EWI Ultrasonics Work Published in INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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.
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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