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Journal articles on the topic 'Material roughness'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Fischer, H., M. Schäfer, and R. Marx. "Effect of Surface Roughness on Flexural Strength of Veneer Ceramics." Journal of Dental Research 82, no. 12 (2003): 972–75. http://dx.doi.org/10.1177/154405910308201207.

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The strength of ceramic restorations depends on the occlusal surface roughness of the veneering porcelain, which is influenced by the final preparation. The hypothesis of the study was that roughnesses below a critical microscopic defect size—based only on fracture mechanics considerations—also affect flexural strength. The bending failure stress was evaluated on standard specimens of 4 veneer ceramics with 4 different surfaces of defined roughnesses, respectively. A linear correlation was found between roughness and failure stress. A "roughness-free" failure stress value was predicted for eac

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Liu, Jun, Xiao Xu Cai, Jun Yu Dong, and Xiao Qian Ning. "Perceived Roughness of Material Surfaces." Applied Mechanics and Materials 624 (August 2014): 62–66. http://dx.doi.org/10.4028/www.scientific.net/amm.624.62.

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Roughness is an important perceptual characteristic of material surfaces. This work investigated a derived model for evaluating surface roughness in accordance with human visual perception. This was accomplished with the help of extensive psychophysical experiments. Surface textures resembling natural materials were generated with different roughness. Subjects rated the surface textures on 5-point Likert scales based on visual perception of surface roughness. We trained a general model for mapping features of surface images to perceptual scales of roughness. It can be observed that the roughne

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Šimunović, Luka, Tadeja Blagec, and Senka Meštrović. "The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers." Applied Sciences 13, no. 3 (2023): 1319. http://dx.doi.org/10.3390/app13031319.

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Thermoplastic materials are sensitive to humidity, temperature variations, enzyme activities, and cyclic loading. All these factors can cause changes to the mechanical properties of the material. The aim of this study was to determine the influence of different cleaning protocols on the surface roughness of orthodontic retainers. Samples of two brands of polyethylene terephthalate glycol (PET-G) material were exposed to four cleaning protocols: Corega (alkaline peroxide tablets), Toothbrush, Corega + toothbrush, Toothbrush + toothpaste, and Control. Measurement of the surface roughness of the

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Zhang, Su, An Zhong Liu, and Jian Hua Cui. "Relationships between Tensile Mechanical Properties and Roughness of Tensile Fracture About 16MnR Steel after High Temperature." Applied Mechanics and Materials 37-38 (November 2010): 934–38. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.934.

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The microstructure of metal material would vary with temperature, the roughness of the metal fracture would change. The mechanical properties of materials closely related to roughness of fracture. In this paper, after high temperature the tensile fracture roughness and tensile mechanical properties were analyzed for 16MnR steel. Further, relationships between roughness of tensile fracture and temperature, relationships between roughness of tensile fracture and grain size of material were also discussed.

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Indrawan, Eko, Yufrizal A, Rifelino Rifelino, and Rahmad Fajri Ula Agus Herianto. "Surface Quality Comparison of Down and Up cut Technique on CNC Milling Machine toward ST-37 Steel Material." MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering 2, no. 1 (2020): 11–20. http://dx.doi.org/10.46574/motivection.v2i1.65.

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The purpose of this research is comparing down and up cut technique on milling process toward ST-37 steel material by using HSS Ø12 mm end mill cutter. The surface roughness result of down cut technique is achieved Ra 2.39 μm which is equivalent to N7 roughness level at lowest cutting speed 20 m/mnt. Moreover, the highest roughness Ra 3.61 μm obtained at highest cutting speed 30 m/mnt which is equivalent to N8 roughness level. While, the quality of up cut technique yield the roughnes Ra 3.94 μm, equivalent to N8 roughness level at lowest cutting speed 20 m/minute, whilst, Ra 6.01 μm that equiv

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Zhou, Ying, Yu Feng Liu, Feng Chen, et al. "Absolute Roughness of Trunk Natural Gas Transmission Pipeline with Mechanics Properties and Material Properties." Applied Mechanics and Materials 252 (December 2012): 116–19. http://dx.doi.org/10.4028/www.scientific.net/amm.252.116.

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The absolute roughness of pipeline is of great importance on the process calculation of trunk gas transmission pipelines. The software package Pipeline Studio is used to build the West-to-East Gas Pipeline, the Second West-to-East Gas Pipeline, Shan-Jing Gas Pipeline and the Second Shan-Jing Gas Pipeline simulation models, and the pipe segment between the valve chambers is the minimum element. The pipeline absolute roughnesses are inverse calculated with using the simulation models and 38 groups of realistic operation parameters. The results show there is no significant association between the

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Satyajeet, U. Manugade, M. Ingale Sanjaykumar, V. Patil Pritam, and U. Manugade Vishwajeet. "The Effect of Tool Coating Material and Cutting Parameters on the Surface Quality and Material Removal Rate of EN24 Steel Material for Turning Operation on CNC Machine." Research and Reviews: Journal of Mechanics and Machines 4, no. 3 (2023): 1–9. https://doi.org/10.5281/zenodo.7539879.

