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Assessment of Clinching as an Alternative to Riveting and Spot Welding
Current Issue
Volume 4, 2017
Issue 4 (July)
Pages: 32-37   |   Vol. 4, No. 4, July 2017   |   Follow on         
Paper in PDF Downloads: 59   Since Jul. 24, 2017 Views: 1143   Since Jul. 24, 2017
Authors
[1]
Ľuboš Kaščák, Department of Computer Support of Technology, Technical University of Košice, Košice, Slovakia.
Abstract
The riveting and resistance spot welding are the most common methods for joining the steels of structures. However, these methods require some specific time-consuming pretreatment of joined materials such as cleaning surface before welding or drilling the holes before riveting. In addition, when galvanized steel sheets are joined, the protective layer is destroyed which lead to decreasing of corrosion resistance of structures. It is necessary to utilize the other joining methods. The paper deals with the assessment of the possibilities of mechanical joining as an alternative method to resistance spot welding and riveting. All the mentioned joints such as riveted joints, resistance spot welded joints and clinched joints are permanent joints. Those joints cannot be disassembled without damaging the assembled parts. Hot-dip galvanized structural steel sheet S250GD with the thickness of 1.5 mm and 2.5 mm were used for the experiments. Mechanical clinching is a combination of drawing and forming. The research is focused on the evaluation of joints' properties using shear tensile test and metallographic observation.
Keywords
Clinching, Riveting, Spot Welding, Shearing Load, Metallographic
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