Φ6mm-Q235钢铆钉电磁铆接工艺试验  

Experimental Investigation on Electromagnetic Riveting with Φ6 mm-Q235 Steel Rivets

作　　者：黄宗斌 韦超忠 徐志丹 崔俊佳[2,3] 李光耀[2,3] 张旭[4] HUANG Zong-bin WEI Chao-zhong XU Zhi-dan CUI Jun-jia LI Guang-yao ZHANG XU(SAIC GM Wuling Automobile Co., Ltd., Liuzhou 545000, China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China Joint Centre for Intelligent New Energy Vehicles, Shanghai 201804, China Hunan University of Science and Technology, College of Mechanical and Electrical Engineering, Xiangtan 411100, China)

机构地区：[1]上汽通用五菱汽车股份有限公司,广西柳州545000 [2]湖南大学汽车车身先进设计制造国家重点试验室,长沙410082 [3]智能型新能源汽车协同创新中心,上海201804 [4]湖南科技大学机电工程学院,湖南湘潭411100

出　　处：《精密成形工程》2017年第1期76-80,共5页Journal of Netshape Forming Engineering

基　　金：国家自然科学基金(61232014;51505139)

摘　　要：目的研究电磁铆接结构使用性能,探究该技术在汽车装配领域应用的可行性。方法开展Φ6 mm-Q235钢铆钉电磁铆接工艺试验,分析电磁铆接结构干涉配合质量、抗剪切性能以及疲劳性能。结果铆钉钉杆中间位置干涉量最大,半圆头位置的干涉量最小,平均干涉量可达1.84%;剪切测试表明电磁铆接结构最大可承受11.85 k N剪切载荷,剪切失效位置发生在铆接板交界处;最大循环载荷8.3 k N时电磁铆接结构疲劳周期高达53万次,而且疲劳失效均发生在铆钉变形较小的半圆头位置。结论电磁铆接结构干涉量、抗剪切性能和疲劳性能良好,均符合实际服役需求。To investigate service performances of electromagnetic riveted structures and explore the possibility of this technology used in car assembly field. Electromagnetic riveting experiments with Φ6 mm-Q235 steel rivets were performed in this paper. And the interference fit, shear strength and fatigue property of electromagnetic riveted structures were analyzed. The maximum interference fit located on the middle of the rivet shaft. The interference fit on the semi-circle part of rivet shaft was minimum, and the average of interference fit was 1.84%. Shear tests demonstrated that the maximum bearing shear load was 11.85 kN, and the fracture occurred between the double riveted sheets. The fatigue cycles of electromagnetic riveted structures were 53 thousand under the maximum cyclic load 53 kN. The fatigue failure occurred on the semi-circle part of rivet shaft. The interference, shear strength and fatigue property of electromagnetic riveted structures were very good, and accorded with service performance requirements.

关 键 词：电磁铆接 干涉配合 剪切性能 疲劳寿命 

分 类 号：TG938[金属学及工艺—钳工工艺]