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<em>To find the effect of cutting parameters on the surface finish of the EN24 steel by using two different insert materials. The interaction of all three cutting parameters as Speed, Feed and Depth of cut are having a significant influence on surface roughness produced and material removal rate achieved. </em> <em>Optimum these are the Taguchi method tool settings for various cutting tool materials and workpiece materials. The experimental strategy used three factors, three levels, and an L9 orthogonal array. The results show that increasing the cutting speed and decreasing the feed rate resu

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Kuruc, Marcel, Martin Kusý, Vladimír Šimna, and Jozef Peterka. "Influence of Machining Parameters on Surface Topography of Cubic Boron Nitride at Rotary Ultrasonic Machining." Key Engineering Materials 686 (February 2016): 180–85. http://dx.doi.org/10.4028/www.scientific.net/kem.686.180.

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Poly-crystalline cubic boron nitride (PCBN) is one of the hardest known material. Therefore only advanced methods are able to treat such material. Advanced machining methods, proper for machining of hard and brittle materials (such as glass and ceramics) include rotary ultrasonic machining (RUM). This method should achieve high precision and low surface roughness (at least during machining of materials such as ceramics). Achievable roughness is affected by machined material and machining parameters. This contribution investigates influence of machining parameters, such as cutting speed and fee

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Hummudi, Israa M., and Nidhal S. Mansoor. "Determination of Surface Roughness and Accuracy of Alginate Impression Material Disinfected by Immersion." Journal of Baghdad College of Dentistry 34, no. 3 (2022): 50–57. http://dx.doi.org/10.26477/jbcd.v34i3.3234.

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Background: This study was conducted to evaluate the surface roughness and dimensional accuracy of commercially obtainable alginate impression material in terms of imbibition after immersion in two different media. Materials and method: Two disinfecting agents, ethanol 70% and povidone-iodine 4%, were used to access the dimensional accuracy and surface roughness of alginate impression material. Weights of specimen discs of alginate impressions were measured before and immediately after immersion to gain a measure of imbibition. For surface roughness, disinfected specimens rectangle was examine

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Mudjijanto, Mudjijanto, Hendri Destriyanto, Ali Achmadi, and Sarjono Sarjono. "PENGARUH JENIS MEDIA PENDINGIN TERHADAP GETARAN DAN NILAI KEKASARAN PERMUKAAN PADA PEMBUBUTAN MATERIAL BAJA AISI 1045." JURNAL CRANKSHAFT 7, no. 1 (2024): 12–19. http://dx.doi.org/10.24176/crankshaft.v7i1.11776.

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The coolant in the turning process functions to stabilize the temperature in the cutting process in addition to the temperature on the workpiece as well as the temperature on the tool, where an increase in temperature will certainly cause changes in mechanical properties. This research aims to find a correlation between surface roughness and vibration with variations in cooling in the AISI 1045 steel turning process. The research method for the AISI 1045 steel turning process is with a depth of cut 1 mm and a feed rate of 0.21 mm/rev and a rotation of 1,160 rpm, cooling using with variations,

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Ružbarský, Juraj. "Roughness Control of Surfaces Using a Laser Profilometer with the Selected Material Cutting Technology." Materials 16, no. 11 (2023): 4109. http://dx.doi.org/10.3390/ma16114109.

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The article aims to assess the roughness of parting surfaces in the context of abrasive water jet technology for various materials. The evaluation is based on the feed speed of the cutting head, which is adjusted to achieve the desired final roughness, taking into consideration the stiffness of the material being cut. We used non-contact and contact methods to measure selected parameters of the roughness of the dividing surfaces. The study included two materials—namely, structural steel material S235JRG1 and aluminum alloy AW 5754. In addition to the above, the study involved using a cutting h

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Shen, Jian Yun, and Xi Peng Xu. "Comparisons of Surface Roughness for Precision Ground Different Brittle Materials." Key Engineering Materials 416 (September 2009): 593–97. http://dx.doi.org/10.4028/www.scientific.net/kem.416.593.

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Brittle materials are popularly used as engineering materials for excellent properties. But the properties of brittle materials are different and special, and cause to different surface formation mechanism during the grinding process. In the study, surface roughnesses after grinding with different mesh size diamond wheels were measured. Combined with scanned surface topographies, the relation between the surface roughness and the properties of these brittle materials was discussed. It could be found that the material properties led to the different surface characteristics of brittle materials.

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Kumar, G. Vinaya, Renuka Devi, and Nimmy Anto. "Evaluation and Comparison of the Surface Roughness and Porosity of Different Provisional Restorative Materials: An in vitro Study." CODS Journal of Dentistry 8, no. 1 (2016): 39–45. http://dx.doi.org/10.5005/jp-journals-10063-0010.

