To see the other types of publications on this topic, follow the link: Cutting and Finishing Operators.

Journal articles on the topic 'Cutting and Finishing Operators'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Cutting and Finishing Operators.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Hunusalela, Zeny Fatimah, Surya Perdana, and Galuh Krisna Dewanti. "Analisis Postur Kerja Operator Dengan Metode RULA dan REBA Di Juragan Konveksi Jakarta." IKRAITH-Teknologi 6, no. 1 (2021): 1–10. http://dx.doi.org/10.37817/ikraith-teknologi.v6i1.1656.

Full text
Abstract:
Juragan Konveksi is a home industry whose production process is still conventional. Based on the initial observations, there are 3 workstations whose operators often experience injuries, including the pattern cutting station, the sewing process station, and the finishing station. The purpose of this study was to determine the level of work injury on the operator. The methods used are RULA (Rapid Upper Limb Assessment) and REBA (Rapid Entire BodyAssessment). From the results of the NBM (Nordic Body Map) questionnaire calculation, there are four operators who have a high level of risk, namely the pattern cutting process with a score of 80 and 77, and the sewing process with a score of 71 and 73, and two operators have a very high-risk level in the finishing process. with a score of 92 and 103. From the RULA score on the sewing process operator, a score of 6 was obtained, which means that further investigation is needed, and changes must be made immediately. Then for the REBA score on the pattern cutting and finishing process operators get a value of 8 and 10 which means there is a high risk of injury/muscle disorders. This means that it is necessary to make improvements to the productionprocess to reduce work injuries for operators.
APA, Harvard, Vancouver, ISO, and other styles
2

S., M. Iftekhar Alam, Obaidul Haque Md., Anwar Hossain Mohammad, et al. "Work related Musculoskeletal Complain among the Cutting and Finishing Operators at a Readymade Garments Factory in Bangladesh." European Journal of Advances in Engineering and Technology 6, no. 1 (2019): 52–60. https://doi.org/10.5281/zenodo.10671971.

Full text
Abstract:
<strong>ABSTRACT</strong> Background: Work related musculoskeletal Disorders (WMSDs) are one of the most vulnerable physical complications that require medical attention. Cutting and finishing workers has stannous activities in their job and they generally serves overtime; thus prone to WMSDs. The objective of this study was to explore the work related musculoskeletal complain among the cutting and finishing operators in readymade garments (RMG) factory. Methodology: A descriptive cross-sectional research design was employed to study the WMSD complains among readymade garments workers in the Delta Composite Knitting Industries Limited. The study was conducted from January 2015 to December 2017. Study population comprised of male and female who had at least 1 years of working experience in RMG sector and only the cutting and finishing operators in that garments factory. Result: The mean age of the respondent was 29 years (SD=&plusmn;6.5), male were prominent in percent (84%), maximum participants were from rural area ( 73.3%), most of them were SSC passed (40%) and at least have primary education (23.3%), LBP a common problem (36%), most them had moderate pain (51%), recurrent attack of pain common in 1 to 5 times among (66.67%) participants, for the treatment of their pain maximum time received medication (72%), there working hour lies between 11 to 14 hours (71%). Most preferred posture was standing (50.7%). Result shows cutting operators (56%) are more vulnerable rather than swing operators. Statistical significant found in Job experience (P=.000), Age (P=.000), daily working hours with overtime (P=.000) and posture (P=.000) with pain and discomfort experienced by participants; a linear relation among age, musculoskeletal pain or discomfort, duration of work and work experience with statistical significance (&lt;0.05). This findings suggests highly significance (&lt;0.01) relation of variables that represents the aged worker having more experience in job and working overtime has a greater complaint of musculoskeletal pain and discomfort. The result also elicited that, majority of the workers with musculoskeletal pain and discomfort maintained a sustained posture for longer duration during their work time. Conclusion: Our study reveals that cutting operators are more vulnerable to LBP than finishing operators. This study could help the general population, government as well as stakeholders about the health risk and their possible measure. Reducing the work strain and providing a supportive workplace environment will have a prerequisite for productive outcome.
APA, Harvard, Vancouver, ISO, and other styles
3

Harvinder, Singh, Kumar Swarn, Singh Avtar, Singh Ravinder, and Kumar Satish. "Technological innovations in surface finishing and polishing: Towards enhanced quality and efficiency." i-manager's Journal on Material Science 12, no. 4 (2025): 27. https://doi.org/10.26634/jms.12.4.21909.

Full text
Abstract:
Enhancing surface quality across all machine components is essential for minimizing wear-related losses and prolonging the operational life of mechanical parts. Fine finishing plays a critical role in the manufacturing of hard surfaces—such as molds and dies—by improving surface smoothness and flatness while eliminating tool marks. Although cutting processes have largely been automated through Computer Numerical Control (CNC) systems, fine finishing and polishing still heavily depend on the skill and expertise of experienced operators. In instances where operators lack polishing proficiency, achieving the desired surface roughness and smoothness becomes time- consuming. Notably, polishing operations can consume more than half of the total production time, presenting a significant challenge in manufacturing workflows. Additionally, the harsh working conditions associated with polishing—characterized by noise and dust—often discourage workers from engaging in such tasks. Given these challenges, this review study focuses on recent advancements and emerging technologies aimed at improving fine surface finishing processes.
APA, Harvard, Vancouver, ISO, and other styles
4

Yang, Pei Qing, and Li Bao An. "Optimal Selection of Machining Parameters by Genetic Algorithms for Face-Milling Operations Based on Minimum Unit Machining Time." Advanced Materials Research 602-604 (December 2012): 1989–92. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.1989.

Full text
Abstract:
In this paper, the parameter optimization problem for face-milling operations is studied. A mathematical model is developed in order to minimize unit machining time. The machining process needs one finishing pass and at least one roughing pass depending on the total depth of cut. Maximum and minimum allowable cutting speeds, feed rates and depths of cut, as well as tool life, surface roughness, cutting force and cutting power consumption are constraints of the model. Optimal values of machining parameters are found by a genetic algorithm (GA). The influence of tool replacement time and GA operators is evaluated.
APA, Harvard, Vancouver, ISO, and other styles
5

Prayoga Dwi Firmansyah and Boy Isma Putra. "Analysis of Body Posture and Mental Workload in Production Operators Using the Rapit Entire Body Assesment and Modifiet Cooper Harper Methods." INOVTEK Polbeng - Seri Informatika 9, no. 2 (2024): 488–99. http://dx.doi.org/10.35314/jydtgg04.

Full text
Abstract:
Muscle fatigue can cause problems or musical symptoms. The problem of musculoskeletal can be affected by such factors as energy, posture, action over and over - again, and longer working hours, with a 20% delay production percentage. It aims to analyze the body posture and mental workload on the production operator. The study's sample removal was made of 15 production operators at the XYZ corporation. The purpose of the study is, to know the impact of body posture, evaluate the risk factors of less-ergonomic working posture, and know the category of mental workload experienced by production operators at the XYZ pt. The data analysis techniques used in this study are Reba and MCH analysis. Research results by using the Reba method score 7 which means moderate risk work if carried on a long period, and changes need to be made immediately. On MCH methods obtained underload job classifications on purging and refining activities, installment of the plate, end of the plate, final fitting, casting, finishing, shipping, release of the product, PC strand cutting, and removal of the product. Whereas an optimum classification load on the scrounging activities section. Overload classification is the installation, spiral, and PC strand, and early 20% stress.
APA, Harvard, Vancouver, ISO, and other styles
6

Dumitru, DASCĂLU. "Finplast, a proceeding for optimization the performing of antifriction material surfaces." Scientific Bulletin of Naval Academy XIX, no. 1 (2018): 573–77. http://dx.doi.org/10.21279/1454-864x-18-i1-086.

