|About this Abstract
||Materials Science & Technology 2019
||Advances in Zinc-coated Sheet Steel Processing and Properties
||The Influence of Electrode Geometry on the Liquid Metal Embrittlement Cracking in Resistance Spot Welding of Advanced High Strength Steel
||Yeongdo Park, Siva Prasad Murugan
|On-Site Speaker (Planned)
The effect of electrode geometry and electrode type on the LME sensitivity are investigated with experimental and finite element method. Influence of the electrode type, as well as the specific geometric parameter on electrical-thermal-mechanical characteristics, and hence LME is studied commercial dome type and flat type electrodes were selected as electrode types tip diameter (d) and radius of curvature were varied experimentally and numerically see the individual effect of these parameters. Larger radius of curvature and tip diameter of radius type electrode enabled higher contact area at the E/S interface which in turn caused lower current density and contact pressure and higher heat dissipation. As a result, the temperature, tensile stress and liquefaction of zinc were reduced and hence LME cracking was decreased considerably.
||Definite: At-meeting proceedings