Experimental Investigation on Ultrasonic-assisted Milling for Titanium Alloy
Due to the poor machinability of titanium alloys,it is difficult to achieve high-precision machining using traditional machining techniques.Ultrasonic machining,which applies vibration to the tool head to improve machining efficiency,can be introduced into titanium alloy machining to improve the machining performance of titanium alloys.In order to improve the machining performance of titanium alloy,this study carried out ultrasonic-assisted milling titanium alloy process experiments by side milling and end milling,respectively.The effects of different cutting parameters and cutting forms of rotary ultrasonic machining on titanium alloy milling were investigated,and the cutting force,surface roughness and surface microstructure of the workpiece after machining were measured.The results showed that in side milling,ultrasonic assistance can reduce the vibration in the machining process,reduce the cutting force and improve the surface quality of the workpiece.In end milling,ultrasonic assistance will reduce the cutting force of the machining process,but in the machining process,due to the ultrasonic vibration acting on the surface of the workpiece to form a micro-texture,although the uniformity of the surface morphology of the workpiece is improved,the surface roughness of the workpiece is also increased.
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