Full text
Abstract:
FINPLAST it’s a solution for up grating the trybological performing of antifriction material surfaces of sliding bearings. Finplast is an extension of the cold plastic deformation proceeding in the domain of finishing of sliding bearings. This proceeding was researched by the author in the field of production after studying the effect of metal cutting by finishing surfaces of sliding bearing. The paper presents the device for obtain the surfaces for study of the influents of FINPLAST proceeding parameters over most important tribological parameters. The paper presents the visual aspect and roughness profile of surfaces obtain by FINPLAST proceeding.
APA, Harvard, Vancouver, ISO, and other styles
7

Yoshioka, Hayato. "Special Issue on the Latest Machine Tool and Manufacturing Technologies." International Journal of Automation Technology 17, no. 5 (2023): 433. http://dx.doi.org/10.20965/ijat.2023.p0433.

Full text
Abstract:
The social demands for manufacturing systems are constantly changing with the times. In recent years, environmental and social issues have been complicating these demands. For example, all industrial sectors need to consider environmentally responsible ways to achieve sustainable development goals in a time of paradigm shifts. The demands in the manufacturing field include high productivity, high quality, low energy consumption, and help for aging operators. To meet these various demands for manufacturing systems, we must create innovative manufacturing technologies to realize advanced production systems. This special issue focuses on state-of-the-art machine tools and manufacturing technologies to accelerate production engineering innovation. This issue consists of eleven research papers covering the following fields. - Advanced structure and drive systems in machine tools - Industrial robot applications - Advanced cutting technologies - Evaluation and calibration technologies of motion error - Surface finishing technologies - Grinding of hard and brittle materials All of these research contributions were presented at IMEC2022, a joint event with JIMTOF2022, held in Tokyo, Japan in 2022. I would like to sincerely thank all the authors for their contributions, and I sincerely hope that the papers in this special issue further contribute to the development of our future society.
APA, Harvard, Vancouver, ISO, and other styles
8

Fauzi Jafar Amin, Dewi Shofi Mulyati, and Selamat. "Usulan Perbaikan Kualitas Produk Jersey Menggunakan Metode Fault Tree Analysis (FTA) dan Failure Mode and Effect Analysis (FMEA)." Bandung Conference Series: Industrial Engineering Science 4, no. 2 (2024): 820–28. http://dx.doi.org/10.29313/bcsies.v4i2.14825.

Full text
Abstract:
Abstract. UMKM X is an UMKM that operates in the digital print industry with the products produced, namely jersey products. These products are produced through work stations, namely design work stations, print work stations, cutting work stations, press work stations, and finishing work stations and packaging and sanding. X MSMEs are currently experiencing problems, namely the presence of defective products which result in losses for these MSMEs because these defects cannot be reworked. Based on data on production numbers and data on the number of defects at X MSMEs, it is known that the average percentage of defects during 2022 is 10.28%, this shows that the high number of defects that occur in jersey products. Defects that occur at the press work station are shading defects, defects exposed to other colors, defects in color not entering and pinch defects. The defect that occurs at the printing workstation is the ink spillage defect. Defects that occur in jersey products can be subject to quality improvement using the Fault Tree Analysis (FTA) method to determine the causes of defects that occur and Failure Mode and Effect Analysis (FMEA) to design repairs and produce risk values for the causes of defects that are prioritized for repair or value. The highest RPN in the process of a product. The repair design is made using the 5W + 1H asking concept based on the results FMEA that has been calculated. Improvements made include including training for experienced operators and new operators, creating SOPs for press work stations, installing HEPA filters at press work stations and installing dehumidifiers at print work stations. Abstrak. UMKM X yang bergerak di bidang industri digital print dengan produk yang dihasilkan yaitu produk jersey. Produk tersebut diproduksi dengan melewati stasiun kerja yaitu stasiun kerja desain, stasiun kerja cetak, stasiun kerja potong, stasiun kerja press, dan stasiun kerja finishing dan packaging serta pengamplasan. UMKM X saat ini sedang mengalami permasalahan yaitu adanya produk cacat yang mengakibatkan kerugian bagi UMKM ini karena kecacatan tersebut tidak bisa dikerjakan ulang. Berdasarkan data jumlah produksi dan data jumlah cacat pada UMKM X diketahui persentase cacat rata-rata selama tahun 2022 sebesar 10,28%, hal tersebut menunjukkan bahwa tingginya kecacatan yang terjadi pada produk jersey. Kecacatan yang terjadi pada stasiun kerja press adalah cacat shading, cacat terkena warna lain, cacat warna tidak masuk, dan cacat pinch. Kecacatan yang terjadi pada stasiun kerja cetak adalah cacat tinta meleber. Kecacatan yang terjadi pada produk jersey dapat dilakukan perbaikan kualitas dengan menggunakan metode Fault Tree Analysis (FTA) untuk mengetahui penyebab kecacatan yang terjadi dan Failure Mode and Effect Analysis (FMEA) untuk merancang perbaikan dan menghasilkan nilai risiko penyebab kecacatan yang diprioritaskan untuk dilakukan perbaikan atau nilai RPN tertinggi pada proses dari suatu produk. Perancangan perbaikan dibuat menggunakan konsep bertanya 5W + 1H yang dilakukan berdasarkan hasil FMEA yang sudah dihitung. Perbaikan yang dilakukan di antaranya adalah memasukkan pelatihan untuk operator yang berpengalaman dan operator yang baru, membuat SOP untuk stasiun kerja press, memasang HEPA Filter di stasiun kerja press, dan memasang dehumidifier di stasiun kerja print.
APA, Harvard, Vancouver, ISO, and other styles
9

Santos, Sandro Morais dos, Paolo Lages Sequenzia, Elias Barbosa Rodrigues, et al. "System development for production of black soldier fly larvae (Hermetia illucens) in small scale, using wild flies." Research, Society and Development 11, no. 1 (2022): e20311124747. http://dx.doi.org/10.33448/rsd-v11i1.24747.

Full text
Abstract:
Technological innovation in rural areas guarantees the maintenance and subsistence of rural producers. Additionally, it is mandatory to use strategies aimed at reducing costs in animal production and reducing the environmental impact involved, making it challenging in the current global scenario. Thus, it is necessary to develop new alternative methods of production aimed at small scales, which can be implemented in small properties with reduced capital investment. In this sense, the objective was to describe the development of a system capable of inducing the production of black soldier fly larvae-BSFL (Hermetia illucens) through the attractiveness of egg laying of wild adults. To make the larvae production system, the following were needed: a plastic drum, with a capacity of 200 liters, 10 meters of 8mm silk rope, 1.5 m2 of wire mesh with 25mm x 20mm mesh, 1 m2 3mm x 2mm nylon mesh, plastic faucet for draining the slurry, one meter of 20mm diameter hose, two plastic containers with capacity of 20 liters for collecting the slurry and pre-pupae; besides equipment for cutting and finishing the drum. The System was supplied with organic plant material from daily household disposal, and other plant residues produced on the property. The development of this System can provide great social and economic viability, as it can be implemented in small rural properties for the treatment of organic waste. The mechanism presented good performance for the recycling of organic waste, and also for the production of BSFL, with satisfactory quantity collected daily.
APA, Harvard, Vancouver, ISO, and other styles
10

Ochi, Yuzuha, Masatoshi Usui, and Hiroyuki Sasahara. "Influence of Reverse Finishing on Characteristics of Drilling Surface." International Journal of Automation Technology 18, no. 3 (2024): 332–41. http://dx.doi.org/10.20965/ijat.2024.p0332.

