Transactions of Materials and Heat Treatment

Title：Influence of ultrasonic vibration on friction coefficient between TA2 titanium alloy sheet and its contact surface

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ClassificationCode：TG306

year,vol(issue):pagenumber：2020,45(10):151-155

Abstract：

Based on the sheet sliding friction test and ultrasonic vibration assisted forming principle, the sheet sliding friction experimental device with ultrasonic vibration was designed. Taking TA2 titanium alloy sheet as the research object and the 45 steel as the contact target, the influence laws of process parameters for ultrasonic amplitude, frequency, contact surface roughness and contact force on friction force and friction coefficients between TA2 titanium alloy and 45 steel were analyzed, and the friction coefficients under different process parameters and the relationships between friction coefficient and sliding distance were obtained. The results show that the application of ultrasonic vibration can reduce the friction force and friction coefficient between TA2 titanium alloy and 45 steel. Compared with the ultrasonic amplitude, the ultrasonic frequency has a greater influence on the friction coefficient. At the same time, the friction coefficient decreases with the decreasing of contact surface roughness, and the effect is more significant after adding a certain lubricant. However, within a certain range of contact force, the influence of contact force on the friction coefficient is smaller.

Funds：

国家自然科学基金资助项目（51575364）；辽宁省高等学校创新人才计划（R2017069）；沈阳市中青年创新人才计划（RC180189）

高铁军（1977-），男，博士，教授 E-mail：tiejun_gao@163.com

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