Results 141 to 150 of about 370 (173)
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Influence of the Agglomeration Phenomenon on the Recast Surface in PMEDM Environment
2020The agglomeration phenomenon that occurs in PMEDM environment is one of the significant obstacles in enhancing the removal operation in this environment. This phenomenon has been investigated by the prior studies to improve the microhardness (MH) and recast layer thickness (RLT). However, these studies have not focused on the type of agglomeration that
M. A. Abbas, M. A. Lajis
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Effect of Input Parameters on Electrode Wear in PMEDM Cylindrical Shaped Parts
Key Engineering Materials, 2020This paper deals with the effect of input parameters of Powder Mixed Electric Discharge Machining (PMEDM) process on the surface roughness when processing cylindrical shaped parts. In this work, the workpiece material is 90CrSi alloy tool steel and the nanopowder is silicon carbide. Also, five input parameters including the pulse on time, the pulse off
Le Hong Ky +7 more
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Multi-Objective Optimization of PMEDM Input Factors for Processing Cylindrical Shaped Parts
Materials Science Forum, 2021The present work deals with multi-objective optimization of powder mixed electric discharge machining (PMEDM) when processing cylindrically shaped parts. In this work, the pulse on time Ton, the pulse off time Toff, the powder concentration Cp, the pulse current IP, and the server voltage SV were chosen for the optimization problem.
Tran Thi Hong +7 more
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Technology and research developments in powder mixed electric discharge machining (PMEDM)
Journal of Materials Processing Technology, 2007Abstract Powder mixed electric discharge machining (PMEDM) is one of the recent innovations for the enhancement of capabilities of EDM process. In PMEDM, the electrically conductive powder is mixed in the dielectric of EDM, which reduces the insulating strength of the dielectric fluid and increases the spark gap between the tool and workpiece.
H.K. Kansal +2 more
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Aluminium powder mixed rotary electric discharge machining (PMEDM) on Inconel 718
Australian Journal of Mechanical Engineering, 2017AbstractThe rotary tool is a recent innovation of PMEDM. Aluminium oxide (Al2O3) powder with a particle concentration of 0.5–1.5 gm/l was added into the dielectric to study improved machining performance. Inconel 718 was machined using copper–tungsten electrode with tool rotation about 300 rpm.
Sagar Patel +2 more
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Powder Mixed Electrical Discharge Machining (PMEDM)
2022Jibin T. Philip, Basil Kuriachen
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Reverse-polarity PMEDM using self-welding bundled 3D-laminated microelectrodes
Journal of Materials Processing Technology, 2019Abstract To improve the fabrication efficiency of three-dimensional (3D) microelectrode and to eliminate the discharge ridges on microstructures that are machined by laminated microelectrodes, Sn-plated Cu foils were used to prepare a bundled 3D-laminated microelectrode.
Zhao-zhi Wu +5 more
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Advanced Materials Research, 2013
In this article, parametric optimization for material removal rate (MRR) and surface roughness (SR) study on the powder mixed electrical discharge machining (PMEDM) of EN-8 steel has been carried out. Response surface methodology (RSM) has been used to plan and analyze the experiments.
Rajiv Kumar Garg, Kuldeep Ojha
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In this article, parametric optimization for material removal rate (MRR) and surface roughness (SR) study on the powder mixed electrical discharge machining (PMEDM) of EN-8 steel has been carried out. Response surface methodology (RSM) has been used to plan and analyze the experiments.
Rajiv Kumar Garg, Kuldeep Ojha
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2012 IEEE International Conference on Mechatronics and Automation, 2012
This paper reviews the current understanding of powder mixed electrical discharge machining (PMEDM), highlighting particularly the mechanisms proposed for PMEDM under the influence of additive of powders in the dielectric fluids. Generally, the mirror surface phenomenon in PMEDM can be explained by the enlarged gap widths which can expand the discharge
Yanzhen Zhang +6 more
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This paper reviews the current understanding of powder mixed electrical discharge machining (PMEDM), highlighting particularly the mechanisms proposed for PMEDM under the influence of additive of powders in the dielectric fluids. Generally, the mirror surface phenomenon in PMEDM can be explained by the enlarged gap widths which can expand the discharge
Yanzhen Zhang +6 more
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Developing a numerical model to analyze the production process of PMEDM
Resources Policy, 2023G. Rajkumar, M. Saravanan, P. Marimuthu
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