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Journal articles on the topic 'Plastic machining'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Kumar, Raman, Jasgurpreet S. Chohan, and Satbir S. Sehgal. "Non-Conventional Technique of Machining and Metallization of Polymer Components." Recent Patents on Mechanical Engineering 13, no. 4 (2020): 378–86. http://dx.doi.org/10.2174/2212797613999200529095224.

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Background: Machining and metal coating of plastics are essential requirements as plastics are overtaking other engineering materials nowadays. Metallization improves product life as well as enhances its surface and mechanical properties. The machining (i.e., cutting, drilling, boring) of plastic parts with conventional processes is difficult as the dimensional accuracy and surface finish cannot be obtained from existing methods or/and needs multiple operations to acquire the surface finish needed. The coating of plastic materials is also a complex method using chemicals and electricity. An in

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2

Gawali, Akshay C. "Machining of plastic parts." International Journal of Research in Engineering 3, no. 1 (2021): 05–06. http://dx.doi.org/10.33545/26648776.2021.v3.i1a.31.

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Horváth, Richárd, Róbert Gábor Stadler, and Kristóf Andrásfalvy. "Investigation of Milling of Carbon Fiber Reinforced Plastic." Acta Materialia Transylvanica 2, no. 2 (2019): 99–104. http://dx.doi.org/10.33924/amt-2019-02-06.

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Abstract The use of fiber-reinforced plastics has increased significantly in the past decades. Consequently, the demand for finishing and machining of such materials has also escalated. During machining, the fiber-reinforced materials exhibit machining problems dissimilar to the problems of metals. These are fiber pull-out, fiber breakage in the cutting zone, matrix smearing and delamination. The purpose of this experiment is to investigate the characteristics of the resultant force (Fe) dur-ing the milling of carbon fiber reinforced plastic as a function of input machining parameters. For the

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Cong, W. L., Z. J. Pei, Q. Feng, T. W. Deines, and C. Treadwell. "Rotary ultrasonic machining of CFRP: A comparison with twist drilling." Journal of Reinforced Plastics and Composites 31, no. 5 (2012): 313–21. http://dx.doi.org/10.1177/0731684411427419.

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Drilling is involved in many applications of carbon fiber–reinforced plastic composite. Twist drilling is widely used in industry. Rotary ultrasonic machining has been successfully tested to drill holes in carbon fiber–reinforced plastic. However, there are no reports on comparisons between rotary ultrasonic machining and twist drilling of carbon fiber-reinforced plastic. This paper compares rotary ultrasonic machining and twist drilling of carbon fiber–reinforced plastic in six aspects (cutting force, torque, surface roughness, delamination, tool life, and material remove rate). Experimental

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Vasilko, Karol. "Machining with Plastic Cutting Wedge." Manufacturing Technology 15, no. 5 (2015): 951–57. http://dx.doi.org/10.21062/ujep/x.2015/a/1213-2489/mt/15/5/951.

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6

Yashiro, Shigeki, and Keiji Ogi. "Experimental study on shear-dominant fiber failure in CFRP laminates by out-of-plane shear loading." Journal of Composite Materials 53, no. 10 (2018): 1337–46. http://dx.doi.org/10.1177/0021998318801454.

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Understanding the shear behavior and resulting fiber failure of fiber-reinforced plastics is required for better prediction of their behavior during the machining process, but knowledge regarding the shear strength of fiber failure is limited. In this study, out-of-plane shear tests were conducted to observe the shear behavior of carbon fiber-reinforced plastic laminates subjected to high shear stress exceeding the shear strength of matrix failure. The longitudinal fibers in carbon fiber-reinforced plastic unidirectional laminates were cut by shear loading without severe internal damage and th

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7

Chen, Guang Jun, Xian Li Liu, and Cai Xu Yue. "Study on Causes of Material Plastic Side Flow in Precision Hard Cutting Process." Advanced Materials Research 97-101 (March 2010): 1875–78. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.1875.

