MATEC Web Conf.
Volume 363, 20225th International Conference on Advances in Materials, Machinery, Electronics (AMME 2022)
|Number of page(s)||4|
|Published online||29 August 2022|
Crack study of recasting layer on workpiece surface in Micro-EDM
1 School of Mechanical and Electrical Engineering, Guizhou normal university, Guiyang, 550025, China
2 School of Aerospace Engineering, Xiamen University, Xiamen, 361102, China
In this paper, the crack phenomenon of different materials was studied according to the surface morphology of recasting layer of micro EDM workpiece. In this paper, high-speed steel and titanium alloy are used as workpiece materials, and the RC pulse power supply is used for electric discharge machining. The surface and profile of the recast layer of the workpiece are examined by scanning electron microscopy. The difference between the two in the crack phenomenon of the recast layer in micro electric spark machining is analyzed. Finally, some improvement measures are put forward to solve the problem of recasting layer crack on the surface of micro EDM workpiece.
Key words: Micro-EDM / Recast Layer / pulsed power supply / crack
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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