Full text
Abstract:
Aluminum alloys are often used in automobile and aircraft parts that require higher dimensional accuracy and durability. Drilling is often used in the machining process of these products and accounts for about 60% of the machining performed on these products. Deterioration of finishing surface accuracy in drilling causes problems such as decreased tool life due to wear and increased cost due to the introduction of the finishing process. The objective of this study is to evaluate the finished surface characteristics in the drilling of aluminum alloys using reverse finishing, with a focus on the cutting direction of finishing, with respect to the roughing direction. The torque and thrust force are smaller in reverse finishing than in forward finishing. The reduction effects of cutting force in reverse finishing were more significant when the finishing depth of cut was smaller in relation to the roughing-affected layer. Under conditions where the finishing depth was equal to or greater than the roughing-affected layer, it was possible to reduce cutting forces and improve surface roughness while obtaining compressive residual stresses equivalent to forward finishing.
APA, Harvard, Vancouver, ISO, and other styles
11

Denkena, Berend, Luis de Leon, and Jens Köhler. "Cutting Edge Preparation for Cemented Carbide Milling Tools." Advanced Materials Research 76-78 (June 2009): 597–602. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.597.

Full text
Abstract:
After the grinding process, the cutting edges of cemented carbide milling tools tend to chipping. Chipping has a strong influence on the tool performance. For this reason, the cutting edges are further prepared. Additionally, a cutting edge rounding has an impact on the wear behavior and the process stability. For the cutting edge preparation of milling tools, magnetic finishing is a promising process. This paper describes the process of magnetic finishing. The influencing parameters, i.e. the process time and the distance between the cutting tool and the magnetic disks, are investigated. Furthermore, the effect of magnetic finishing on the tool life is demonstrated using the example of a milling process with titanium.
APA, Harvard, Vancouver, ISO, and other styles
12

Hara, Keisuke, Hiromi Isobe, Shuichi Chiba, and Keiko Abe. "A Study of Ultrasonically Assisted Fly Cutting for High Precision Machining Hard Brittle Materials." Advanced Materials Research 126-128 (August 2010): 252–57. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.252.

Full text
Abstract:
This paper describes ultrasonically assisted fly cutting for finishing advanced ceramics for hot-press dies used to fabricate glass lenses. Fly cutting can perform shallow machining, which realizes ductile-mode cutting of hard, brittle materials. Ultrasonically assisted machining can increase the critical cutting depth (i.e., the maximum cutting depth for ductile-mode machining of a surface). The technique proposed in this paper combines both techniques and enables precise finishing of advanced ceramics at a high machining efficiency. Ultrasonic assisted fly cutting was found to reduce tool fracture and improve the finished surface quality compared with conventional fly cutting.
APA, Harvard, Vancouver, ISO, and other styles
13

Wada, Tadahiro, Kazuki Hiro, and Nakanishi Jun. "Cutting Performance of Turning Insert with Three-Arcs-Shaped Finishing Edge." Applied Mechanics and Materials 110-116 (October 2011): 1630–36. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.1630.

Full text
Abstract:
In the turning of a shaft with a step of specified corner R, it is important whether the corner radiuses of the turning insert is the same as the specified corner R or lower than it. A turning tool with a large corner radius cannot adapt to cutting a shaft with a step of specified corner R. In this study, the surface roughness, cutting force, and tool wear were experimentally investigated in order to clarify the cutting performance of the turning insert with a three-arcs-shaped finishing edge. The machined surface of the insert with a three-arcs-shaped finishing edge was better than that of the normal insert. The wear progress of the insert with an arc-shaped finishing edge was slightly slower than that of the normal insert. The cutting force of the insert with an arc-shaped finishing edge was almost the same as that of the normal insert.
APA, Harvard, Vancouver, ISO, and other styles
14

Titova, I., and A. Konoplin. "IMPROVEMENT OF TECHNOLOGICAL PROCESS OF MACHINING WITH THE DESIGN OF THE CUTTER FOR FINISH TURNING." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 5, no. 10 (2020): 84–90. http://dx.doi.org/10.34031/2071-7318-2020-5-10-84-90.

Full text
Abstract:
The technological process of mechanical processing of composite materials is considered. A brief description of composite materials, their physical and mechanical properties, and their structure is studied. The features of processing of glass-reinforced plastics carbon fiber reinforced plastics, organic plastics and bioplastics are reflected. The processing of composites will be difficult due to reinforcement schemes, different fiber directions and types of continuous fiber laying. All this leads to certain requirements that will be imposed on the tool and its wear rate. Tool wear consists of different types of wear – adhesive, fatigue, abrasive-mechanical, chemical. When carrying out the cutting process, it is necessary to take into account the direction of reinforcement, and therefore the direction of processing of the cutting tool. Depending on the state of the surface layer, the cutting tool required for mechanical processing is considered. The justification of the need to improve the design of the cutting tool is given. The design of the cutting head has been developed for the cutting process. It consists of roughing and finishing cutters. The values of the design parameters of the tool head are considered and selected. The optimal cutting depth for the finishing tool is determined. The geometric parameters of the finishing tool are selected experimentally, the purpose of which is to provide the required quality of processing. Using experiments, the values of the angle of deviation of the main cutting edge from the horizontal plane are found. The design of the finishing tool is described in detail, which largely eliminates the disadvantages of processing. The appearance of a leading crack when turning with a finishing tool is excluded.
APA, Harvard, Vancouver, ISO, and other styles
15

Hara, Keisuke, Hiromi Isobe, Mohd Fauzi Ismail, and Shoichi Kaihotsu. "Effects of Cutting Edge Truncation on Ultrasonically Assisted Grinding." Advanced Materials Research 325 (August 2011): 97–102. http://dx.doi.org/10.4028/www.scientific.net/amr.325.97.

Full text
Abstract:
Dies for injection molded parts require high-quality surface finishes in terms of both appearance and integrity. Manual finishing by skilled workers is required to produce such surfaces, but this takes several days. To minimize the amount of polishing required, a new finishing technique that employs ultrasonically assisted diamond grinding was proposed in a previous report. Cutting edge truncation prior to grinding is required to produce a mirror surface. In this study, the effect of cutting edge truncation was investigated and the relationships between the ground surface roughness and the cutting torque and the thrust force were considered to optimize the grinding conditions for mirror surface finishing.
APA, Harvard, Vancouver, ISO, and other styles
16

Wang, Yu, Shao Hui Yin, and Takeo Shinmura. "Material Removal Mechanism in Vibration-Assisted Finishing." Advanced Materials Research 69-70 (May 2009): 158–62. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.158.

