Electro-discharge machining of metal matrix composites - a review

Pradhan, Rahul Chandra; Das, Diptikanta

doi:10.1016/j.matpr.2020.04.274

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…ASP23 and ASP30) which are difficult for mechanical processing. The most common processing method is electrosparking [1,2]. However, existing electrosparking cannot meet the increasing processing quality requirements of high-density semiconductor encapsulation mould.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Electrosparking of Tool Electrode Forced Cooling Based on Micro Heat Pipe Bundle

Wang

Wang³

et al. 2021

KEM

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An electrosparking experiment of ASP30 powder metallurgical steel was carried out through tool electrode forced cooling based on micro heat pipe bundle by using the semiconductor encapsulation mould. Results demonstrate that the micro groove formed among sintered copper fibers based on wick of micro heat pipe and the unique composite structure of the surface chopped morphology can not only increase capillary pressure of the wick, but also strengthen evaporation/condensation process at two ends of the micro heat pipe, and improve cooling effect of micro heat pipe to tool electrode significantly. Compared with traditional electrosparking, electrosparking of tool electrode forced cooling based on micro heat pipe bundle increases the inter-electrode cooling, chip removal and deionization of electrosparking and further lowers tool electrode loss by strengthening heat dissipation of tool electrode. Hence, it can improve stability of electrosparking, increase pulse utilization and increase the processing speed and processing surface quality significantly.

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Section: Introductionmentioning

confidence: 99%