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There are many special cutting disciplines needed to research in precision hard cutting process. The plastic side flow on machining surface influences machining surface roughness great. The mathematical model of hump height for surface plastic side flow is built based on the model of precision hard cutting and forming mechanism of surface plastic side flow is analyzed. Effect of cutting feed on the maximum scallop height of machining surface is researched and microscopic observation of surface topography is made through the hard cutting experiment. In certain conditions, the machining surface

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8

Du, Jin, and Zhan Qiang Liu. "Influence of Cutting Speed on Plastic Deformation in Machined Surface of FGH95 PM Superalloy." Applied Mechanics and Materials 148-149 (December 2011): 163–68. http://dx.doi.org/10.4028/www.scientific.net/amm.148-149.163.

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FGH95 nickel-based superalloy is produced by powder metallurgy (PM) processing for aerospace applications. Due to lower thermal conductivity, work hardening tendency during machining, and intensive adhesion to the surface of the tooling under operation, machining of FGH95 alloy is a significant challenges. The FGH95 machining process will induce substantial amount of plastic deformation in the surface and subsurface of the workpiece. A theoretical model is developed to predict the plastic deformation in machined surface of FGH95 superalloy. Experimental results are also applied to analyze the

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9

Pini, B. E., E. A. Vetrova, and Y. V. Maximov. "Optimization of combined cutting and surface plastic deformation." Izvestiya MGTU MAMI 8, no. 2-2 (2014): 80–84. http://dx.doi.org/10.17816/2074-0530-67692.

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There is considered the possibility of optimizing the process of combined machining by cutting and surface plastic deformation using the new solutions on design of cutting and plastic deformation of parts of the device for combined machining.

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Islam, Sumaiya, Raafat N. Ibrahim, and Raj Das. "Study of Abrasive Wear Mechanism through Nano Machining." Key Engineering Materials 462-463 (January 2011): 931–36. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.931.

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The objective of this paper is to understand the abrasive wear mechanism for producing a nano scale groove on a bulk material through nano machining. A nano indenter equipped with a nano scratching attachment was used for nano machining operation and in situ observation of the machined surfaces. Two different tools (Berkovich and Conical) with the same tip radius (100nm) but different edge geometries were used to machine both Copper and Nickel coatings. It was found that the percentage of elastic recovery was lower for Cu than Ni during this nano machining operations. Hence, the deformation me

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11

Kouznetsov, V. A., and P. V. Shestavin. "Effectiveness increase of burnishing and mixed processing by the variation of tool location method." Izvestiya MGTU MAMI 1, no. 2 (2007): 174–77. http://dx.doi.org/10.17816/2074-0530-69683.

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The paper examines the tools with several working surfaces which are used for various types of machining illustrated by cutter for combined machining and plastic deformation, notably the cutter with round plate, cutter with multisurface plate, cutter with raised corner, which may be turned about 3 axis. Besides, the device for combined edge cutting machining and plastic deformation is examined. The paper presents the optimal ways of machining element location when hardened and non-hardened steel machining, and the possibility of phase transformation implementations in the surface layer at high

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Yin, Cheng, Rui Wang, Jeong Kim, Sang Lee, and Sang Mun. "Ultra-High-Speed Magnetic Abrasive Surface Micro-Machining of AISI 304 Cylindrical Bar." Metals 9, no. 5 (2019): 489. http://dx.doi.org/10.3390/met9050489.

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The ultra-high-speed magnetic abrasive machining (UHSMAM) process is a surface improvement technique, which has been widely used to minimize the surface accuracy and change the precision morphology of difficult-to-machine materials. Surface integrity plays an important role in the machining process, because it is used to evaluate the high stress and the loaded components on the machined surface. It is important to evaluate the plastically deformed layers in ultra-precision machining surface of material. However, the usual plastic strains in the ultra-precision machining surface are significant

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13

Zhu, Zhaolong, Dietrich Buck, Jinxin Wang, Zhanwen Wu, Wei Xu, and Xiaolei Guo. "Machinability of Different Wood-Plastic Composites during Peripheral Milling." Materials 15, no. 4 (2022): 1303. http://dx.doi.org/10.3390/ma15041303.

