In-situ resistance measurements of aluminized 22MnB5 steel using a current ramp of 500 A/ms at welding force levels from 2 kN to 8 kN were conducted to obtain data on the dynamic resistance behaviour in spot welding of the material for varying mechanical and electrical loads. The data has been successfully used to calibrate a numerical transition resistance model (KMK-model, Kaars et al., 2016 ...

Resistance spot welding is used to join two or more metal objects together, and the technique is in widespread use in, for example, the automotive and electrical industries. This paper discusses both the identification of different spot welding processes and the process initialization parameters leading to highquality welding joints. In this research, self-organizing maps (SOMs) were used, and ...

It is considered to be available in reducing the weight of automobiles that the aluminum alloy is applied to manufacture them. The spot welding of aluminum alloys is difficult because of high welding current and small electrical resistance. It is necessary to clarify the relation between the nugget formation and the welding conditions. In this study, the relation between the spot welding condit...

The goal of the work is the research of formation mechanism of the spot resistance welds in the case of copper wires with nickel and tin coatings. The existing approaches for investigation of the formation mechanisms of welds of wires with and without coatings are analysed. A new approach for modeling of welding joint formation is offered. The analog model of the heat input during resistance we...

The objective of this work is to study the effect of parameters on resistance spot weld of ASS316 material. In order to study the significance of the process parameters i.e. current, electrode force and weld cycles, towards the percentage improvement in material hardness. It is clear from the results that parameters significantly affect both the mean and the variation in the percentage improvem...

Resistance spot welding (RSW) has been used widely to join sheet metals. It has been a challenge to get required weld quality in spot welding of dissimilar thickness materials. Weld parameters are not generally available in standards for thickness beyond 4mm. This paper presents the welding process design and parameter optimization of RSW used in joining of low carbon steel sheet of thickness 0...

In order to study the effect of spot welding parameters such as welding force, welding time and welding current intensity on nugget formation and its size in resistance spot welding process of CR3 low carbon steel sheets using ANSYS commercial software package. A 2D axisymmetric electro-thermo-mechanical finite element (FE) model is developed to simulate the nugget forming process and to predic...