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EWI Ultrasonics Work Published in INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

April 15, 2019

Temperature Measurement in the Ultrasonic-assisted Drilling Process, a paper by EWI Project Engineer Amin Moghaddas, A.Y. Yi of The Ohio State University, and EWI Principal Engineer Karl Graff, has been published in THE INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY.

The ultrasonic-assisted drilling (UAD) process is being developed due to its apparent advantages over the conventional drilling (CD) process in terms of thrust force and torque reduction and improvements in surface finish and hole accuracy. However, heat generated during UAD might affect tool life, including damage to the cutting edges of the drill. The research reported here sought to (1) find the best technique to measure temperatures in UAD, and (2) measure the effect of ultrasonic vibrations in heat generated in UAD. Five temperature measurement techniques were examined, and then the best and most reliable technique was used to investigate the effects of ultrasonic vibrations on heat generated in UAD of aluminum 6061, alloy steel 4340, and stainless steel 316. The effect of ultrasonic vibrations on thrust force was also studied.

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