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The aim of this study was to improve the machinability of wood-plastic composites by exploring the effects of different wood-plastic composites on machinability. In particular, the effects of milling with cemented carbide cutters were assessed by investigating cutting forces, cutting temperature, surface quality, chip formation, and tool wear. The cutting parameters determined to yield an optimal surface quality were rake angle 2°, cutting speed 9.0 m/s, feed per tooth 0.3 mm, and cutting depth 1.5 mm. In these optimized milling conditions, the wood-plastic composite with polypropylene exhibit

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Gurusamy, Muralimohan, and Balkrishna C. Rao. "A Comprehensive Review of Large-Strain-Extrusion Machining Process for Production of Fine-Grained Materials." Crystals 13, no. 1 (2023): 131. http://dx.doi.org/10.3390/cryst13010131.

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Bulk nanostructured metals and alloys are finding increasing structural applications due to their superior mechanical properties. The methods that rely on the severe plastic deformation technique for effecting microstructural refinement through imposing large strains are utilized mostly to produce nanostructured materials. The machining process has been demonstrated as a simple process for severe plastic deformation by imposing large strains through a single pass of the cutting tool where strains in a range of 1–15 can be imposed for a variety of materials by varying the cutting conditions and

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15

Krimpenis, Agathoklis A., and John G. Tsakanikas. "On Systematic CAD/CAM Modeling of Blow Molds for Plastic Bottles." Solid State Phenomena 261 (August 2017): 448–55. http://dx.doi.org/10.4028/www.scientific.net/ssp.261.448.

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A systematic and detailed approach in design and manufacturing of blow molds for bottles made of PET and PP plastic material with CAD/CAM software tools is presented, as many production errors and product deficiencies stem from inaccurate and imprecise tooling. Apart from high mold accuracy, proper planning also includes the minimization of mold machining costs, which mainly derives from CNC machining time and cutting tool wear. Blow mold design and manufacturing revolves around two major axes: (a) mold material and (b) machining parameter values. The former is critical in terms of production

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Pramanik, Alokesh, M. N. Islam, Animesh Basak, and Guy Littlefair. "Machining and Tool Wear Mechanisms during Machining Titanium Alloys." Advanced Materials Research 651 (January 2013): 338–43. http://dx.doi.org/10.4028/www.scientific.net/amr.651.338.

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This paper investigates the machining mechanism of titanium alloys and analyses those understandings systematically to give a solid understanding with latest developments on machining of titanium alloys. The chip formation mechanism and wear of different cutting tools have been analyzed thoroughly based on the available literature. It is found that the deformation mechanism during machining of titanium alloys is complex and it takes place through several processes. Abrasion, attrition, diffusion–dissolution, thermal crack and plastic deformation are main tool wear mechanisms.

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17

Thasana, Wiroj, and Weerachart Wetchakama. "Prediction of Gloss in Plastic Injection Parts Based on 3D Surface Roughness from Virtual Machining with Artificial Neural Networks." International Journal of Automation Technology 16, no. 2 (2022): 138–48. http://dx.doi.org/10.20965/ijat.2022.p0138.

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The gloss is one of the most important characteristics of plastic injection molding parts, whereby the molding process needs to consider the influence of the three main factors such as the surface roughness of the cavity, chemical properties of the plastic, and injection parameters. The surface roughness of the plastic injection mold was considered for the gloss that occurs with the parts of the plastic injection processes. Therefore, the objective of this research is to predict the gloss for plastic injection parts based on the artificial neural network method from the input parameters of 3D

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18

Hatvalne, Sarang, and Arakerimath Rachayya. "Performance study of different EDM Electrode Materials for machining of honeycomb cavities of plastic injection molds." International Journal of Current Engineering and Technology 12, no. 02 (2022): 144–46. http://dx.doi.org/10.14741/ijcet/v.12.2.7.

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Electro Discharge Machining (EDM) is an extremely prominent machining process among newly developed non - traditional machining techniques for “difficult to machine” conducting materials such as heat treated tool steels, composites etc. In EDM, the material removal of the electrode is achieved through high frequency sparks between the tool and the work-piece immersed into the dielectric. The Material Removal Rate (MRR), Tool Wear Rate (TWR) and surface integrity are some of the important performance attributes of the EDM process. This is widely used in machining intricate cavities in Aluminum

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19

Ramulu, M., S. Kunaporn, D. Arola, M. Hashish, and J. Hopkins. "Waterjet Machining and Peening of Metals." Journal of Pressure Vessel Technology 122, no. 1 (1999): 90–95. http://dx.doi.org/10.1115/1.556155.

