Title :
Experimental study of multi-energy combined machining for superalloy GH188
Author :
Zhang, Yunpeng ; Sun, Guangbiao ; Zhang, Anzhou ; Yang, Zhenchao
Author_Institution :
Key Lab. of Contemporary Design & Integrated Manuf. Technol., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
In order to solve the problem of polishing superalloy in aviation and aerospace industry, proposed multi-energy combined milling of ultrasonic abrasive vibration assisted powder-mixed electric discharge machining(EDM) method. For GH188 material, experimental investigations of the influence of pulse width, pulse, peak current, abrasive density and aluminum density on the material removal rate (MRR) and surface roughness were carried out. By analyze experimental results, a set of optimized process parameters were obtained, the surface roughness can be improved to Ra0.6μm by the optimized process parameters. The experiment results indicate that ultrasonic abrasive vibration assisted powder-mixed EDM is an effective means for polishing the superalloy.
Keywords :
aerospace industry; electrical discharge machining; milling; polishing; superalloys; surface roughness; vibrations; GH188 superalloy; aerospace industry; aviation industry; material removal rate; multienergy combined machining; powder-mixed electric discharge machining; surface roughness; ultrasonic abrasive vibration; Abrasives; Aerospace industry; Aerospace materials; Aluminum; Machining; Milling; Rough surfaces; Space vector pulse width modulation; Surface discharges; Surface roughness; Multi-energy combined machining; material removal rate; superalloy GH188; surface roughness;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5535589
