Effects of Rivet Height and Edge Distance on Self-piercing Riveting Quality
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摘要: 自冲铆接工艺参数选取对连接件的性能影响很大,通过试验分析了铆钉高度和板料边距对铆接连接件强度的影响。在不同板料边距的情况下,用直径为5.3 mm不同高度的半空心铆钉对两层1 mm钢板进行铆接,并且对连接件进行拉伸试验,得到载荷-行程曲线。试验结果表明:在相同边距下,铆钉高度约高于铆接板料高度3 mm时,铆接效果好;铆钉与板料边缘的距离小于10 mm时,对连接强度会产生影响,并且边距越短,强度越低。Abstract: Process parameters of self-piercing riveting have significant effects on the performance of the rivet joints. In this paper, the influence of rivet height and edge distance on joint strength is analyzed by experimental method. In different rivet edge distances, two steel sheets with 1 mm thickness were riveted together with semi-tubular rivets which have a diameter of 5.3 mm and different heights. Tensile tests of rivet joints were conducted, and the load-displacement curves were obtained. The results show that self-piercing riveting quality is good when rivet is 3 mm higher than riveting sheet. When the rivet edge distance is less than 10 mm, it will have an impact on the rivet joint strength, and the shorter the rivet edge distance, the lower the joint strength.
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Key words:
- self-piercing riveting /
- semi-tubular rivet /
- rivet edge distance /
- static strength
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