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An experimental study was conducted to determine the influence of high-pressure waterjet (WJ) peening and abrasive waterjet (AWJ) machining on the surface integrity and texture of metals. A combination of microstructure analysis, microhardness measurements, and profilometry were used in determining the depth of plastic deformation and surface texture that result from the material removal process. The measurement and evaluation of residual stress was conducted with X-ray diffraction. The residual stress fields resulting from treatment were analyzed to further distinguish the influence of materi

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20

Singh, Rajbir, and Sachin Dhull. "Use of Plastic Waste in Flexible Pavements: A Review." International Journal of Research 11, no. 10 (2024): 128–36. https://doi.org/10.5281/zenodo.13968528.

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<em>Plastic has become a constant element in our lives. It's everywhere: product packaging, cosmetic ingredients, textiles, mobile phones, etc. It's even in the chewing gum you might be chewing on right now! Its omnipresence is such that many would find the mere fact of giving it up a difficult task. Reducing the consumption of plastics therefore requires not only a change in habits, but also a change of mindset. Safe disposal of waste plastic is a serious environmental problem. In this paper the authors have listed the use of plastic in flexible pavements and brief overview of abras

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21

Han, Jide, Lihua Li, and Wingbun Lee. "Machining of Lenticular Lens Silicon Molds with a Combination of Laser Ablation and Diamond Cutting." Micromachines 10, no. 4 (2019): 250. http://dx.doi.org/10.3390/mi10040250.

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Lenticular lenses are widely used in the three-dimensional display industry. Conventional lenticular lens components are made of plastics that have low thermal stability. An alternative is to use glass to replace plastic as the lenticular lens component material. Single crystal silicon is often used as the mold material in the precision glass molding process. It is, however, difficult to fabricate a lenticular lens silicon mold that has a large feature size compared to the critical depth of cut of silicon. In order to solve the problems of machining lenticular lens silicon molds using the conv

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22

Khandozhko, Alexandr, Andrey Shcherbakov, Leonid Zakharov, and Alexsandr Alen’kin. "Technical support of plastic product machining quality." Science intensive technologies in mechanical engineering 2020, no. 6 (2020): 37–41. http://dx.doi.org/10.30987/2223-4608-2020-6-37-41.

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The investigation results of plastic cutting are shown. The results of single-factor and multi-factor experiments on plastic cutting by multi-toothed milling cutters are stated. There are shown empirical equations of the roughness parameter correlation of the surface Ra and the height of the barb h from cutting modes: feed, speed and tooth number in a milling cutter.

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Caggiano, Alessandra. "Machining of Fibre Reinforced Plastic Composite Materials." Materials 11, no. 3 (2018): 442. http://dx.doi.org/10.3390/ma11030442.

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Kaneeda, Toshiaki, Seiichi Yokomizo, Akio Miwa, Kazuta Mitsuishi, Yoshiyuki Uno, and Hiroyuki Morioka. "Biochemical machining — biochemical removal process of plastic." Precision Engineering 21, no. 1 (1997): 57–63. http://dx.doi.org/10.1016/s0141-6359(97)80001-3.

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25

Заостровский, А., A. Zaostrovskiy, А. Приемышев, A. Priyomyshev, Ю. Зубарев, and Yu Zubarev. "Peculiarities in technology of coal-plastic machining." Science intensive technologies in mechanical engineering 1, no. 5 (2016): 30–33. http://dx.doi.org/10.12737/18712.

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At present polymeric composite materials (PCM) substitute more and more wider metal in various branches of mechanical engineering. But the mechanical engineering of such materials with an edge tool causes considerable difficulties, as it differs in principle from common steel and alloy machining. A significant factor in choice of cutting modes and tool application and, as a consequence of a chip forming at PCM machining is a fiber orientation taking into account a cutting direction. The paper reports the results of researches in edge working by different tools with antifriction coal-plastic.

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Sato, Hiromoto, Yasuo Kondo, and Kodai Bunya. "Applicability of soft-machining technique on fine hole machining in plastic materials." Proceedings of Ibaraki District Conference 2017.25 (2017): 706. http://dx.doi.org/10.1299/jsmeibaraki.2017.25.706.

