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Cutting Force of Ultrasonic Vibration-assisted Milling for Titanium Alloys
T. J. Ko(고태조),G. C. Park(박건철),R. Kurniawan(쿠르니아완 렌디),M. K. Choo(추민기),M. R. Xu(쉬모란),P. W. Han(한필완),I. J. Yoon(윤인준),Y. I. Kwak(곽예인) Korean Society for Precision Engineering 2021 한국정밀공학회 학술발표대회 논문집 Vol.2021 No.11월
Titanium alloys have great characteristics such as strong corrosion resistance, high strength-weight ratio and heat resistance. This material has been used in aviation and aerospace industries due to their superior properties. However, titanium alloys are a representative difficult-to-cut material. Ultrasonic vibration-assisted milling (UVAM) is a more effective machining method with noteworthy advantage such as prolongs tool life, low cutting force, good surface quality for difficult-to-cut material compared to the conventional milling (CM) method. In this paper, the cutting force on the titanium alloy was investigated by applying both the UVAM and CM method with the spindle rotational speed variation. As a result, the UVAM showed that the cutting force was lower than that of the CM, especially in the higher spindle rotational speed. The UVAM cutting force was decreased maximally for all cutting force components (Tangential : -11.2, Radial : -10.6, Axial : -9.1%) at 8,000 rpm spindle rotational speed.