The investigation of mechanical properties of four layer spot welding

Nadzri, Muhammad Asyhraf (2018) The investigation of mechanical properties of four layer spot welding. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This Final Year Project outlines the background of the "Fourth Welding Layer Mechanical Properties project”. Resistance spot welding is a relatively simple heat generation process: the current passage through heat-generating resistance. This is the same principle used in the operation of coil heating. In addition to bulk barriers, relationship barriers also play a major role. Relationship resistance is influenced by surface conditions. Four-point resistance welding is a more challenging endeavour than three-point resistance welding. This is due to several interference factors. The strength of a car's structure depends on the mechanical properties and structure of a weld. Therefore, this report aims to investigate the mechanical properties of the welded welds of four points compared to the mechanical properties of the three-point welding. This project contains the methodology that has been studied and identified. In this study, the strength of the joint test shear tensile strength of the round joints in the welding point on the high steel strength of 0.7mm thickness welded four layers has been studied. All results are then compared to three layers of 0.7mm welds. Three layers of 0.7mm welded joints are used as a benchmark for this study.

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