Full text
Abstract:
In this paper, it is explored the material removal mechanism in vibration-assisted finishing process. On the basis of some experiments, the finishing characteristics are represented summarily. Though the analysis, it is shown that the vibration assistance method may increase cutting distance and speed of abrasive and material removal in per unit finishing distance which is affected by vibration frequency and amplitude, in-process abrasives behavior. What more, the increase in material removal rate is mainly due to an increase in material removal per unit finishing distance which is affected by the effects of abrasives cross-cutting.
APA, Harvard, Vancouver, ISO, and other styles
17

Keller, Petr. "Optimal Cutting Conditions for Surface Finishing of Parts Made of Photopolymers." Materials Science Forum 862 (August 2016): 192–99. http://dx.doi.org/10.4028/www.scientific.net/msf.862.192.

Full text
Abstract:
The article deals with finishing parts manufactured by means of PolyJet 3D Printing additive technology using Objet500 Connex made of polymers with trade names "Vero White Plus" and "Digital ABS". A turning technology on a CNC turning lathe was used for finishing the surface of the parts. The goal of this article is to find optimal cutting conditions for finishing operations by turning of these materials with regard to the best surface quality possible even during interrupted cutting.
APA, Harvard, Vancouver, ISO, and other styles
18

Pätoprstý, B., I. Buranský, and F. Jurina. "Influence of selected parameters of drag finishing on tool microgeometry." Journal of Physics: Conference Series 2712, no. 1 (2024): 012026. http://dx.doi.org/10.1088/1742-6596/2712/1/012026.

Full text
Abstract:
Abstract The aim of the experiment described in the paper was to determine how selected parameters of drag finishing such as process time, immersion depth and rotation frequency affect microgeometry of cutting edge. Four flute cemented carbide mills with diameter of 10 mm were used in this experiment. These mills were drag finished on prototype drag finishing machine developed on Faculty of Materials Science and Technology, Slovak University of Technology. Alicona Infinte Focus SL measuring machine was used to measure microgeometry of these mills. The main parameter of microgeometry of cutting edge was the size of the radius of cutting edge. In the article we compared which parameter has the biggest influence on size of cutting edge radius and also there was statistical evaluation carried out. The most significant parameter of drag finishing was determined to be the immersion depth.
APA, Harvard, Vancouver, ISO, and other styles
19

Drachev, O. I., and A. N. Kravtsov. "TWO CUTTING TURNING OF BODIES OF REVOLUTION." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 8(255) (August 31, 2021): 21–24. http://dx.doi.org/10.35211/1990-5297-2021-8-255-21-24.

Full text
Abstract:
The technology of two-cut rough and rough turning of rotation bodies in relation to lathes is considered. Dynamics of part working surfaces formation by longitudinal oscillations of cutters with phase delay of finishing cutter from rough one is shown. Dynamics of finishing cutter in function of damping coefficient is considered. The mathematical model of two-cut turning process is given.
APA, Harvard, Vancouver, ISO, and other styles
20

Burhanudin, Margono, Edy Suryono, Nugroho Tri Atmoko, and Zainuddin. "The Effect of Finishing Allowance and Milling Methode on Surface Roughness in the Finishing Process of Al5052 and Al7075." Key Engineering Materials 935 (November 30, 2022): 63–71. http://dx.doi.org/10.4028/p-yt2516.

Full text
Abstract:
Experiments with variations in the finishing allowance and different milling cutting methods (climb milling, conventional milling) were carried out on aluminum series 5052 and 7075 to investigate the effect of thickness finishing allowance and milling method on the surface roughness of the finishing process. The finishing process with variations in the finishing allowance of 0.05/ 0.1/ 0.15/ 0.2/ 0.25 and 0.3 mm is carried out with a feed rate of 150 mm/minute, fpt 0.0187 mm, spindle speed 2000 rpm, cutting speed 62.8 meters/minute and depth of cut 25 mm using conventional milling and climb milling methods. The experimental results show that the surface roughness with the climb milling method is smaller than the conventional milling method in all variations of the finishing allowance thickness and on the type of material (Al5052, Al7075). While the effect of variations in the thickness of the finishing allowance shows that at a thickness of 0.3 mm, it produces the smallest surface roughness compared to surface roughness at the finishing allowance thickness of 0.05 0.1 0.15 0.2 and 0.25 both on Al5052 and Al7075 .
APA, Harvard, Vancouver, ISO, and other styles
21

Xie, Hui Jun, and Yan Hua Zou. "Application of Magnetic Abrasive Finishing Process Using Alternating Magnetic Field for Finishing Polychlorotrifluoroethylene Resin." Materials Science Forum 1066 (July 13, 2022): 85–90. http://dx.doi.org/10.4028/p-q08k66.

Full text
Abstract:
In previous studies, it has been verified that the magnetic abrasive finishing process using alternating magnetic field can achieve higher finishing efficiency and surface quality, and nanolevel finishing of 5052 aluminum alloy material and SUS304 stainless steel material has been realized. In this study, the feasibility for ultra-precision finishing of polychlorotrifluoroethylene resin by this process was investigated, and the cutting mechanism of particles was discussed. As a result, the cutting depth of the particles is mainly affected by the size of the magnetic particles and abrasive particles. According to the experimental results, under optimized experimental conditions, the surface roughness of the workpiece can be improved from 112.83 nm Ra to 5 nm Ra within 15 minutes.
APA, Harvard, Vancouver, ISO, and other styles
22

Díaz-Álvarez, José, Víctor Criado, Henar Miguélez, and José Cantero. "PCBN Performance in High Speed Finishing Turning of Inconel 718." Metals 8, no. 8 (2018): 582. http://dx.doi.org/10.3390/met8080582.

Full text
Abstract:
Inconel 718 is a Ni superalloy widely used in high responsibility components requiring excellent mechanical properties at high temperature and elevated corrosion resistance. Inconel 718 is a difficult to cut material due to the elevated temperature generated during cutting, its low thermal conductivity, and the strong abrasive tool wear during cutting process. Finishing operations should ensure surface integrity of the component commonly requiring the use of hard metal tools with sharp tool edges and moderate cutting speeds. Polycrystalline cubic boron nitride (PCBN) tools recently developed an enhanced toughness suitable for these final operations. This paper focuses on the study of PCBN tools performance in finishing turning of Inconel 718. Several inserts representative of different manufacturers were tested and compared to a reference carbide tool. The evolution of tool wear, surface roughness, and cutting forces was analyzed and discussed. PCBN tools demonstrated their suitability for finishing operations, presenting reasonable removal rates and surface quality.
APA, Harvard, Vancouver, ISO, and other styles
23

Wu, Yu Hou, Hui Jie You, De Hong Zhao, and Yan Liu. "CNC Machining and Simulation for Relief of Special-Shaped Stone." Advanced Materials Research 468-471 (February 2012): 69–73. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.69.

Full text
Abstract:
Use special-shaped stone turn-milling machining center (HTM50200) to achieve the production of complex relief. Through the ArtCAM establish the three dimensional relief model of Riverside Scene at Qingming Festival. Analysis of blank material characteristics and features of NC machining center, select the appropriate tool, calculate cutting depth 、cutting speed 、feed rate 、spindle speed and other process parameters by formulas. With ArtCAM/CAM module to make process of the preparation of the rough finishing, the semi-finishing and finishing, and then generate the tool path file. Simulation in VERICUT can optimize the potential collision, over-cutting and owe cut of the machining process, and the adoption of special-shaped stone machining center for milling to finalize production of the relief, summarize the experience in special-shaped stone processing.
APA, Harvard, Vancouver, ISO, and other styles
24

Wang, Tong, Feng Qiu, C. Q. Wang, G. Z. Zhang, and Xiao Cun Xu. "Experimental Study on Dry WEDM Finishing." Key Engineering Materials 455 (December 2010): 190–93. http://dx.doi.org/10.4028/www.scientific.net/kem.455.190.

