An Experimental Study on Cutting Forces in Ultrasonic Assisted Drilling

摘要

This paper presents the effect of imposing ultrasonic vibration on conventional drilling. The cutting force was compared between conventional drilling (CD) and ultrasonic assisted drilling (UAD). With numerical calculations and analytical software (Ansys), the test structure and the horn were designed and also the vibratory behavior of the parts was predicted to have vibrations with longitudinal mode and in the direction of the tool feed, reaching to the peak at the tip of the tool. The results show a considerable improvement in drilling process due to transformation of cutting process and chip removal mechanism: In ultrasonic assisted drilling the average of the drilling thrust force along the axis of the tool decreased noticeably.