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ABSTRACT Aim The purpose of this study was to evaluate and compare the surface roughness and porosity of different provisional restorative materials. Materials and methods Provisional restorative materials were divided into following three groups: Dental products of india (DPI), Protemp, Tempofit. For each group, wax block with 20 × 10 × 3 mm was made for making vinyl polysiloxane impression material to give 12 samples in each group of three different provisional restorative materials. The acrylic resin was inserted into the silicon impression mold. A total of 12 specimens of one material were

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Kim, Aran, Shigenobu Kainuma, and Muye Yang. "Surface Characteristics and Corrosion Behavior of Carbon Steel Treated by Abrasive Blasting." Metals 11, no. 12 (2021): 2065. http://dx.doi.org/10.3390/met11122065.

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The effects of blasting with metallic steel grit and non-metallic alumina grit on steel surface characteristics were evaluated. These abrasives are generally used at construction sites and in vacuum blasting. Milled steel specimens were used to investigate the effect of the blasting conditions on surface properties. The effect of difference in surface properties on the adhesion strength and corrosion behavior were measured through adhesion tests, polarization curves, and electrochemical impedance spectroscopy. The limitations of blasting were evaluated using corroded steel specimens, as were t

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15

Ciobotaru, Ioana-Alina, Maria Stoicanescu, Roxana Budei, Anca Cojocaru, and Danut-Ionel Vaireanu. "Considerations Regarding Sandblasting of Ti and Ti6Al4V Used in Dental Implants and Abutments as a Preconditioning Stage for Restorative Dentistry Works." Applied Sciences 14, no. 16 (2024): 7365. http://dx.doi.org/10.3390/app14167365.

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Sandblasting materials used for dental restoration are a valuable preconditioning technique that enhances the physical properties and promotes osseointegration and cell adhesion. Triplicate groups of Ti medical grade 4 and Ti6Al4V were blasted with 16 series of various naturally occurring and synthetically produced spraying materials of controlled granulometry at three spraying durations each and two spraying pressures, and the results were tested for the determination of the surface roughness taken as an average of 80 points ±5 points for each particular series of operating parameters. SEM an

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Jakupi, Kaltrine, Vladimir Dukovski, and Gezim Hodolli. "Surface Roughness Modeling of Material Extrusion PLA Flat Surfaces." International Journal of Polymer Science 2023 (May 13, 2023): 1–8. http://dx.doi.org/10.1155/2023/8844626.

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Complex forms may be easily created with additive manufacturing methods, but managing surface roughness remains a difficulty, even for flat surfaces, because surface quality is dependent on numerous parameters. This research investigates the effect of some printing factors on surface roughness in 3D printing methods. The purpose of this study is to quantify the most influential input printing factors on surface roughness in 3D printing processes. Polyacrylic acid thermoplastic was used to print workpieces, and mathematical models were generated using the regression method to analyze the relati

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ÇOLAK, Bilal, Zahoor AHMED, Batuhan ÖZAKIN, and Naci KURGAN. "An Experimental Investigation into Roughness Transfer in Asymmetrical Rolling of Steel Strips." Karadeniz Fen Bilimleri Dergisi 13, no. 3 (2023): 1070–89. http://dx.doi.org/10.31466/kfbd.1289221.

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This study investigated the effect of rolling parameters such as speed, thickness reduction, roll surface roughness, material thickness, surface condition (dry or lubricated), and rolling force on the roughening characterization in asymmetrical rolling. The surface roughness of the samples subjected to rolling tests was measured. The roughness values' average and standard deviation were found, and 3-D scanning images were acquired. Lubricated texturing experiments revealed that lubrication reduced roughness transfer. It was found that the introduction of roughness on the material surface decre

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Wu, Hao, Peng Fei Gao, Wei Fang Wang, and Dong Hui Wen. "Statistical Analysis on Lapping Parameters for Sapphire Wafer." Advanced Materials Research 102-104 (March 2010): 587–90. http://dx.doi.org/10.4028/www.scientific.net/amr.102-104.587.

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Effect of lapping speed, plate material and crystal orientation on material removal rate and surface roughness were investigated by experiments and Taguchi Methods. Experimental results show both materials remove rate and surface roughness could be finished by using sythetic copper lapping plate with w3.5 cubic boron nitride abrasive than that for thin plate. Materials removal rate and surface roughness have no much difference for different crystal orientation as A-plane, C-plane and M-plane with experimental parameter conditions, lapping speed would be recommonded to not over 40rpm.

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Sengupta, Ishani, Mamatha Ballal, Saahithya Mahesh, and Shashi Rashmi Acharya. "Surface roughness and bacterial adhesion on composite materials: an in vitro comparative evaluation." Biomedicine 43, no. 4 (2023): 1220–25. http://dx.doi.org/10.51248/.v43i4.2947.

