首页|Influence of overhanging tool length and vibrator material on electromechanical impedance and amplitude prediction in ultrasonic spindle vibrator

Influence of overhanging tool length and vibrator material on electromechanical impedance and amplitude prediction in ultrasonic spindle vibrator

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This study presents the development of an ultrasonic transducer with a radius horn for an ultrasonic milling spindle(UMS)system.The ultrasonic transducer was intended to have a working frequency of approximately 30 kHz.Two different materials were considered in the study:stainless steel(SS 316L)and titanium alloy(Ti-6Al-4V).Titanium alloy gave a higher resonance frequency(33 kHz)than stainless steel(30 kHz)under the same preload compression stress.An electromechanical impedance simulation was carried out to predict the impedance resonance frequency for both materials,and the effect of the overhanging toolbar was investigated.According to the electromechanical impedance simulation,the overhanging toolbar length affected the resonance frequency,and the error was less than 3%.Harmonic analysis confirmed that the damping ratio helps determine the resonance amplitude.Therefore,damping ratios of 0.015-0.020 and 0.005-0.020 were selected for stainless steel and titanium alloy,respectively,with an error of less than 1.5%.Experimental machining was also performed to assess the feasibility of ultrasonic-assisted milling;the result was a lesser cutting force and better surface topography of Al 6061.

Ultrasonic spindleUltrasonic vibration assisted-milling(UVAM)1-degree of freedom(DOF)FrequencyAmplitudeMilling

Rendi KURNIAWAN、Moran XU、Min Ki CHOO、Shuo CHEN、Yein KWAK、Jielin CHEN、Saood ALI、Hanwei TENG、Pil Wan HAN、Gi Soo KIM、Tae Jo KO

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Precision Machining Laboratory,Department of Mechanical Engineering,Yeungnam University,Gyeongsan-si,Gyeongbuk-do,Republic of Korea

Korea Electrotechnology Research Institute(KERI),Changwon-si,Gyeongsangnam-do,Republic of Korea

KASWIN Co.,Ltd,Changwon-si,Gyeongsangnam-do,Republic of Korea

Korea Electrotechnology Research Institute(KERI)Primary Research Program through the National Research Council of Science&TechnoMinistry of Science and ICT(MSIT)in 2023韩国国家研究基金会项目Korean Government(MSIT)

23A01021RS-2023-00278890

2024

10.1631/jzus.A2300243

浙江大学学报(英文版)(A辑:应用物理和工程)
浙江大学

浙江大学学报(英文版)(A辑:应用物理和工程)

CSTPCD
影响因子：0.556
ISSN：1673-565X
年,卷(期)：2024.25(4)
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