Full text
Abstract:
Comparing with conventional WEDM in emulsion, dry finishing of high-speed WEDM (HS-WEDM) has advantages such as higher material removal rate, better surface roughness and straightness. Authors have presented a new procedure as gas-liquid combined multiple cut, in which roughing is processed in dielectric liquid, and semi-finishing is in liquid or gas, while finishing is in gas. For better understanding the effect of machining parameters on surface roughness and cutting speed in dry finishing, a L25(56) Design was implemented. The analysis of variance shows that the effect of pulse duration on surface roughness is of high significance, and peak current is of significance respectively, and the effect of no load worktable feed on cutting speed is high significant.
APA, Harvard, Vancouver, ISO, and other styles
25

STRAKA, ROBERT, JOZEF PETERKA, and TOMAS VOPAT. "COMPARISON OF PREPARATION METHODS IN TERMS OF TOOL LIFE AND SURFACE ROUGHNESS." MM Science Journal 2021, no. 4 (2021): 4836–40. http://dx.doi.org/10.17973/mmsj.2021_10_2021101.

Full text
Abstract:
The article compares two cutting edge preparation methods and their influence on the machined surface roughness of the difficult to cut nickel alloy Inconel 718 and the tool wear of cutting inserts made of cemented carbide. The manufacturing and preparation process of cutting inserts used in the experiment were made by Dormer Pramet. The preparation methods used in the experiment were drag finishing and brushing. Cutting parameters did not change during the whole turning process to maintain the same conditions in each step of the process and were determined based on tests for a semi-finishing operation of the turning process. To obtain durability of 25 to 30 minutes with controlled development of the tool wear the cutting parameters were determined with cooperation with the cutting inserts manufacturer.
APA, Harvard, Vancouver, ISO, and other styles
26

STRAKA, ROBERT, JOZEF PETERKA, and TOMAS VOPAT. "COMPARISON OF PREPARATION METHODS IN TERMS OF TOOL LIFE AND SURFACE ROUGHNESS." MM Science Journal 2021, no. 4 (2021): 4836–40. http://dx.doi.org/10.17973/mmsj.2021_10_2021101.

Full text
Abstract:
The article compares two cutting edge preparation methods and their influence on the machined surface roughness of the difficult to cut nickel alloy Inconel 718 and the tool wear of cutting inserts made of cemented carbide. The manufacturing and preparation process of cutting inserts used in the experiment were made by Dormer Pramet. The preparation methods used in the experiment were drag finishing and brushing. Cutting parameters did not change during the whole turning process to maintain the same conditions in each step of the process and were determined based on tests for a semi-finishing operation of the turning process. To obtain durability of 25 to 30 minutes with controlled development of the tool wear the cutting parameters were determined with cooperation with the cutting inserts manufacturer.
APA, Harvard, Vancouver, ISO, and other styles
27

Lu, Yu Mei, Tong Wang, Chao Qun Wang, and Cheng Wen Wang. "Empirical Modeling of High-Speed WEDM Finishing in Gas." Advanced Materials Research 486 (March 2012): 503–8. http://dx.doi.org/10.4028/www.scientific.net/amr.486.503.

Full text
Abstract:
This paper aims at getting the finishing process models in HS-WEDM in gas. Using cutting speed and the roughnessRaas index, the five factors of pulse-on time, peak current, offset, pulse interval ratio and worktable feed were chosen in dry finishing. The effects of the five factors and their interaction on cutting speed and the Surface roughnessRaand empirical models for cutting speed and roughnessRawere developed by performing a designed experiment based on the central composite design (CCD) experiments, significant order influencing cutting speed and roughness were found. The results of the verification test show thatRaRegression Model and Cutting Speed Regression Model have high reliability, and can achieve significant prediction effect, more accurate mathematical models are provided for the further HS-WEDM process research.
APA, Harvard, Vancouver, ISO, and other styles
28

Peterka, Jozef, Peter Pokorny, Stefan Vaclav, Boris Patoprsty, and Marek Vozar. "MODIFICATION OF CUTTING TOOLS BY DRAG FINISHING." MM Science Journal 2020, no. 1 (2020): 3822–25. http://dx.doi.org/10.17973/mmsj.2020_03_2019130.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Wójcik, Robert. "Improving quality of cutting tools by finishing." Mechanik, no. 10 (October 2016): 1516–17. http://dx.doi.org/10.17814/mechanik.2016.10.438.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Uddin, M. Sharif, Soichi Ibaraki, Atsushi Matsubara, Susumu Nishida, and Yoshiaki Kakino. "A Tool Path Modification Approach to Cutting Engagement Regulation for the Improvement of Machining Accuracy in 2D Milling With a Straight End Mill." Journal of Manufacturing Science and Engineering 129, no. 6 (2007): 1069–79. http://dx.doi.org/10.1115/1.2752526.

Full text
Abstract:
In two-dimensional (2D) free-form contour machining by using a straight (flat) end mill, conventional contour parallel paths offer varying cutting engagement with workpiece, which inevitably causes the variation in cutting loads on the tool, resulting in geometric inaccuracy of the machined workpiece surface. This paper presents an algorithm to generate a new offset tool path, such that the cutting engagement is regulated at a desired level over the finishing path. The key idea of the proposed algorithm is that the semi-finish path, the path prior to the finishing path, is modified such that the workpiece surface generated by the semi-finish path gives the desired engagement angle over the finishing path. The expectation with the proposed algorithm is that by regulating the cutting engagement angle along the tool path trajectory, the cutting force can be controlled at any desirable value, which will potentially reduce variation of tool deflection, thus improving geometric accuracy of machined workpiece. In this study, two case studies for 2D contiguous end milling operations with a straight end mill are shown to demonstrate the capability of the proposed algorithm for tool path modification to regulate the cutting engagement. Machining results obtained in both case studies reveal far reduced variation of cutting force, and thus, the improved geometric accuracy of the machined workpiece contour.
APA, Harvard, Vancouver, ISO, and other styles
31

Bu, Xiao Fei, Hu Lin, and Long Chen. "Smooth Cutting Operation Strategy for High Finishing Machining." Advanced Materials Research 875-877 (February 2014): 896–900. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.896.

Full text
Abstract:
High finishing machining tool path generation methods are usually adopted for five-axis computer numerically controlled machining of sculptured surface parts. The quality of the high finishing machining has an important effect on that of the surface. In this paper, a high finishing machining tool path generation method is introduced to generate an optimal tool path. The initial tool path is firstly created based on the constant scallop height, then the derived tool paths are generated as a kind of the diagonal curve by the initial tool path, and at last, the tool path smoothing algorithm is applied to the generated tool path. This path algorithm can ensure higher level of smooth of the surface been machined. Finally, the results of simulation and experiment of the machining process are given to verify the smooth and applicability of the proposed method.
APA, Harvard, Vancouver, ISO, and other styles
32

Sato, T., H. Yamaguchi, Takeo Shinmura, and T. Okazaki. "Study of Internal Magnetic Field Assisted Finishing for Copper Tubes with MRF (Magneto-Rheological Fluid)-Based Slurry." Key Engineering Materials 329 (January 2007): 249–54. http://dx.doi.org/10.4028/www.scientific.net/kem.329.249.

