Cong, W. L.Pei, Zhijian J.Feng, Q.Deines, Timothy W.Treadwell, C.2012-05-022012-05-022012-05-01http://hdl.handle.net/2097/13782Drilling is involved in many applications of carbon fiber reinforced plastic (CFRP) composite. Twist drilling is widely used in industry. Rotary ultrasonic machining (RUM) has been successfully tested to drill holes in CFRP. However, there are no reports on comparisons between RUM and twist drilling of CFRP. This paper compares RUM and twist drilling of CFRP in six aspects (cutting force, torque, surface roughness, delamination, tool life, and material remove rate). Experimental results show that RUM is superior in almost all these aspects.This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Carbon fiber reinforced plastic compositeCutting forceRotary ultrasonic machiningSurface roughnessTool wearTwist drillingText