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Introduction and Aim: Despite being popular, composite materials frequently degrade, and cause secondary caries in the oral cavity. Studies suggest that surface characteristics, particularly surface roughness, can impact the functionality, durability, and biofilm formation of these materials. This study was carried out to evaluate and compare the surface roughness of nano-ceramic restorative and bulk-fill flowable composite materials and their bacterial adhesion properties using Streptococcus mutans. Materials and Methods: 16 disks of each composite type, Ceram x SphereTEC one universal nano-c

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Shen, Jian Yun, Wei Min Lin, Hitoshi Ohmori, and Xi Peng Xu. "Surface Roughness Characteristics of Finely Ground Ceramics." Materials Science Forum 532-533 (December 2006): 416–19. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.416.

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In the present study, surface roughness after grinding with different mesh size diamond wheels were measured to study the surface roughness characteristics of engineering ceramics. According to the surface behaviours and measured surface roughness, the relation between the surface roughness and the properties of these brittle materials was described. Coupled with the micro-observation of ground surfaces, it was concluded that the grinding condition and material properties led to the differences of surface roughness characteristics of brittle materials. The silicon nitride ceramic was the most

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21

Liu, An Zhong, and Su Zhang. "Relationships between Fatigue Mechanical Properties and Roughness of Fatigue Fracture about 16MnR Steel after High Temperature." Advanced Materials Research 602-604 (December 2012): 333–36. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.333.

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The microstructure of metal material would change with temperature, the roughness of the metal fracture would also vary. The mechanical properties of materials closely related to roughness of fracture. In this paper, after high temperature the crack strain fatigue fracture roughness and fatigue mechanical properties were analyzed for 16MnR steel. Further, relationships between roughness of fatigue fracture and temperature were also discussed.

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Yoshimoto, Shunsuke, Yoshihiro Kuroda, Masataka Imura, and Osamu Oshiro. "Material Roughness Modulation via Electrotactile Augmentation." IEEE Transactions on Haptics 8, no. 2 (2015): 199–208. http://dx.doi.org/10.1109/toh.2015.2412942.

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Karasev, Leonid S., Sergey A. Shorohov, Aleksey V. Krotov, and Sergey A. Gamayanov. "PECULIARITIES OF DEFORMATION OF MODELS OBTAINED BY FDM-PRINTING TECHNOLOGY FROM DIFFERENT POLYMERS." Technologies & Quality 55, no. 1 (2022): 48–52. http://dx.doi.org/10.34216/2587-6147-2022-1-55-48-52.

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This article deals with the peculiarities of polymeric materials used in 3D printing. It analyses and compares the linear deviation value, the level of roughness and surface roughness of polymer prototypes made of different materials. Technical recommendations are given concerning the possibilities of 3D FDM printing and peculiarities of polymer material selection for its use as a building material for the production of prototypes of artistic models.

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Wu, Ji Hua. "Experimental Evaluation of Surface Roughness in Orthogonal Micro-Milling Processes." Applied Mechanics and Materials 217-219 (November 2012): 1912–16. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1912.

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Surface roughness plays a critical role in evaluating and measuring the surface quality of a machined product. Two workpiece materials have been investigated by experimental approach in order to gain a better understanding of their influence on the obtained surface roughness in the micro-milling processes. The experimental results show that: surface topography is completely different for different materials at the same cutting speed and feed rate; surface roughness increases with an increase of material grain size. Surface roughness decreases to a lowest value, and then increases with an incre

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Khan, Md Jafar. "Optimization of Surface Roughness in Turning Operation using Al- 6063 and Effect of Dry Machining." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 4210–15. http://dx.doi.org/10.22214/ijraset.2021.35993.

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ALUMINIUM-6063 is a widely used alloy material in the production of aerospace, aircraft, gas turbine components. This investigation focuses on the influence of machining parameters, viz., spindle speed, depth of cut and feed rate on the surface roughness obtained in Lathe operation of Al 6063 alloy. In the present study, experiments are conducted for nine different Al 6063 work piece materials to see the effect of work piece material variation in this respect. This roughness parameters, viz., Centre line average roughness, root mean square roughness. The roughness models as well as the signifi

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Sakaguchi, Hayate, Takuma Kishimoto, Saki Suematsu, et al. "Change in Surface Roughness on the Inner and Outer Surfaces of the Microtube during Hollow Sinking." Materials 17, no. 17 (2024): 4320. http://dx.doi.org/10.3390/ma17174320.