Full text
Abstract:
This research studied the internal magnetic field assisted finishing with MRF (Magneto-rheological Fluid)-based slurry for copper tubes.MRF-based slurry that included diamond abrasives was applied to the internal magnetic field assisted finishing for copper tubes and the finishing characteristics were studied. The results showed that the exciting current and the abrasive size changed the finishing characteristics of MRF-based slurry. This finishing process creates a smooth mirror finished surface with few directional cutting marks on the surface of the copper tube.
APA, Harvard, Vancouver, ISO, and other styles
33

Dvirna, Olha. "The Innovative Post-Weld Finishing Method and Non-Standard Cutting Tool for Carrying Out this Method." Acta Mechanica et Automatica 18, no. 1 (2023): 22–28. http://dx.doi.org/10.2478/ama-2024-0003.

Full text
Abstract:
Abstract The most common method of post-weld finishing is grinding with an abrasive tool. This finishing method leads to the occurrence of faults on the treated surface: locations missed or hardened twice, structural notches and stretching residual stress in the surface layer. The faults mentioned lead to the creation and development of ordinary as well as fatigue cracks, seizing or other damage. In addition, grinding is a process that often involves manual labour, which significantly increases the time required for finishing the procedure. Moreover, it is impossible to automate this process. Also, grinding is a process that is damaging for both people and the environment. In contrast to grinding and other processes of post-weld surface finishing, the innovative method, which is the subject of this article, does not have the faults and inconveniences of the previously mentioned techniques. The post-weld surface finishing method by moving of the innovative multi-edge cutting tool along the weld bead is presented in this article. In this method, machining allowance is treated as the weld bead height, which is flush-removed with the base material in one step during one pass of the cutting tool. The adjacent teeth height of changing and increasing according to the direction of feed and the difference in height between the first and last teeth are equal to the weld bead height. The number of cutting teeth necessary to flush-finish the weld bead with the base metal surface depends on the difference in the first and last teeth height and how it is divided. The tooth length is greater than half of the distance between the adjacent cutting teeth, which enables finishing the heterogeneous post-weld surface with many defects and increased hardness. The innovative method is characterised by short machining time of the weld bead and provides an accurate, efficient and economical process.
APA, Harvard, Vancouver, ISO, and other styles
34

Timofeev, Dmitriy Yu, Aleksei D. Khalimonenko, and Maria A. Nacharova. "Preliminary Local Thermal Impact as a Surface Quality Assurance Factor." Materials Science Forum 1031 (May 2021): 125–31. http://dx.doi.org/10.4028/www.scientific.net/msf.1031.125.

Full text
Abstract:
The article considers the issues of assuring the quality of the surfaces of machine parts by applying a preliminary local thermal impact before their edge cutting machining. In the zone of application of local thermal impact, a zone of metastable structure with respect to the material of the workpiece to be treated occurs. When the cutting plane intersects with the local thermal application line, the formed flow chip is segmented. The created graphs allow assigning of local thermal modes to the surface of the workpiece before edge cutting machining. Application of preliminary local thermal impact will assure the specified quality of the surface of the treated workpiece at semi-finishing and finishing edge cutting machining modes and stable segmentation of the flow chip.
APA, Harvard, Vancouver, ISO, and other styles
35

Prado, Teresa, Alejandro Pereira, Maria Fenollera, and Thomas G. Mathia. "Simple Discriminatory Methodology for Wear Analysis of Cutting Tools: Impact on Work Piece Surface Morphology in Case of Differently Milled Kinetics Steel H13." Materials 13, no. 1 (2020): 215. http://dx.doi.org/10.3390/ma13010215.

Full text
Abstract:
Recently, there is growing interest in optimisation of finishing process thanks to the technologies to follow online the wear of cutting tools. In the present paper, one of the cheapest and simplest non-contact methodologies is described in detail and investigated with robustness evaluation. To simulate the finishing operation of a die, in this study, two cavities were designed in AISI H13 steel. Different inserts corresponding to PVD-(Ti,Al)N coated cemented carbide tool were tested. The described methodology is easy to be applied in manufacturing cutting machining with the opportunity to be implemented on machining processes to follow reasonably wear process of cutting tools.
APA, Harvard, Vancouver, ISO, and other styles
36

Popescu, Daniel. "THE INFLUENCE OF CUTTING PARAMETERS ON THE DYNAMIC STABILITY PERFORMANCE OF FINISHING CNC MACHINES." International Journal of Engineering Technologies and Management Research 7, no. 8 (2020): 50–55. http://dx.doi.org/10.29121/ijetmr.v7.i8.2020.748.

Full text
Abstract:
The paper describes the influence of the cutting regime parameters on the dynamic stability reserve of CNC finishing machines. For this purpose it is used an experimental stand comprised of transducers for measuring tool and workpiece rotation speeds, as well as a measuring device for the dynamic components of the cutting force (Ft, Fx). The processed materials are steel, bronze and cast iron. Finally there is presented the variation pattern of these parameters and their influence on the finishing process productivity.
APA, Harvard, Vancouver, ISO, and other styles
37

Geng, Ke Tao, Yu Guo Wang, Xiao Fei Song, Shu Min Wan, and Bin Lin. "In Vitro Study on Dental Abrasive Finishing of Restorative Ceramics Using Diamond Burs in Dental Surgery." Applied Mechanics and Materials 217-219 (November 2012): 1663–66. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1663.

Full text
Abstract:
With the aesthetics’ enhancement, there is a growing demand for the use of restorative ceramics in dental surgery. However, ceramic materials are hard and brittle, and problems such as surface damage, crack, and fatigue were easily produced in dental abrasive finishing. Consequently, these flaws could cause the strength decrease of the ceramic, which manifest the shortage of the lifespan in dental. Contraposing these problems, a high-speed handpiece with diamond burs was used when finishing the leucite glass ceramic in the dental surgery. In this paper, finishing force, specific energy and surface integrity including the roughness and morphology were observed. the results revealed that both normal and tangential forces increased with the increasing of feed rate and depth of cut, while there is an apparent decrease of the specific energy. These two parameters were bigger in the up finishing than that of down finishing. Finishing parameters have little effect on surface roughness, according to the observation of a scanning electron microscope. It is easily found that the finished surface was consisting of brittle fracture and plastic deformation. For comprehensive, good surface quality could be obtained in the down cutting other than up cutting.
APA, Harvard, Vancouver, ISO, and other styles
38

Campocasso, Sebastien, Jean Philippe Costes, Gérard Poulachon, and Alexis Perez Duarte. "Cutting Forces Modeling in Finish Turning of Inconel 718 Alloy with Round Inserts." Advanced Materials Research 223 (April 2011): 75–84. http://dx.doi.org/10.4028/www.scientific.net/amr.223.75.

