Lightweight performance and the strength of clinched joints became the key to the development of rivet-reinforced joints. In the present study, the clinching joints of AA5052 aluminum alloy were reinforced by a solid rivet and tubular rivets with wall thicknesses of 1 mm, 1.5 mm and 2 mm, to evaluate the effect of the wall thickness on the performance of the rivet-reinforced joints. The rivet-reinforcing method using tubular rivets proved to be pronounced for increasing the energy absorption and improving the strength of the clinched joint. In the experiment, compared with the conventional mechanical clinched joint, the average shearing strength of the rivet-reinforced joint with the tubular rivet of 1.5 mm wall thickness was increased from 1608.13 to 3514.5 N, and the energy absorption of the rivet-reinforced joint with the tubular rivet of 1 mm wall thickness was increased from 0.699 to 3.894 J. In terms of lightweight evaluation performance, the rivet-reinforced joint with a 1 mm wall thickness tubular rivet offered excellent results in automobile light weighting compared with the other types of rivet-reinforced joints, and the lightweight evaluation values were \({R}_{1.0}=10.494\,\text{kN/g}\) and \({W}_{1.0}=2.159\,\text{J/g}\).

铆接接头的轻量化性能和强度成为铆钉加固接头发展的关键。在本研究中，AA5052 铝合金的铆接接头采用实心铆钉和壁厚分别为 1 mm、1.5 mm 和 2 mm 的管状铆钉加固，以评估壁厚对铆钉加固性能的影响关节。使用管状铆钉的铆钉加固方法被证明对于增加能量吸收和提高铆接接头的强度是显着的。试验中，与常规机械铆接相比，壁厚为1.5mm管状铆钉的铆钉加固接头的平均抗剪强度从1608.13提高到3514.5N，\({R}_{1.0}=10.494\,\text{kN/g}\)和\({W}_{1.0}=2.159\,\text{J/g}\)。