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Hollow sinking experiments and tensile tests were conducted to clarify the evolution of surface roughness during hollow sinking. Stainless steel tubes (outer diameter: 1.5 mm; wall thickness: 0.045 mm) featuring a single grain spanning the wall thickness achieved via annealing as the starting material. The tube was drawn without an internal tool using a draw bench by controlling the tube drawing speed ratio of the die entrance and exit sides. The surface roughnesses of the inner and outer surfaces at the die entrance and exit sides of the drawn tube were compared with the surface roughnesses o

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Mahapatra, Mausumi, Priyanka P. Singh, and Ganeswar Nath. "Laser speckle-based estimation of surface condition for designing quieter material." Laser Physics 34, no. 1 (2023): 016003. http://dx.doi.org/10.1088/1555-6611/ad0ec0.

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Abstract Laser speckle is a non-contact, non-interfering, non-destructive, rapid and controllable technique with a large area of coverage that has attracted much attention for surface analysis of materials. The emergence of different natural cellulosic materials as potential candidates for the replacement of synthetic ones is promising, but their sustainability from the point of view of material design is still in question. Machining of the surface of cellulosic components for making sound-dampening materials has a critical effect on determining their surface condition. Laser speckle is an eme

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Rohr, N., N. Bertschinger, J. Fischer, A. Filippi, and NU Zitzmann. "Influence of Material and Surface Roughness of Resin Composite Cements on Fibroblast Behavior." Operative Dentistry 45, no. 5 (2020): 528–36. http://dx.doi.org/10.2341/19-113-l.

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Clinical Relevance A well-polished cement surface increases the viability and spreading of gingival fibroblasts. The tested resin composite cements did not reveal any cytotoxic effects. SUMMARY Objective: This in vitro study aimed to investigate the effect of cement type and roughness on the viability and cell morphology of human gingival fibroblasts (HGF-1). Methods and Materials: Discs of three adhesive (Panavia V5 [PV5], Multilink Automix [MLA], RelyX Ultimate [RUL] and three self-adhesive (Panavia SA plus [PSA], SpeedCem plus [SCP], RelyX Unicem [RUN]) resin composite cements were prepared

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Liu, Zeng Wen, and R. Y. Liu. "Study on Polishing Technology for Hard-Brittle Materials by a Micro Abrasive Water Jet." Advanced Materials Research 1027 (October 2014): 52–57. http://dx.doi.org/10.4028/www.scientific.net/amr.1027.52.

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s: Abrasive jet micromachining is considered as a promising precision processing technology for brittle materials such as silicate glass and silicon nitride that are increasingly used in various applications. In this study, some polishing experiments are conducted for hard-brittle materials by a micro slurry jet. The results show that the morphology and the integrity of the material surface are improved greatly after polishing. The average roughness (Ra) value of the silicate glass decrease from 2.32μm to 0.35μm and the average roughness (Ra) value of the Si3N4 decrease from 2.63μm to 0.34μm.

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KENNEDY, John, and Sophie WELDON. "Low cost modelling tools for the design of additively manufactured acoustic materials." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 8 (2024): 3505–15. http://dx.doi.org/10.3397/in_2024_3337.

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Additive manufacturing (AM) methods have unlocked new capabilities in the design of acoustic materials and their topologies. This has enabled the design of devices with breakthrough performance in sound absorption and insulation while achieving subwavelength characteristics. However, material fabrication through AM presents its own challenges. These challenges include inherent defects which can be specific to the printing method employed. Examples of defects in low-cost AM include void formation, surface roughness and poor bonding between layers. Each of these features of AM have different aco

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Jia, Yun Hai. "Impact Analysis of Electrode Material on Electrical Discharge Machining Polycrystalline Diamond Processing." Applied Mechanics and Materials 441 (December 2013): 36–39. http://dx.doi.org/10.4028/www.scientific.net/amm.441.36.

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The electrode material plays a very important role in the electric discharge machining, affects the electrical discharge machining efficiency and machining surface quality. Experiment testing and materials analysis as the primary method, affect layer thickness and workpiece surface roughness value as evaluation indexes. PCD cutting tool samples were electrical discharge machined using copper electrodes and graphite electrodes respectively. After machining, the PCD cutting tool samples' surfaces were analyzed by X ray diffraction, the surfaces appearances were observed under the scanning electr

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Silva, Renata Cristiane da, and Angela Cristina Cilense Zuanon. "Surface roughness of glass ionomer cements indicated for atraumatic restorative treatment (ART)." Brazilian Dental Journal 17, no. 2 (2006): 106–9. http://dx.doi.org/10.1590/s0103-64402006000200004.

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The purpose of this study was to evaluate the surface roughness of four conventional chemically cured glass ionomer cements (Fuji IX, Ketac Molar, Vidrion R and Vitromolar) commonly used in atraumatic restorative treatment (ART) immediately after material preparation. Twenty specimens of each glass ionomer cement were fabricated and surface roughness was measured after material setting. The specimens were further examined under scanning electron microscopy. Data were analyzed statistically by Kruskal-Wallis test and Mann-Whitney test at 5% significance level. Two-by-two comparisons showed stat

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Sukantharat, Anan, Kessararat Ugsornrat, and Chalermsak Sumithpibul. "Effect of Epoxy Molding Compound Material and Roughness Leadframe to Integrated Circuit Package for Automotive Devices." ECTI Transactions on Electrical Engineering, Electronics, and Communications 18, no. 2 (2020): 179–88. http://dx.doi.org/10.37936/ecti-eec.2020182.240488.

