Shear force analysis of Resistance Spot Welding of Similar and Dissimilar Material: copper and carbon steel

Abstract

Resistance spot welding (RSW) is a complicated process, which involves the interaction of electrical, thermal, mechanical, and metallurgical phenomena. In this research we used two types of material (UNS G10050 carbon steel and UNS C10010 copper) and welded them in similar and dissimilar condition with four variables welding current, pressure, squeeze time and welding time. The results of the tensile-shear force were analyzed statistically by the Design of experiments (DOE) utilizing Taguchi method. Tensile-shear test used for counting the strength of the joint, maximum strength was found in similar joining condition for carbon steel, also it is interesting to note that the strength of dissimilar joint is stronger than copper joining in similar condition.

Effect of Welding Time Variation in Resistance Spot Welding on Mechanical Properties of Dissimilar Joints on Mild Steel and AISI 304 Stainless Steel

“…With increasing welding time, higher tensile strength is obtained, this is because the heat input that occurs is also greater, resulting in a strong tensile strength. But the connection is not always better, in the dissimilar metal point weld connection there is a condition where at 8 seconds the tensile strength decreases, this happens because the heat input exceeds the melting point of the material used so as to produce a wide weld metal area and deep penetration area, then the welding result will be damaged [19][20][21].…”

Investigating Spot Weld Fatigue Failure with Experimental and Finite Element Analysis Methods

“…Figure 19 shows the validation of the simulated tensile shear force with forces obtained experimentally and from the literature review. The weld strength and differences (assuming differences between simulated results and validation results) can also occur due to parameter setup in the FE analysis, for example, mesh type and size [65].…”

Elektrik direnç punta kaynağı ile üçlü birleştirilen FEP05/DP600/FEP05 çelik saclarda kaynak parametrelerinin mekanik özelliklere ve mikroyapı üzerindeki etkilerin araştırılması

“…Dolayısıyla otomobil endüstrisinde kullanılan yüksek dayanımlı çeliklerin birleştirilmesi önemli bir araştırma konusudur [8][9][10][11]. Araştırmacılar kaynak kalitesine giderek daha fazla odaklanmaktadır [12][13][14][15]. Kaynak akımı, kaynak zamanı, levhalara uygulanan elektrot baskı kuvveti, malzeme kalınlığı ve elektrot çapı gibi çeşitli faktörler elektrik direnç punta kaynağı kalitesini etkilemektedir [16][17][18][19].…”