The Experts below are selected from a list of 285 Experts worldwide ranked by ideXlab platform
Gul Tosun - One of the best experts on this subject based on the ideXlab platform.
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a study on kerf and material removal rate in wire electrical discharge Machining based on taguchi method
Journal of Materials Processing Technology, 2004Co-Authors: Nihat Tosun, Can Cogun, Gul TosunAbstract:Abstract This paper presents an investigation on the effect and optimization of Machining Parameters on the kerf (cutting width) and material removal rate (MRR) in wire electrical discharge Machining (WEDM) operations. The experimental studies were conducted under varying pulse duration, open circuit voltage, wire speed and dielectric flushing pressure. The settings of Machining Parameters were determined by using Taguchi experimental design method. The level of importance of the Machining Parameters on the cutting kerf and MRR is determined by using analysis of variance (ANOVA). The optimum Machining Parameter combination was obtained by using the analysis of signal-to-noise (S/N) ratio. The variation of kerf and MRR with Machining Parameters is mathematically modeled by using regression analysis method. The optimal search for Machining Parameters for the objective of minimum kerf together with maximum MRR is performed by using the established mathematical models.
Nihat Tosun - One of the best experts on this subject based on the ideXlab platform.
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a study on kerf and material removal rate in wire electrical discharge Machining based on taguchi method
Journal of Materials Processing Technology, 2004Co-Authors: Nihat Tosun, Can Cogun, Gul TosunAbstract:Abstract This paper presents an investigation on the effect and optimization of Machining Parameters on the kerf (cutting width) and material removal rate (MRR) in wire electrical discharge Machining (WEDM) operations. The experimental studies were conducted under varying pulse duration, open circuit voltage, wire speed and dielectric flushing pressure. The settings of Machining Parameters were determined by using Taguchi experimental design method. The level of importance of the Machining Parameters on the cutting kerf and MRR is determined by using analysis of variance (ANOVA). The optimum Machining Parameter combination was obtained by using the analysis of signal-to-noise (S/N) ratio. The variation of kerf and MRR with Machining Parameters is mathematically modeled by using regression analysis method. The optimal search for Machining Parameters for the objective of minimum kerf together with maximum MRR is performed by using the established mathematical models.
Can Cogun - One of the best experts on this subject based on the ideXlab platform.
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a study on kerf and material removal rate in wire electrical discharge Machining based on taguchi method
Journal of Materials Processing Technology, 2004Co-Authors: Nihat Tosun, Can Cogun, Gul TosunAbstract:Abstract This paper presents an investigation on the effect and optimization of Machining Parameters on the kerf (cutting width) and material removal rate (MRR) in wire electrical discharge Machining (WEDM) operations. The experimental studies were conducted under varying pulse duration, open circuit voltage, wire speed and dielectric flushing pressure. The settings of Machining Parameters were determined by using Taguchi experimental design method. The level of importance of the Machining Parameters on the cutting kerf and MRR is determined by using analysis of variance (ANOVA). The optimum Machining Parameter combination was obtained by using the analysis of signal-to-noise (S/N) ratio. The variation of kerf and MRR with Machining Parameters is mathematically modeled by using regression analysis method. The optimal search for Machining Parameters for the objective of minimum kerf together with maximum MRR is performed by using the established mathematical models.
Laifei Cheng - One of the best experts on this subject based on the ideXlab platform.
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effect of Machining Parameter on femtosecond laser drilling processing on sic sic composites
The International Journal of Advanced Manufacturing Technology, 2018Co-Authors: Yongsheng Liu, Ruoheng Zhang, Jing Wang, Xiaojun Yang, Laifei Cheng, Litong ZhangAbstract:Due to the unique properties of femtosecond laser in precision Machining, femtosecond laser was utilized for irradiation on SiC/SiC composites. Effects of different processing Parameters, including the spot overlap ratio, helical line overlap ratio, laser processing power, as well as processing steps, were discussed in detail. The results indicated that the Parameters above had significant effect on Machining of SiC/SiC composites. The surface morphology and geometry of the micro-holes were investigated under different Parameters, and the corresponding formation mechanism was discussed in detail. It was believed that both the spot and helical line overlap ratio had great effect on the quality of the micro-holes and would be responsible to the depth of micro-holes. Besides, it is indicated that the higher processing power will lead to a better quality of surface morphology and Machining results. In micro-hole drilling process, debris and fragments were observed within the micro-holes, and XPS analysis showed that there existed Si-O bonds and Si-C bonds, indicating that the oxidation during processing was incomplete. In addition, the effect of feeding speeds on geometry and depth of the micro-holes were discussed as well.
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Machining Parameter optimization of c sic composites using high power picosecond laser
Applied Surface Science, 2015Co-Authors: Ruoheng Zhang, Yongsheng Liu, Chunhui Wang, Jing Wang, Xiaojun Yang, Laifei ChengAbstract:Picosecond laser is an important Machining technology for high hardness materials. In this paper, high power picosecond laser was utilized to drill micro-holes in C/SiC composites, and the effects of different processing Parameters including the helical line width and spacing, Machining time and scanning speed were discussed. To characterize the qualities of machined holes, scanning electron microscope (SEM) was used to analyze the surface morphology, energy dispersive spectroscopy (EDS) and X-ray photoelectric spectroscopy (XPS) were employed to describe the element composition change between the untreated and laser-treated area. The experimental results indicated that all Parameters mentioned above had remarkable effects on the qualities of micro-holes such as shape and depth. Additionally, the debris consisted of C, Si and 0 was observed on the machined surface. The Si C bonds of the SiC matrix transformed into Si-0 bonds after machined. Furthermore, the physical process responsible for the mechanism of debris formation was discussed as well. (C) 2015 Elsevier B.V. All rights reserved.
G. W. Fischer - One of the best experts on this subject based on the ideXlab platform.
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Development of a framework to automate process planning functions and to determine Machining Parameters
International Journal of Production Research, 1993Co-Authors: R. V. Narang, G. W. FischerAbstract:A methodology is developed to perform the Machining Parameter selection function in an automated process planning environment. At the same time, a framework is developed to perform the machine and tool selection function of process planning. The purpose of the Machining Parameter selection function, as envisioned in this study, is to determine the number of roughing and finishing passes needed, depth of cut, cutting speed, and feed for each pass depending on the part geometry, tolerance, the available machine types and appropriate grades of cutting tools. A new stable cutting region constraint is proposed. A Machining-related cost based on tolerance, called measurement and adjustment cost, is derived and included in the formulation. A way to determine maximum roughing depth of cut is indicated. Finally, a part example is used to demonstrate the concepts for a turning operation.