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This research studied about an effect of epoxy molding compound material and roughness leadframe of integrated circuit package for automotive device. In manufacturing process, the epoxy molding compound material and leadframe roughness are main factors that effect to coefficient of thermal expansion (CTE) and reliability for automotive device package with no delamination in high temperature application. In experiment, two types of epoxy molding compound materials were studied and compared between standard and roughened leadframe for quad flat non lead (QFN) package. For reliability test, the e

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Filatov, Yuriy, Volodymyr Sidorko, Sergiy Kovalev, Viktor Kovalev, and Oksana Yurchishin. "Polishing of precision parts from polymer optical materials." International Scientific and Technical conference "The Progressive Technics, Technology and Engineering Education", no. XXIII (June 16, 2023): 216–19. http://dx.doi.org/10.20535/2409-7160.2023.xxiii.278251.

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The conducted research concerns the study of the laws influence of the physicochemical properties the processed material and the polishing dispersion system on the productivity of removing the processed material and the roughness the processed surfaces during the polishing of polymeric optical materials. The research was carried out according to a special methodology, the parameters of the roughness of the polished surfaces were determined using elements of computer modeling. As a result of the study, it was determined that during the polishing precision parts made of polystyrene and polymethy

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Hazim Kassoob, Ahmed, and Ihab Nafea Yaseen. "The Effect of Polishing Techniques on Surface Roughness of Two Different Denture Base Materials." Mustansiria Dental Journal 18, no. 2 (2022): 205–19. http://dx.doi.org/10.32828/mdj.v18i2.923.

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Background: Regarding acrylic resin, a direct link was found between surface roughness, plaque buildup, and microbial adhesion. However, the current polyamide material's surface characteristics are still debatable, especially after utilizing conventional polishing and finishing techniques. Heat curing acrylic resin makes it easy to evaluate the surface characteristics of each material and to follow advice for the best practices. Objectives: The aim of the current study is to evaluate and compare the surface Roughness of heat cure acrylic resin and flexible acrylic resin materials before

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Pandey, Gaurav Kumar, Praveen Bhai Patel, Abhishek Kumar, Ramendra Singh Niranjan, Vikas Katiyar, and A. K. Chandra. "Effect of different wire materials on WEDM performance of Bio-compatible material." Production Engineering Archives 28, no. 1 (2022): 50–55. http://dx.doi.org/10.30657/pea.2022.28.06.

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Abstract The present experimental investigation aims to analyse the effect of various machining parameters, such as pulse peak current (Ion), pulse on time (Ton), pulse off time (Toff) and spark voltage (SV) on the surface roughness (SR) and material removal rate(MRR) by using continuous traveling of both wire electrode (i.e. brass wire and zinc-coated brass wire). The present work also analyses the effect of types of wires, such as brass wire and zinc-coated brass wire used during machining of Titanium alloy (Ti-6Al-4V) on Surface roughness (SR) and material removal rate (MRR). This work stud

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Al-Otaibi, Hanan, Rafal Basaqer, Sarah Almania, et al. "Effect of acidic saliva on monomer leaching and surface roughness of 3D-printed and milled denture-base materials." Polimery 68, no. 3 (2023): 149–56. http://dx.doi.org/10.14314/polimery.2023.3.3.

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The study evaluated the effect of different acidic salivary pH values on monomer leaching and surface roughness of conventional and CAD/CAM processed (milled and 3D-printed) denture base materials. High-performance liquid chromatography was used to determine the quantity of residual methyl methacrylate monomer leaching after 30 days of immersion in acidic saliva. The surface roughness (Ra) before and after incubation was recorded using a non-contact optical profilometer. The monomer leaching and the surface roughness of the tested materials depended on the pH value of the saliva. The conventio

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Dash, Akshay K., Priyanka P. Singh, and Ganeswar Nath. "Estimation of reflection loss in a microwave absorbing material based on the laser speckle method." Laser Physics Letters 20, no. 8 (2023): 086004. http://dx.doi.org/10.1088/1612-202x/ace2b3.

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Abstract Microwave absorption has received much attention due to its prospective implementation in the extenuation of electromagnetic interference (EMI). The effectiveness of any microwave absorbing material (MAM) is demonstrated by its dielectric dependent properties, such as electric permittivity, magnetic permeability and computed parameters like tangent loss, attenuation and reflection loss (RL) etc. RL is one of the special features of MAMs, allowing the quality of a MAM to be identified by its surface condition and the composition of the fabricated material. As a surface phenomenon, RL d

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Dewan, Harisha, Vishwanath Gurumurthy, Vilas V. Patel, Sirisha Kommuri, Ruthika S. Patil, and Sowgata Debsingha. "A Lab-Based Study to Assess the Surface Roughness of Various Investments: An Original Research." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S177—S179. http://dx.doi.org/10.4103/jpbs.jpbs_445_23.