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27

Vetrova, E. A., P. A. Lebedev, and A. S. Adeyev. "Advantages of using of a device for combined machining and surface plastic deformation with specified rolling force when machining of nonrigid parts such as a hollow cylinder." Izvestiya MGTU MAMI 7, no. 1-2 (2013): 124–28. http://dx.doi.org/10.17816/2074-0530-68088.

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28

Azhar, Muammar Faiq, Che Hassan Che Haron, Jaharah Abdul Ghani, and Nurul Hayati Abdul Halim. "Surface Integrity of Inconel 718 under Cryogenic and Dry Cutting Conditions." Jurnal Kejuruteraan 36, no. 3 (2024): 1135–45. http://dx.doi.org/10.17576/jkukm-2024-36(3)-24.

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Inconel 718 is a nickel-based alloy that has been developed with superior mechanical strength, creep resistance, and corrosion, as well as erosion resistance at temperatures above 649 ˚C. It is suitable to be used for aircraft engine components such as turbine discs. However, it also has low heat conductivity and the presence of hard carbide particles in its alloy worsens the machining conditions with high cutting temperature, and high shear force and promotes work hardening. Thus, this study aims to evaluate the surface integrity of Inconel 718 in terms of surface roughness, plastic deformati

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Fan, Ning, Xiang Bo Ze, and Xiu Li Fu. "Milling Characteristic of Plastic Profiles Manufacturing." Advanced Materials Research 230-232 (May 2011): 522–25. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.522.

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Groove milling is an important working procedure in plastic profiles manufacturing. Rational milling parameters have great effect on machining efficiency and quality. The milling characteristic of plastic profiles is investigated by cutting experiments in the present paper. The cutting forces increase with the feed speed increase. The vibration occurs easily in transverse cutting because of the low stiffness of the plastic profiles. When the feed speed is large, the workpiece material would produce softening and daubing phenomena appears subsequently on the workpiece surface which affects mach

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Azuddin, M., Z. Taha, and Imtiaz Ahmed Choudhury. "Micro Plastic Part Fabrication Using Custom Made Vertical Injection Molding Machine." Advanced Materials Research 197-198 (February 2011): 1337–45. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.1337.

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This study focuses on fabrication of a micro plastic part using custom made vertical injection molding machine. Electrical discharge machining (EDM) and micro mechanical machining was used to fabricate micro shape cavity on aluminum mold. The mold was embedded with Polymethyl Methacrylate (PMMA) window to observe the behavior of plastic melt flow during injection. The custom made vertical injection molding machine has capabilities to produce a micro plastic part. But, the filling behavior observation was contrast with MoldFlow analysis software. The flashing problem occurs at each molded micro

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János, Líska, and Kodácsy János. "Drilling of Glass Fibre Reinforced Plastic." Advanced Materials Research 472-475 (February 2012): 958–61. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.958.

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Nowadays composite materials are used in many industrial areas. The main application of these is the aircraft industry. Problematic points with machining of composite materials are tool wear, tool life, delamination and temperature during machining of polymer composite materials. Paper focuses on investigation of delamination at drilling of glass fibre reinforced composites. Experiments were planned on the base so called design of experiment - DOE. We observed the evolution of delamination at investigations, when we combined 4 different variables (vc, fz, tool, cooling system). We investigated

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Mitaľová, Zuzana, Dagmar Klichová, František Botko, Juliána Litecká, Radoslav Vandžura, and Dušan Mitaľ. "Green Machining of NFRP Material." Machines 11, no. 7 (2023): 692. http://dx.doi.org/10.3390/machines11070692.

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Nowadays, great emphasis is placed on environmental aspects of production processes with focus to lower carbon footprint. Natural fibre-reinforced plastics (NFRP) show potential for application in many fields of industry due their specific properties. Machining of NFRP-based materials is meeting several problems arising from non-homogenous structure as well as plastic-based matrix. Machining of NFRP using conventional technologies meets limitations due to the properties and geometry of the tools. Abrasive water jet (AWJ) machining can solve some of the problems machining NFRP materials. The pr

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Wu, Wen Ge, Si Qin Pang, and Zhan Qiang Liu. "Analysis of Reversible Fine Machining Sequence Effect on Surface Integrity." Key Engineering Materials 315-316 (July 2006): 391–95. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.391.

