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The International Journal of Advanced Manufacturing Technology

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26-08-2020 | ORIGINAL ARTICLE

Milling performance of titanium alloy based on short electric arc machining with direct current power source

Authors: Kai Liu, Jianping Zhou, Zongjie Zhou, Yan Xu, Guoyu Hu, Li Zhang, Dan Song

Published in: The International Journal of Advanced Manufacturing Technology | Issue 5-6/2020

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Abstract

In this study, we have proposed the use of direct current (DC) power source instead of pulsed power source for solving the problems of low material removal rate (MRR), high relative tool wear ratio (RTWR), and high specific energy consumption (SEC) in short electric arc machining (SEAM). The performance of SEAM with DC was significantly improved as compared to that with medium frequency pulse (MFP). The MRR of Ti6Al4V alloy during SEAM with DC exceeded 15100 mm³/min and the ideal MRR exceeded 60000 mm³/min. Further, the RTWR and SEC were 0.7% and 36.6 kJ/cm³, respectively. The influence of tool electrode polarity and voltage on MRR, RTWR, SEC, and surface roughness were studied. The current and voltage during the entire process were measured by DEWESoft SIRIUSi multi-channel data acquisition system. Moreover, the surface morphology, cross section, chemical composition, and micro-hardness of Ti6Al4V after machining were also investigated.

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Title: Milling performance of titanium alloy based on short electric arc machining with direct current power source
Authors: Kai Liu
Jianping Zhou
Zongjie Zhou
Yan Xu
Guoyu Hu
Li Zhang
Dan Song
Publication date: 26-08-2020
Publisher: Springer London
Published in: The International Journal of Advanced Manufacturing Technology / Issue 5-6/2020
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI: https://doi.org/10.1007/s00170-020-05937-z

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