Heat-assisted hole-clinching process for joining magnesium alloy and ultra-high-strength steel

被引:7
作者
Han, Shanling [1 ]
Wang, Zhiyong [2 ,3 ]
Wang, Zhipeng [2 ]
Li, Zhiyong [2 ]
Li, Yong [1 ]
机构
[1] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao, Peoples R China
[2] Shandong Univ Sci & Technol, Coll Transportat, Qingdao, Peoples R China
[3] Binzhou Univ, Coll Mechatron Engn, Binzhou, Peoples R China
关键词
Heat-assisted hole-clinching; Magnesium alloy; Ultra-high-strength steel; Damage· Formability; ALUMINUM-ALLOY; DESIGN; SHEET; BEHAVIOR; JOINTS; CFRP;
D O I
10.1007/s00170-021-07214-z
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Due to the limited formability of magnesium alloy and ultra-high-strength steel, joining by forming of these dissimilar materials is still a big challenge, which requires suitable manufacturing technologies. To join both of the two limited formability materials, a heat-assisted hole-clinching process was investigated using numerical method and experiment test; AZ31B was chosen as the material of the upper sheet, and the numerical model was built in the DEFORM-2D software; isothermal thermo-dynamic coupling method was used to analyze the effect of upper sheet temperature on its formability during hole-clinching using the proposed numerical model and experiment tests. Meanwhile, the stress developing during hole-clinching which causes material fractures were analyzed, and damage distribution and fracture evolution were investigated. The results showed that the heat-assisted hole-clinching process can be predicted by the proposed numerical model; the formability of magnesium increased significantly as upper sheet temperature is raised; AZ31B and 22MnB5 can be joined using a hole-clinching method with the usage of heat. The results point to the applicability of the heat-assisted hole-clinching process to the joining of two limited formability materials.
引用
收藏
页码:551 / 561
页数:11
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