Full text
Abstract:
In turning, the applied forces have to be known as accurately as possible, especially in the case of difficult-to-cut materials for aircraft workpieces finishing operations. Traditionally, edge discretisation methodology based on local cutting laws is used to determine the cutting forces and results are usually considered suitable. Nevertheless, only the rake face is considered in most of studies and the cutting relations are determined by direct identification with a straight edge. This study deals with finishing operations of Inconel 718 alloy with one type of round insert. The main objective is to formulate a novel cutting forces model, taking into account the clearance face. First, a generic model based on a geometrical description using homogeneous matrix transformation is presented. Then, cutting coefficients are identified by inverse identification from experimental measurements distributed with an orthogonal design experiment including tool wear. Finally, modeling and experimental values of the cutting forces are compared and the identified model is analysed.
APA, Harvard, Vancouver, ISO, and other styles
39

Stančeková, Dana, Peter Ščotka, and J. Hurka. "Finishing Operation Turning of Flangesfor and Its Intensification." Technological Engineering 9, no. 2 (2012): 35–37. http://dx.doi.org/10.2478/teen-2012-0009.

Full text
Abstract:
Abstract The paper is focused on intensifying of turning of flange with a finishing operation. It provides a range of cutting plates suitable for turning, their experimental verification and evaluation. In the experimental measurements were made durability test selected cutting plates, compared to the parameters, wear, chips, measure and record made of machined surface roughness of the material.
APA, Harvard, Vancouver, ISO, and other styles
40

Miyake, Ryotaro, Hiroyuki Sasahara, Atsushi Suzuki, and Seigo Ouchi. "Wire Arc Additive and High-Temperature Subtractive Manufacturing of Ti-6Al-4V." Applied Sciences 11, no. 20 (2021): 9521. http://dx.doi.org/10.3390/app11209521.

Full text
Abstract:
We investigated the fabrication and finishing of wall-profile machining by wire and arc additive manufacturing (WAAM) employing plasma welding with Ti-6Al-4V wire. We fabricated and integrated a local shield and a cover for the area below the local shield to achieve higher shielding ability. The tensile strength of the fabricated object met the forging standard for Ti-6Al-4V, but elongation was about 7%. We also focused on the possibility of reducing the cutting force and increasing the efficiency of the finishing process by cutting workpieces softened by high temperature immediately after the deposition process. We investigated the cutting force and tool wear of the fabricated objects heated to 300 °C using ceramics tools. Results showed that although the cutting force was reduced at high temperature, the wear rate of the tools was high, and the increase in cutting force due to wear was significant.
APA, Harvard, Vancouver, ISO, and other styles
41

Díaz-Álvarez, José, Antonio Díaz-Álvarez, Henar Miguélez, and José Cantero. "Finishing Turning of Ni Superalloy Haynes 282." Metals 8, no. 10 (2018): 843. http://dx.doi.org/10.3390/met8100843.

Full text
Abstract:
Nickel-based superalloys are widely used in the aeronautical industry, especially in components requiring excellent corrosion resistance, enhanced thermal fatigue properties, and thermal stability. Haynes 282 is a nickel-based superalloy that was developed to improve the low weldability, formability, and creep strength of other γ’-strengthened Ni superalloys. Despite the industrial interest in Haynes 282, there is a lack of research that is focused on this alloy. Moreover, it is difficult to find studies dealing with the machinability of Haynes 282. Although Haynes 282 is considered an alloy with improved formability when compared with other nickel alloys, its machining performance should be analyzed. High pressure and temperature localized in the cutting zone, the abrasion generated by the hard carbides included in the material, and the tendency toward adhesion during machining are phenomena that generate extreme thermomechanical loading on the tool during the cutting process. Excessive wear results in reduced tool life, leading to frequent tool change, low productivity, and a high consumption of energy; consequentially, there are increased costs. With regard to tool materials, cemented carbide tools are widely used in different applications, and carbide is a recommended cutting material for turning Haynes 282, for both finishing and roughing operations. This work focuses on the finishing turning of Haynes 282 using coated carbide tools with conventional coolant. Machining forces, surface roughness, tool wear, and tool life were quantified for different cutting speeds and feeds.
APA, Harvard, Vancouver, ISO, and other styles
42

Chen, Hui Xian, Gong Chu, Meng Pei Wu, and Hui Jun Yang. "Research on Geometric Modeling Method of Finishing Milling Cutter with Fir-Slot." Key Engineering Materials 589-590 (October 2013): 438–43. http://dx.doi.org/10.4028/www.scientific.net/kem.589-590.438.

Full text
Abstract:
Because of the influence of tool geometry, when the fine slotting cutter is cutting, the cutting condition at every point of the type line cutting edge varies, which will lead to uneven loading on the whole cutting edge. Finally, partial earlier failure of the cutter would be initiated. To solve this problem, this paper presented a cutting simulation of the slotting cutter with zero rake angle, which could draw the variation law of cutting force at different locations on the type line. On the basis of micro-elemental milling force model, this paper established mathematical models of different sections along the turning axis of cutting tool, in which the relief angle changed to adapt to the variation of cutting force. The variation law of relief angle could be found by utilizing liner regression analysis. Then the 3D model of tool could be reconstructed. According to cutting experiment analysis of the reconstructed model, the distribution of cutting force at every point of the cutting edge tended to be reasonable, and the rationality of the optimal model was proved. This will offer a new idea to improve the level of slotting cutter design as well as a reference of complex forming cutter design that was completed by using the modern design method.
APA, Harvard, Vancouver, ISO, and other styles
43

Permadi, Jepri, and Arys Hasta Baruna. "Edukasi Fisioterapi Posisi Ergonomis dengan Tema Proper Body Mekanik dalam Pencegahan Resiko MSDS (Musculoskeletal Disorder) di Pekerja Germen Kota Malang." Jurnal Pengabdian Masyarakat Bangsa 3, no. 2 (2025): 538–43. https://doi.org/10.59837/jpmba.v3i2.2244.

Full text
Abstract:
Pekerjaan garmen menjadi lahan bidang penelitian ini memiliki beberapa kegiatan diantaranya bagian cutting (mengangkat kain, memotong kain, membuat pola), bagian produksi (menjahit), dan finishing (setrika uap dan membungkus). Dengan pembagian tugas 5 orang di bagian cutting, 30 orang bagian produksi dan bagian 13 orang bagian finishing. Selanjutnya dilakukan wawancara untuk mengetahui kondisi keluhan yang dirasakan pada anggota tubuh pekerja. Berdasarkan wawancara dengan pekerja garmen diketahui adanya keluhan rasa nyeri dibagian punggung, pinggang dan kaki, hal ini dapat mengganggu aktifitas pekerja. Kegiatan ini pendekatan edukasi yang mengintegrasikan teori akademik dengan praktik fisioterapi dalam Kegiatan kepada Masyarakat (PkM), dengan teknik penelitian observasi secara langsung proses bekerja garmen. Pengumpulan data dilakukan dengan cara melihat aktivitas pekerja, selanjutnya dilakukan penentuan sudut dari posisi bagian tubuh pekerja tersebut. Metode analisis data yang digunakan dalam penelitian ini adalah metode REBA (Rapid Entire Body Assesment) dan NBM (Nordic Body Map). Berdasarkan hasil penelitian yang dilakukan pada proses cutting pada garmen disimpulkan bahwa berdasarkan hasil NBM terhadap proses pekerja garmen diantaranya bidang cutting, bidang produksi dan bagian finishing. Di dapat pekerja bagian cutting sering mengalami keluhan musculoskeletal disorder dengan score 58. Score Reba pada proses bagian cutting diperoleh angka 7 yang berarti berisiko tinggi mengalami cedera / gangguan otot dan harus segera diterapkan perubahan untuk perbaikan. didapatkan skor reba sebesar 7 , yang memiliki level risiko sedang. Dengan memiliki level tindakan di angka 2 dari 0-4 yang artinya perlu tindakan tersebut perlu secepatnya dievaluasi lebih lanjut
APA, Harvard, Vancouver, ISO, and other styles
44

Pimonov, M. V., D. A. Romanov, and H. Chen. "The structure of the surface layer of 0.4C-1Cr structural steel after finishing stages of machining by cutting." Physics and Chemistry of Materials Treatment 4 (2020): 17–30. http://dx.doi.org/10.30791/0015-3214-2020-4-17-30.

