Stress Forming of Fine Metal Wire Based on Ultrasonic Vibration

Abstract:

The assembling process of the flex lead of an accelerometer can bring in internal stress, which causes drift error and affects the precision of the accelerometer. The paper introduces a method using ultrasonic vibration to reduce the internal stress, discusses the theory of ultrasonic stress relief on fine wires, shows ultrasonic stress relief experimental apparatus which uses an optimized ultrasonic tool head to inflict ultrasonic vibration to fine wires. By introducing the displacements of the fine wire ends into ANSYS, changes of the internal stress of the fine wire can be obtained. The experiment studies the performance of ultrasonic vibration to fine wire internal stress and deals with the relationship between infliction time and results. The experiment results confirmed that by selecting the suitable experiment parameters, ultrasonic vibration is an effective way to internal stress relief, the internal stress decline as infliction time increase then stays.

• Periodical: Applied Mechanics and Materials (Volumes 599-601)
• Pages: 587-590
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.599-601.587
• Online since: August 2014
• Authors: Yi Luo*, Chuan Long Yang, Yue Ming Song, Xiao Dong Wang
• Keywords: Flex Lead, Internal Stress Relief, Simulation Analysis, Ultrasonic, Vibratory Stress Relief

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