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Reversible cutting method is a new research thesis proposed to shorten processing route, decrease tool number and handling time, increase machining efficiency. The aim of the presented work was to analysis the effects of reversible fine machining sequence on surface integrity in machined layer. Nonlinear hardening during reverse loading and the change of the Bauschinger effect factor with plastic strain were properly taken into account. In experiments, the residual stresses have been measured using the X-ray diffraction technique (at the surface of the workpiece and in depth). Moreover, micro-

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KUZNETSOV, I. S., N. V. TITOV, V. N. LOGACHEV, and N. S. CHERNYSHOV. "FOREIGN EXPERIENCE IN ELECTRIC SPARK MACHINING." Tekhnicheskiy servis mashin 62, no. 2 (2024): 85–90. http://dx.doi.org/10.22314/2618-8287-2024-62-2-85-90.

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Currently, there are actively developing various additive technologies for printing metal products. Among a fairly large number of technologies, layer-by-layer laser melting of metal powder can be distinguished. Foreign scientists claim that the parts manufactured using this technology have several disadvantages: high surface roughness, high undulation, low durability. Foreign researchers propose to eliminate the shortcomings by the combined use of electric spark processing and surface plastic deformation. (Research purpose) The research purpose is analyzing the available scientific work and e

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John, KM, S. Thirumalai Kumaran, Rendi Kurniawan, Ki Moon Park, and JH Byeon. "Review on the methodologies adopted to minimize the material damages in drilling of carbon fiber reinforced plastic composites." Journal of Reinforced Plastics and Composites 38, no. 8 (2018): 351–68. http://dx.doi.org/10.1177/0731684418819822.

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The applications of carbon fiber reinforced plastic materials have increased widely in the fields of aerospace, automotive, maritime, and sports equipment because of their excellent mechanical properties. Machining of carbon fiber reinforced plastics has a considerably more complex effect on drilling qualities than machining of conventional metals and their alloys due to the nonlinear, inhomogeneous, and abrasive nature of CFRPs. This article addresses the methodologies that have been adopted to minimize the material damages in drilling of polymeric composite materials. Key papers are reviewed

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Martinkovič, Maroš, and Peter Pokorný. "Analysis of Local Plastic Deformation of Machined Surface." Defect and Diffusion Forum 368 (July 2016): 7–10. http://dx.doi.org/10.4028/www.scientific.net/ddf.368.7.

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Technological processes of machining lead to plastically deformation of workpieces. Therefore it is needful to know influence of machining to machined material. The area of plastically deformation caused by friction of tool to machined surface was analysed. Local strain in structure was estimated by measurement of deformation of grains on metallographic cut using stereology. Local plastic deformation in deformation zone around the surface of drilled holes, local plastic deformation in deformation zone near the surface of milled workpiece and local plastic deformation near the surface of turned

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Deng, Wen Jun, Wei Xia, Yong Li, Zhen Ping Wan, and Yong Tang. "Large Plastic Deformation and Ultra-Fine Grained Structures Generated by Machining." Key Engineering Materials 375-376 (March 2008): 21–25. http://dx.doi.org/10.4028/www.scientific.net/kem.375-376.21.

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Microstructure of machined copper chips at very low velocity was characterized by transmission electron microscopy. The structure of the machined chip produced by reasonable combinations of machining parameters is virtually entirely occupied by isolated equiaxed submicron grains of 100~300nm in size with high-angle boundaries. A finite element model was developed to study large plastic deformation in plain orthogonal machining copper. The numerical results show most of the grain refinement associated with the formation of ultra-fine grained chip may be attributed to the large shear strain impo

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Ma, Bao Li, Shi Ming Ji, and Da Peng Tan. "Soft Abrasive Flow Machining." Applied Mechanics and Materials 159 (March 2012): 262–66. http://dx.doi.org/10.4028/www.scientific.net/amm.159.262.