Full text
Abstract:
The microstructure and local fields of internal stresses arising in the surface layer of 0.4C-1Cr structural alloy steel (40X type) samples after machining by cutting are investigated. Before treatment, the samples were subjected to recrystallization annealing at a temperature of 600°C for 60 min. Sample processing was carried out in three modes: finishing (mode 1), sequential combination of roughing and semi-finishing (mode 2), sequential combination of roughing, semi-finishing and finishing (mode 3). With 1, 2 and 3 processing modes, chips are removed to a depth of 0.25, 1.5 and 1.75 mm, respectively. Transmission electron microscopy was used to determine the amplitude of the curvature-torsion of the crystal lattice of the forming phases, the excess density of dislocations, and the amplitude of internal stresses. It has been established that the main phase components in 40X steel after cutting are lamellar pearlite with different morphology and fragmented and unfragmented ferrite.
APA, Harvard, Vancouver, ISO, and other styles
45

Bahri, Haithem, Victor Songmene, Jules Kouam, Agnes Marie Samuel, and Fawzy Hosny Samuel. "CNC Edge Finishing of Granite: Effect of Machining Conditions on Part Quality, Cutting Forces, and Particle Emissions." Materials 14, no. 21 (2021): 6496. http://dx.doi.org/10.3390/ma14216496.

Full text
Abstract:
Edge finishing is a shaping process that is extremely important in the granite and marble processing industries. It does not only shape the edge but also makes it shiny and durable. However, this process generates dust (fine and ultrafine particles) that can have a significant impact on air quality in the workshop and can put workers’ health at risk. While environmental requirements and occupational health and safety regulations are becoming increasingly stringent, at the same time, industries must continue to produce quality parts at competitive prices. The purpose of this study was to examine the surface quality, the cutting forces, and the emission of fine (FP) and ultrafine (UFP) particles during wet and dry edge finishing of granite edges as a function of the machining parameters and abrasive grit sizes. Three machining operations were investigated: roughing, semi-finishing, and finishing, using diamond abrasives (with grit sizes 45, 150, 300, 600, 1500, and 3000). The experiments were carried out on two granites, one being black and the other white. The tested spindle speeds ranged from 1500 rpm to 3500 rpm and the feed rates from 500–1500 mm/min. It was found that roughing operations produce more fine particles while finishing operations produce more ultrafine particles. These particle emissions, as well as the part quality and the cutting forces are strongly dependent on cutting speed and on the grit size of the abrasive used.
APA, Harvard, Vancouver, ISO, and other styles
46

Lin, Ji Shun. "Virtual Manufacturing of Straight Bevel Gear Based on Pro/E Wildfire." Advanced Materials Research 1044-1045 (October 2014): 902–5. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.902.

Full text
Abstract:
Making use of function of NC programme provided by Pro/NC, aiming at general NC milling machine and using general milling cutter, this thesis attempts to establish the tool path of straight bevel gear’s finishing machining and then put forward the idea of processing piece by piece. In this way, “over cutting” and “short cutting” can be avoided and the precision of process can be improved. Finally, the accuracy of product designing and manufacture can be tested by post-processing of numerical control program of straight bevel gear’s finishing processing with the VERICUT’s simulating.
APA, Harvard, Vancouver, ISO, and other styles
47

Jang, Eun-Suk, and Chun-Won Kang. "Influence of surface finishing of hardwood cross-section on sound absorption performance." BioResources 17, no. 2 (2022): 2874–83. http://dx.doi.org/10.15376/biores.17.2.2874-2883.

Full text
Abstract:
This study aimed to evaluate the sound absorption performance depending on surface finishing of the hardwood cross-section. The sound absorption performance of wood cross-sections was evaluated after band saw cutting, sandpaper polishing, and staining. The sound absorption performance was best following the band saw cutting and no other treatment. On the other hand, stain blocked the pores and decreased the sound absorption performance. This study suggests that finishing methods that preserve the integrity of vessels need to be considered when using wood as a sound-absorbing material.
APA, Harvard, Vancouver, ISO, and other styles
48

Morais, Helder, Amir Baraati, Fernando Carlos, Erika Davim, and Ricardo Torcato. "Development of a CNC Grinding Process for the Manufacturing of Crystal Glass Products." Key Engineering Materials 957 (October 2, 2023): 3–11. http://dx.doi.org/10.4028/p-g5vmbe.

Full text
Abstract:
Traditional manufacturing and finishing operations of crystal products use intensive specialized labour resulting in high cycle times and production costs. It is intended to investigate the applicability of automated finishing technology, namely grinding in a CNC machining centre, with consideration of material’s characteristics and geometric variability to crystal processing. A case study will be presented, involving cutting tools development, cutting parameters optimization, CAM programming of machining strategies and toolpaths, product clamping systems and finally product machining and quality control that is being implemented at Vista Alegre Atlantis company.
APA, Harvard, Vancouver, ISO, and other styles
49

Yin, Shao Hui, Yu Wang, Han Huang, Yong Jian Zhu, Yu Feng Fan, and Yue Chen. "Effects of Horizontal Vibration Assistance on Surface Roughness in Magnetic Abrasive Finishing." Advanced Materials Research 76-78 (June 2009): 246–51. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.246.

Full text
Abstract:
This paper investigates the effect of horizontal vibration assistance on surface roughness in magnetic abrasive finishing, and the material removal mechanism associated. The experiments on vibration-assisted finishing have clearly indicated that the improvement of surface roughness is mainly attributed to the cross-cutting effect of abrasives.
APA, Harvard, Vancouver, ISO, and other styles
50

Trinh, Van-Long. "A Review of the Surface Roughness Prediction Methods in Finishing Machining." Engineering, Technology & Applied Science Research 14, no. 4 (2024): 15297–304. http://dx.doi.org/10.48084/etasr.7710.

Full text
Abstract:
The desired Surface Roughness (SR) can be achieved via general machining methods by using a cutting tool to remove a material layer on the workpiece surface. Cutting Parameters (CP), cutting tool properties, and workpiece properties must be considered. The finishing machining methods that can be applied to produce the desired SR are turning, milling, grinding, boring, and polishing. The technological parameters must be tightly combined in the Machining Process (MP). The CP selection presents some issues regarding time, cost, and practical skill when considering different cutting methods, cutting tools, and workpiece materials. SR predicting methods of machined parts have the advantages of shortening the time of CP selection, reducing machining cost, and bringing the desired SR. This paper reviews the recent methods followed in predicting the SR of the MPs. The SR prediction methods will bring many benefits for MP, such as improved SR, reduced cost, improved cutting conditions, and enhanced quality.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!