1. Paper Survey Compound machining of titanium alloy by super high speed EDM milling and arc machining Fei Wang, Yonghong Liu ∗, Yanzhen Zhang, Zemin Tang, Renjie Ji, Chao Zheng College of Electromechanical Engineering, China University of Petroleum, Dongying 257061, China Advisor : Tzu-Yao Tai Advisee ﹕ Yu-Hsiang Hsueh Department of Mechanical Engineering Southern Taiwan University of Science and Technology Date ﹕ 2015/05/25

2. Outline  Introduction  super high speed EDM milling and arc machining  Comparative experiments  Microhardness analysis  Metallographic microscopes of Ti6Al4V  SEM photographs of machined surface cross section  Photographs of machining example

3. super high speed EDM milling and arc machining

4. compound machining with peak current of 700 A. machine tool

5. Comparative experiments-1

6. Comparative experiments-2

7. Microhardness analysis

8. Metallographic microscopes of Ti6Al4V

9. SEM photographs of machined surface; cross section.

10. (a) 700 A (b) 100 A (c) 30 A Photographs of machining example