Joinability and Mechanical Properties of Clinched Joints of Different Aluminum Alloys

Materials Science and Technology

2023

With the wide application of lightweight materials, the metal–polymer multilayer structure has become a research focus owing to the advantages of lower weight and higher vibration damping. In the current work, the mechanical clinching process of the metal–polymer multilayer structure between Al5052-H32 and polyoxymethylene was investigated. The effect of diverse plate configurations and different test specimen forms on the mechanical characteristics was analysed in terms of geometric parameters, static strength, failure modes and energy absorption. The results showed that the metal–polymer multilayer structure could be successfully connected utilizing the mechanical clinching process. The cross-tension load and lap-shear load of the joint were greatly affected by the plate configuration as well as the test specimen form.

Section: Failure Mode Of Clinched Jointmentioning

confidence: 99%

Research on the mechanical clinching process for the metal–polymer multilayer structure

Ouyang

Materials Science and Technology

2023

“…This method is specially adapted to the connection of metal materials with poor forming properties. As for the joining dissimilar materials, the mechanical clinching technology also performs well [24,25]. Currently, the most common clinching process for dissimilar materials are mainly focused on the connection of high-strength steel/aluminium alloy [17], aluminium alloy/carbon fibre reinforced polymer [26] and aluminium alloy/titanium alloy [27].…”

Section: Introductionmentioning

confidence: 99%

Failure analysis of single-point butt clinched joint with dissimilar aluminium alloy sheets

Ren

Materials Science and Technology

2023

To explore the failure principle of single-point butt clinched joints, the AA5052 and AA6061 sheets were employed to produce the single-point butt clinched joints. The microscopic morphology of the fracture surface, geometrical parameters, static strength, energy absorption and failure details of the joints were analysed. The experimental results showed that fracture forms of sheet materials are the same as ductile fracture. The sheet combination has a significant influence on the mechanical properties of the single-point butt clinched joint, which is ultimately due to the different mechanical properties of the basal sheets. The single-point butt clinching process proposed in this work contributes to simplifying the clinching process while increasing the joining efficiency.

“…For the extensible die, the impact of tool parameters, material flow, and different sheet materials on the joint mechanical behavior has also been comprehensively analyzed. [24][25][26][27] Furthermore, the failure mechanism and failure mode of the extensible die joint have been systematically explained by Zhang et al 28 and Lei et al 29 According to those studies, four failure modes consisted of neck fracture, button separation, hybrid neck fracture, and hybrid button separation. 29 There were two fretting wear modes in the fatigue failure process of mechanical clinched joints, such neck fretting wear and surrounding-joint fretting wear.…”

Section: Introductionmentioning

confidence: 99%

“…The experimental consequences reported that the fatigue strength of the mechanical clinched joints was significantly higher compared with the resistance spot welded joints. For the extensible die, the impact of tool parameters, material flow, and different sheet materials on the joint mechanical behavior has also been comprehensively analyzed 24–27 . Furthermore, the failure mechanism and failure mode of the extensible die joint have been systematically explained by Zhang et al 28 and Lei et al 29 According to those studies, four failure modes consisted of neck fracture, button separation, hybrid neck fracture, and hybrid button separation 29 .…”

Section: Introductionmentioning

confidence: 99%

Research on the rectangular clinching process for metal and polyoxymethylene sheets

Ouyang

J of Applied Polymer Sci

2022

Polyoxymethylene (POM), as an energy‐saving material, is widely applied in the manufacturing field. Yet, research on the rectangular clinching process between metal and POM sheets is still lacking. In this paper, the rectangular clinching process for POM and Al5052‐H32 plates was investigated. The feasibility of the metal–polymer hybrid component had been analyzed in terms of diverse forming forces and diverse joint layout angles, respectively. The mechanical characteristics were appraised by the lap‐shear test. The failure modes of rectangular clinched joints produced under diverse forming conditions had also been analyzed. The results showed that the optimal forming force of rectangular clinched joints was 14 kN, in which the lap‐shear strength was 1090 N. Furthermore, the rectangular clinched joints produced under the joint layout angle of 90° could withstand the maximum lap‐shear load (1415 N) under the optimal forming force. The failure mode was the separation of two plates and the fracture of the bridge structures.