Fundamentals and Principles of Resistance Welding Resistance welding processes represent a family of industrial welding processes that produce the heat required for welding through what is known as joule (J = I Rt) heating. Much in the way a piece of wire will...
Recently research at the Ohio State University is developing methods that combine the benefits of ultrasonic welding and resistance spot welding. Y. Lu and co-workersL-10 developed the ultrasonic plus resistance spot welding process (U+RSW). In this process thin...
In order to improve the microstructure and mechanical properties of Aluminium/Steel resistance spot weld joints, Qiu et al.Q-6 tried a new welding method called resistance element welding (REM), i.e, resistance spot welding with a rivet. In this joining method, a hole...
In order to reduce welding current and improve heat balance during resistance spot welding of aluminium alloy to steel, Qiu et al.Q-1, Q-2, Q-3, Q-4, Q-5 has investigated resistance spot welding of Aluminium/Steel with a cover plate on the aluminium alloy side. A 1 mm...
In order to reduce the thickness of brittle intermetallic compound (IMC) formed at Aluminium/Steel interface to improve the mechanical properties of resistance spot welding of Aluminium/Steel, different interlayers, such as Al-cladded steelS-16, O-3, Y-4, Al-Si...
Figure 1 shows a typical cross-section of a resistance spot weld (RSW) joint of 1 mm-thick H220 Zn-coated High-Strength Steel and 1.5 mm-thick 6008-T66 aluminium alloy. Based on resistance spot welding process simulation by ANSYS, the Al/Steel interface temperature is...
Capacitive Discharge Welding (CDW) is a similar process to RSW except large amount of energy is released in relatively a short amount of time. A research group at The Ohio State University working under supervision of Dr. Menachem Kimchi and Jerry Gould from EWI has...
Among various dissimilar material combinations, Al-steel is one of the most desirable combination. This section will address the number of fundamental issues faced during al-steel joining. Later section will discuss the current approaches to overcome these issues....
Multi-material design approach involves using High-Strength Steels and low-density materials, such as aluminium. The key idea is to utilize the right material for the right application in such a way that it should fulfill the service requirements and achieve mass...