自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 23    No. 10    October 2016

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Improving energy utilization efficiency of electrical discharge milling in titanium alloys machining
GUO Cheng-bo(郭成波)1, WEI Dong-bo(韦东波)1, 2, DI Shi-chun(狄士春)1

1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;
2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract:Electrical discharge milling (ED-milling) can be a good choice for titanium alloys machining and it was proven that its machining efficiency can be improved to compete with mechanical cutting. In order to improve energy utilization efficiency of ED-milling process, unstable arc discharge and stable arc discharge combined with normal discharge were implemented for material removal by adjusting servo control strategy. The influence of electrode rotating speed and dielectric flushing pressure on machining performance was investigated by experiments. It was found that the rotating of electrode could move the position of discharge plasma channel, and high pressure flushing could wash melted debris out the discharge gap effectively. Both electrode rotating motion and high pressure flushing are contributed to the improvement of machining efficiency.

 

Key words: electrical discharge milling; electrode rotating; dielectric flushing; energy utilization efficiency; material removal rate; tool electrode wearing rate

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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