Research on Resistance Spot Welding of Stainless Steel.

WELDING RESEARCH WELDING JOURNAL 123-S ABSTRACT. An expulsion model has been developed for resistance spot weld- ing, based on consideration of the interac-tion between mechanical and metallurgi-cal processes during welding. An expulsion criterion is proposed by com-paring the electrode force with that from the liquid nugget; expulsion occurs when the latter exceeds the former. An effective.

The process parameters and quality of resistance spot welding for DP980 dual phase steel were studied through the orthogonal experiment method, and the influence of welding current, welding time and electrode force on the strength of welding joint has been discussed. The results show that the welding current has the greatest influence on the quality of welding joint for DP980 dual phase steel.

Resistance Spot Welding (RSW) is processed by using aluminum alloy used in the automotive industry. The difficulty of RSW parameter setting leads to inconsistent quality between welds. The important RSW parameters are the welding current, electrode force, and welding time. An additional RSW parameter, that is, the electrical resistance of the aluminum alloy, which varies depending on the.

In this paper, a Nondestructive Testing (NDT) system is set up based on ultrasound pulse-echo method for detecting manufacturing defects and measuring the indentation depth and nugget diameter of resistance spot welding. In order to verify the accuracy of indentation depth and nugget diameter measured by the NDT system, the inspection results are compared with metallographic analysis. In.

Resistance Welding is a thermo-electric process where heat is generated at the interface of the parts to be joined by passing an electrical current through them or a precisely controlled time and under a controlled pressure (also called force). The name “resistance” spot welding derives from the fact that the resistance of the workpieces and electrodes are used in combination or contrast.

We offer a comprehensive technical support service to assist with any resistance welding-related queries. Resistance welding has an excellent track record for producing quality joints in sheet materials. In the European automotive industry alone, more than 150 million resistance spot welds are made each day.

A 780 MPa galvanised dual phase (DP) steel was two-, three- and four-layer resistance spot welded under different welding parameters and joint configurations. The splash situation, nugget sizes and tensile shear properties of the spot welds were evaluated systematically. The results showed that the splash occurring current increased in the order of two-, three- and four-layer spot welds owing.

Spot Welding Hot Stamped Steels with SORPAS: The Welding Journal, August 2019: A Multi-Disciplinary Approach to Optimizing the Resistance Welding Process: 5th International Advances in Resistance Welding Seminar, Toronto, 2008: Saving Time and Money with Resistance Welding Simulation Software: The Welding Journal, July 2008.

Research Paper. Application. Being a welder is a great occupation What is welding, and how does it work? Not many people know what welding is or how it works. According to Mary Bonk“welding is the process of heating and melting metal parts to join them together” (Bonk,3). A welding machine uses electricity to melt the electrode, fusing one piece of metal to.

Resistance spot welding is an important part of the automotive manufacturing industry. Today's automobiles typically contain five-thousand or more welds. Spot welding is attractive to the industry for its speed and relative simplicity, however, it is not without its disadvantages. Current spot welding technology relies on volumes of empirical data to set the welding parameters. Often this data.

This paper presents a review on techniques of monitoring resistance spot welding process or weld quality, and the advantages as well as limitations of these techniques are discussed. Resistance spot welding has been widely used for joining sheet metals, especially in automotive and aerospace industries.

Welding engineers must understand the properties behind the joining of materials to ensure that joined structures are safe and a benefit to society. Welding engineers have expertise in materials science, including steels, nonferrous alloys and polymeric materials, and in process technology, including arc welding, lasers, resistance welding, brazing and soldering. They also are experts in.