The discussions relative to cold stamping are applicable to any forming operation occurring at room temperature such as roll forming, hydroforming, or conventional stamping. Similarly, hot stamping refers to any set of operations using Press Hardening Steels (or Press...
Resistance Spot Welding AHSS to Magnesium
This blog is a short summary of a published comprehensive research work titled: "Peculiar Roles of Nickel Diffusion in Intermetallic Compound Formation at the Dissimilar Metal Interface of Magnesium to Steel Spot Welds" Authored by Luke Walker, Carolin Fink,...
Process, Microstructure and Fracture Mode of Thick Stack-Ups of Aluminum Alloy to AHSS Dissimilar Spot Joints
This article summarizes a paper entitled, "Process, Microstructure and Fracture Mode of Thick Stack-Ups of Aluminum Alloy to AHSS Dissimilar Metal Spot Joints", by Luke Walker, Colleen Hilla, Menachem Kimchi, and Wei Zhang, Department of Materials Science and...
Microstructural Evolution and Effect on Joint Strength in Laser Welding of DP to Aluminium
Given the use of many different metals in the Body in White construction, it is important to understand the effects of dissimilar welding AHSS. Researchers at Indian Institute of Technology Madras in Chennai, India and Centre of Laser Processing of Materials in...
Solid State Welding of Steel to Aluminum
Introduction Mechanical Joining Clinching Self-Pierce Riveting Flow Drill Screw Process Solid State Welding Ultrasonic Welding Friction Welding Diffusion Bonding Resistance Spot Welding Hybrid Welding Processes Introduction Multi material design approach is the...
Ultrasonic Assisted RSW
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...
REM of Aluminium/Steel
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...
Aluminium/Steel Using Cover Plates
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...
Aluminium/Steel Using Interlayer
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...
Direct RSW of Aluminium to Steel
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...