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ABSTRACT Introduction: Surface roughness of the crowns is dependent on the pattern material used for the making as well as the procedure of investing. The study was aimed to examine the impact of various pattern materials and investment procedures on the surface roughness of nickel-chromium alloy raw castings. Materials and Methods: An in-vitro study was piloted at a tertiary care hospital. Eighty samples of inlay wax and pattern resin were divided equally. They were invested in phosphate-bonded investment material and kept under normal atmospheric pressure as well as invested under a pressure

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Padovani, GC, SBP Fúcio, GMB Ambrosano, MAC Sinhoreti, and RM Puppin-Rontani. "In Situ Surface Biodegradation of Restorative Materials." Operative Dentistry 39, no. 4 (2014): 349–60. http://dx.doi.org/10.2341/13-089-c.

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SUMMARY This study aimed to evaluate the surface characteristics of restorative materials (roughness, hardness, chemical changes by energy-dispersive spectroscopy [EDX], and scanning electron microscopy [SEM]) submitted to in situ biodegradation. Fifteen discs of each material (IPS e.max [EM], Filtek Supreme [FS], Vitremer [VI], Ketac Molar Easymix [KM], and Amalgam GS-80 [AM]) were fabricated in a metallic mold (4.0 mm × 1.5 mm). Roughness, hardness, SEM, and EDX were then evaluated. Fifteen healthy volunteers used a palatal device containing one disc of each restorative material for seven da

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Istana, Budi, Sunaryo Sunaryo, and Jon Kennedi. "Analisis Kekasaran Permukaan Benda Kerja Hasil Pembubutan dengan Variasi Jenis Material dan Pahat Potong." Jurnal Surya Teknika 5, no. 01 (2017): 67–72. http://dx.doi.org/10.37859/jst.v5i01.351.

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The surface shape and roughness of a product produced by machine tools such as lathe plays an important role. This is due to the surface shape and roughness of the product related to friction, wear, lubrication system and so on. The machining process will determine the surface roughness at a certain level where the surface roughness can be used as a reference for evaluation of machining products. The surface roughness of a product does not have to be of little value. One product that is required to have a low surface roughness is the shaft. In the analysis of surface roughness, the steps taken

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Wang, Gui Lian, Hai Bo Zhou, Shu Li Guo, De Chen Huang, Ren Bao Jiao, and Namjil Bayarsaikhan. "Polishing Experiment Study of the Elastic Coated Abrasives." Advanced Materials Research 941-944 (June 2014): 1981–84. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1981.

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A kind of elastic coated abrasives used for polishing large mould surface, such as automobile panel mould, is investigated in this research. Many polishing experiments were finished by using elastic coated abrasives in order to study the effects of grit and workpiece material on surface roughness and machining efficiency. It is concluded that surface roughness is minimum and polishing efficiency is the highest when using 120# abrasives at the same condition, surface roughness is the lowest and polishing efficiency is the highest for AISI 1045 steel in three materials. The difficulty of materia

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Paolone, Gaetano, Eugenio Moratti, Cecilia Goracci, Enrico Gherlone, and Alessandro Vichi. "Effect of Finishing Systems on Surface Roughness and Gloss of Full-Body Bulk-Fill Resin Composites." Materials 13, no. 24 (2020): 5657. http://dx.doi.org/10.3390/ma13245657.

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Background: In this study, we assess the effect produced on roughness and gloss of full-body bulk-fill materials by different finishing and polishing systems. Methods: Four full-body bulk-fill materials were tested: SonicFill2 (SF), Filtek Bulk Fill Posterior Restorative (FB), Tetric EvoCeram bulk-fill (EC), and Fill-Up! (FU). Sixty discs per material (2 mm in thickness and 7 mm in diameter) were obtained and randomly assigned (n = 15) to four finishing and polishing methods: Sof-Lex Spiral Wheels (SW), HiLusterPLUS (HL), Astropol (AP), and Opti1Step (OS). Surface roughness and gloss were then

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Yassen, Zahraa Noori, and Israa Mohammed Hummudi. "Influence of Different Wax Hardening Agents on Surface Roughness of Refractory Cast Investment Materials." Journal of Techniques 3, no. 3 (2021): 91–95. http://dx.doi.org/10.51173/jt.v3i3.326.

