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

Guang Qu; Dong Sheng Wang; Qun You Wang; Meng Zhang Hua

doi:10.4028/www.scientific.net/KEM.904.375

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 904An Experimental Study on Electrosparking of Tool...

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

Abstract:

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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Periodical:

Key Engineering Materials (Volume 904)

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375-381

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.904.375

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Online since:

November 2021

Authors:

Guang Qu, Dong Sheng Wang*, Qun You Wang, Meng Zhang Hua

Keywords:

ASP30 Powder Metallurgical Steel, Electrosparking, Micro Heat Pipe Bundle, Tool Electrode Forced Cooling

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