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T. J. Ko(고태조),R. Kurniawan(쿠르니아완 렌디),G. C. Park(박건철),M. R. Xu(쉬모란),P. W. Han(한필완),I. J. Yoon(윤인준) Korean Society for Precision Engineering 2021 한국정밀공학회 학술발표대회 논문집 Vol.2021 No.11월
This manuscript studies about preliminary numerical study in the 2D-UVAC (Two-dimensional Ultrasonic Vibration Assisted Cutting) mixed with the EDM (Electrical Discharged Machining) method. The commercial finite element analysis of ABAQUS 6.4 solver has been used in this research problem. The 2D-UVAC has been carried out with variation vibration frequency of 40-60 kHz, vibration amplitude for both directions about 10 μm, the constant cutting speed of 2 m/s, and constant cutting depth of 100 μm. Meanwhile, the EDM was assumed as a single Gaussian distribution heat flux with different pulsated frequency about 100 to 300 kHz with constant discharged voltage of 220 V, and discharged current of 1 A. According to numerical solution, the EDM maximum temperature can achieve about 1,200°C. By increasing pulsated frequency increases average EDM temperature thus it could decrease the average shear stress during cutting in 2D-UVAC. Therefore, the EDM brings benefit such as decreasing von-Mises stress during cutting in 2D-UVAC.