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Soft Abrasive Flow Machining (SAFM) was presented as a new finishing process about the existing problems that the irregular surface of plastic mould was polishing difficultly. The paper first introduced the working principle and feature of SAMF. Secondly, the main influences of SAFM were analyzed. The problem of technology and theory urgent to settle was discussed. At the last, the technology development of SAFM was expected.

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Prokofiev, Alexander, and Aleksandr Steshkov. "ADVANCED METHODS OF MACHINING INTERNAL THREADS." Transport engineering 2022, no. 6 (2022): 4–10. http://dx.doi.org/10.30987/2782-5957-2022-6-4-10.

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The paper deals with the problems of machining internal threads by deformation with the use of burnishers and combined taps. Internal threads were cut with taps until recently, which is accompanied by a number of significant drawbacks, and they are most evident when obtaining threaded holes in highly plastic materials. In these cases, it is advisable to machine threads by plastic deformation with forming taps. Some variants of tool structures for improving the quality of the internal thread by deformation and combined machining are considered, and even dependencies for defining the parameters

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Unde, Prasad D., M. D. Gayakwad, N. G. Patil, R. S. Pawade, D. G. Thakur, and P. K. Brahmankar. "Experimental Investigations into Abrasive Waterjet Machining of Carbon Fiber Reinforced Plastic." Journal of Composites 2015 (September 29, 2015): 1–9. http://dx.doi.org/10.1155/2015/971596.

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Abrasive waterjet machining (AWJM) is an emerging machining process in which the material removal takes place due to abrasion. A stream of abrasive particles mixed with filtered water is subjected to the work surface with high velocity. The present study is focused on the experimental research and evaluation of the abrasive waterjet machining process in order to evaluate the technological factors affecting the machining quality of CFRP laminate using response surface methodology. The standoff distance, feed rate, and jet pressure were found to affect kerf taper, delamination, material removal

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Liu, Zhan Qiang, Xing Ai, and Zhao Hui Wang. "A Comparison Study of Surface Hardening by Grinding Versus Machining." Key Engineering Materials 304-305 (February 2006): 156–60. http://dx.doi.org/10.4028/www.scientific.net/kem.304-305.156.

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This paper presents a comparison study of surface hardening by grinding versus machining. The technological, economical and ecological merits of machining hardening and grind-hardening process for steels are described. The mechanisms of machining hardening and grind-hardening of steels are investigated and compared. The phase transformation, plastic deformation and white layer generation are the principal factors contributing to the hardened surface layer by machining and grinding. The influences of the process parameters on the penetrated hardness are given for both grind-hardening and machin

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Işık, Birhan, and Erhan Altan. "Cutting Forces in Orthogonal Turning of Unidirectional Glass Fibre Reinforced Plastic Composites." Advanced Composites Letters 20, no. 1 (2011): 096369351102000. http://dx.doi.org/10.1177/096369351102000101.

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Experimental investigation of machining is cost prohibitive. The number of parameters to control, the exhaustive material characterisation and the time consuming procedure to determine the mechanical responses like cutting forces restricts experimental studies. In this context, mathematical modelling can be a feasible tool for studying the various responses in machining. This paper presents an attempt to investigate orthogonal machining of unidirectional Glass Fibre Reinforced Plastic Composite (UD-GFRP) materials using mathematical modelling. The model entailing fibre orientation, shear stren

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Naila Gasanova, Naila Gasanova, Nijat Gaytaranov Nijat Gaytaranov, and Nijat Gojayev Nijat Gojayev. "RESEARCH ON THE TECHNOLOGY OF PREPARING PLASTIC AND THREADED COMPONENTS USING 3D PRINTING OR ADDITIVE MANUFACTURING." ETM - Equipment, Technologies, Materials 14, no. 02 (2023): 154–59. http://dx.doi.org/10.36962/etm14022023-154.

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Threaded components play a crucial role in ensuring the safety and reliability of systems by joining components together. Proper selection of thread type and size, ensuring proper machining and storage of components, and addressing potential issues such as leakage, vibration, and misalignment all play a special role. It is known that there is a big difference in the nature of the destruction of metal and plastic threaded connections, in particular, when the nut is made of plastics, and the bolt is made of steel, or vice versa. In this regard, at present there is no consensus in assessing the s

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Bałon, Paweł, Edward Rejman, Robert Smusz, and Bartłomiej Kiełbasa. "High speed machining of the thin-walled aircraft constructions." Mechanik 90, no. 8-9 (2017): 726–29. http://dx.doi.org/10.17814/mechanik.2017.8-9.105.

