Research on the characteristics of debris particles in short electric arc milling of GH4169

doi:10.16731/j.cnki.1671-3133.2024.02.012

Abstract

Abstract: As a product of Electrical Discharge Machining (EDM),debris particles can not only reflect the state of the discharge gap but also help to understand the mechanism of material removal.Therefore,debris particles have always been a research hotspot in the field of EDM. As a novel,high-efficiency EDM method,Short Electric Arc Milling (SEAM) has problems such as poor chip removal and frequent short cir cuits.Based on the above problems,debris particles were used as the research object. Firstly,the microscopic morphological characteristics of the debris particles were studied,and the effects of different workpiece polarity,electrode materials,voltage,duty cycle and frequency on particle size distribution of the debris particles were discussed from the perspective of discharge energy. The influence of particle size distribution of the debris particles on the processing quality was further summarized. Guidance for revealing the material erosion mechanism,improving the gap chip removal performance and enhancing the stability of the machining process was provided.

Key words: debris particles, Short Electric Arc Milling(SEAM), mechanism of material removal, particle size distribution

CLC Number:

TG661

MA Xinyang, CHEN Xiaokang, WANG Kedian, ZHOU Jianping. Research on the characteristics of debris particles in short electric arc milling of GH4169[J]. Modern Manufacturing Engineering, 2024, 521(2): 86-92.

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