Transactions of Materials and Heat Treatment

Title：Transverse ultrasonic vibration assisted riveting technology of CFRP laminates

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ClassificationCode：TB376.3

year,vol(issue):pagenumber：2024,49(1):154-164

Abstract：

For the problems of difficult deformation of titanium alloy rivets and uneven riveting interference amount when riveting carbon fiber reinforced polymer titanium alloy rivets, a transverse ultrasonic vibration assisted riveting technology was proposed to improve the plasticity of titanium alloy rivets and promote the even distribution of joint interference amount, and by establishing riveting experiments with different amplitudes and surface roughnesses, the relative interference amount of riveting, size deviation of upsetting head, morphology and mechanical properties were quantitatively analyzed. The research results show that the larger the amplitude is, the greater the relative interference amount is. When the amplitude is 21 μm, a more ideal relative interference amount is achieved, and the relative interference amount ranges is 1.72%-1.54%. Roughness has little effect on the relative interference amount, but the greater the roughness is, the more significant the plasticity improvement is, and the larger the size deviation of upsetting head is. In addition, the tensile experiment results show that the maximum tensile load of ordinary riveting is 4166.21 N, and the maximum tensile load of transverse ultrasonic vibration assisted riveting is 4562.32 N when the amplitude is 26 μm, which increases by 9.51%.

Funds：

2022年江苏省高职院校教师专业带头人高端研修项目（2022GRGDYX019）；2022年江苏省高校自然基金项目（22KJB460008）；2022年宿迁市科技项目（K202210）

作者简介：王星星（1989-），男，博士，讲师 E-mail：wangxx@squ.edu.cn 通信作者：朱红萍（1978-），女，硕士，副教授 E-mail：47535445@qq.com

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