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Machining operations of thin-walled elements generate a lot of production process issues related to deformations and elastic and plastic displacements of the workpiece. Due to displacements of the milled workpiece, vibrations can occur, and thus, geometric errors may occur on surface in the structure of the workpiece. Furthermore, plastic deformation can also cause shape problems and be a source of internal stresses in the surface layer, which are highly difficult to remove and lead to deformation of the workpiece after machining. Consequently, this leads to an increase in the manufacturing co

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Yang, Yong, and Ming Li. "Establishment of Mathematical Relation Model between Dislocation Motion and Machining Deformation of Titanium Alloy Monolithic Component." Advanced Materials Research 820 (September 2013): 212–15. http://dx.doi.org/10.4028/www.scientific.net/amr.820.212.

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According to dislocation dynamics, a distribution equation of mobile dislocations during the deformation of monolithic component was established. Slip deformation was solved through dislocation density and Burgers vector, and then the mathematical relationship between slippage and plastic deformation was established. Thus the mathematical relation model between dislocations and the machining distortion of monolithic component was established by plastic deformation as intermediate variable. It is shown that the machining distortion of monolithic component is upward embossment, and its maximum d

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Hakimi, Ismail Mahamad, S. Sharif, and Denni Kurniawan. "Laminate Orientation Effect on Drilling of Carbon Fiber Reinforced Plastic Composites." Applied Mechanics and Materials 315 (April 2013): 768–72. http://dx.doi.org/10.4028/www.scientific.net/amm.315.768.

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Carbon fiber reinforced plastic (CFRP) composites are often used in combination with other materials, requiring it to be machined during fabrication of a structure. Drilling as the most common machining process of CFRP is complex often results in delamination of the composites. The complexity is contributed by CFRP composites fiber orientation which can be of unidirectional or quasi-isotropic type depending on the applications. This study reviews the machinability of CFRP composites by considering fiber orientation and machining conditions used during drilling. Their relation with machining th

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Sha, Zhi Hua, Fang Wang, and Sheng Fang Zhang. "Drilling Simulation of Carbon Fiber Reinforced Plastic Composites Based on Finite Element Method." Advanced Materials Research 690-693 (May 2013): 2519–22. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2519.

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Carbon fiber reinforced plastics are widely used in aerospace and aircraft industries because of their remarkable advantages such as lightweight and high strength. However, as their properties are different with metals, those materials are difficult to machine in conventional ways, the machining defects may appear and the machining accuracy and surface quality are difficult to guarantee. Oriented to drilling of carbon fiber reinforce plastics, a machining model based on finite element method are presented in this paper, the drilling simulation of carbon fiber reinforced plastics using Deform-3

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Yaroslavtseva, N., and V. Yaroslavtsev. "Precision Machining When Cutting with Leading Plastic Deformation." Science and Education of the Bauman MSTU 17, no. 04 (2017): 33–43. http://dx.doi.org/10.7463/0417.0001129.

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Ikeno, Junichi, and Junji Kanehagi. "B44 Study on laser machining of a plastic." Proceedings of The Manufacturing & Machine Tool Conference 2014.10 (2014): 135–36. http://dx.doi.org/10.1299/jsmemmt.2014.10.135.

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Vu, Viet, Yan Beygelzimer, Roman Kulagin, and Laszlo Toth. "Mechanical Modelling of the Plastic Flow Machining Process." Materials 11, no. 7 (2018): 1218. http://dx.doi.org/10.3390/ma11071218.

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A new severe plastic deformation process, plastic flow machining (PFM), was introduced recently to produce sheet materials with ultrafine and gradient structures from bulk samples in one single deformation step. During the PFM process, a part of a rectangular sample is transformed into a thin sheet or fin under high hydrostatic pressure. The obtained fin is heavily deformed and presents a strain gradient across its thickness. The present paper aims to provide better understanding about this new process via analytical modelling accompanied by finite element simulations. PFM experiments were car

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