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Background: Phosphate-bonded investments produce a refractory cast model with rough surface and undesirable properties. Dental Surface hardening agents are then applied to refractory investment materials to enhance its properties. Purpose: compare and evaluate the effects of different dental cast hardening agents (Bees wax, Carnauba wax, and Ceresin wax) on surface roughness of refractory model investment material.  Approach: 30 specimens were constructed from commercially available phosphate bonded investment material. Specimens were subjected to a roughness test before dipping in

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Omar, Mohammad Rafi, Muhammad Ilman Hakimi Chua Abdullah, Mohd Rizal Alkahar, et al. "Effect of Polyamide-12 Material Compositions on Mechanical Properties and Surface Morphology of SLS 3D Printed Part." Journal of Mechanical Engineering 19, no. 1 (2022): 57–70. http://dx.doi.org/10.24191/jmeche.v19i1.19686.

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Despite the fact that many 3D printed products have been developed, there are still issues with the printed product’s physical properties and surface morphology. This study examines the effects of significant Selective Laser Sintering (SLS) 3D printer parameters on the material strength of Polyamide12 (PA-12). A variety of virgin materials, reheat materials, and recycled materials were used for the PA-12 material compositions. The test specimens were prepared at different process parameters and material composition percentages using the SLS 3D printer. The tensile strength, surface roughness,

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Yardimeden, Ahmet. "Investigation of optimum cutting parameters and tool radius in turning glass-fiber-reinforced composite material." Science and Engineering of Composite Materials 23, no. 1 (2016): 85–92. http://dx.doi.org/10.1515/secm-2013-0301.

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AbstractGlass-fiber-reinforced composite materials (GFRPs) are used widely in various fields of engineering. Turning is the principal process conducted on these materials for obtaining minimum surface roughness. Machining of GFRP materials is different from traditional style due to their inhomogeneous and anisotropic structures. Optimum machining parameters for specific GFRP materials need to be ascertained for perfect machining. In this study, the influence of cutting parameters and insert radius on the cutting force and surface roughness of GFRP material during machining was investigated. Fo

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Satyajeet, U. Manugade, and M. Ingale Sanjaykumar. "The Effect of Cutting Parameters on the Surface Quality of Different Workpiece Materials for Turning Operation on CNC Machine." Research and Reviews on Experimental and Applied Mechanics 4, no. 1 (2021): 1–7. https://doi.org/10.5281/zenodo.4896271.

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<em>In this paper an attempt has been made to find an interaction of cutting parameter on quality of surface roughness, material removing rate and cycle time for workpiece material using cutting tool material for Turing operation performed on CNC machine. Various researcher has performed full factorial experiment and partial factorial experiment to obtain the relationship and effect of these parameters. It has been found that the out of these parameters most important and for is to find the effect of different cutting parameters on the surface of the workpiece. The interaction of all three cut

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Llanto, Jennifer Milaor, Ana Vafadar, Muhammad Aamir, and Majid Tolouei-Rad. "Analysis and Optimization of Process Parameters in Abrasive Waterjet Contour Cutting of AISI 304L." Metals 11, no. 9 (2021): 1362. http://dx.doi.org/10.3390/met11091362.

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Abrasive waterjet machining is applied in various industries for contour cutting of heat-sensitive and difficult-to-cut materials like austenitic stainless steel 304L, with the goal of ensuring high surface integrity and efficiency. In alignment with this manufacturing aspiration, experimental analysis and optimization were carried out on abrasive waterjet machining of austenitic stainless steel 304L with the objectives of minimizing surface roughness and maximizing material removal rate. In this machining process, process parameters are critical factors influencing contour cutting performance

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Pettini, Francesco, Massimo Corsalini, Maria Grazia Savino, et al. "Roughness Analysis on Composite Materials (Microfilled, Nanofilled and Silorane) After Different Finishing and Polishing Procedures." Open Dentistry Journal 9, no. 1 (2015): 357–67. http://dx.doi.org/10.2174/1874210601509010357.

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The finishing and polishing of composite materials affect the restoration lifespan. The market shows a variety of finishing and polishing procedures and the choice among them is conditioned by different factors such as the resulting surface roughness. In the present study, 156 samples were realized with three composite materials, -microfilled, nanofilled and silorane-, and treated with different finishing and polishing procedures. Profilometric analyses were carried out on the samples’ surface, the measured roughness values were submitted to statistical analysis. A complete factorial plan was

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Cao, Lina, and Kursat Sendur. "Surface Roughness Effects on the Broadband Reflection for Refractory Metals and Polar Dielectrics." Materials 12, no. 19 (2019): 3090. http://dx.doi.org/10.3390/ma12193090.

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Random surface roughness and surface distortions occur inevitably because of various material processing and fabrication techniques. Tailoring and smoothing the surface roughness can be especially challenging for thermomechanically stable materials, including refractory metals, such as tungsten (W), and polar dielectrics, such as silicon carbide (SiC). The spectral reflectivity and emissivity of surfaces are significantly impacted by surface roughness effects. In this paper, we numerically investigated the surface roughness effects on the spectral reflectivity and emissivity of thermomechanica

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