Researches about Mechanical Characteristics of some Steels Resistance Spot Welded

Abstract:

This work studies the influence of resistance spot welding (RSW) process upon the mechanic characteristics of three steel grades: S235JR, galvanized S235JR and austenitic stainless grade 304L. The variable parameter was the welding current. Constant parameters were the pressure (6 bars) and the welding time (5 cycles). Micro hardness and tensile-shear resistance tests were done. Welded joint hardness profile reveal a relative softer nuclei surrounded by the hardest zone and a progressive decrease throughout the heat affected zone (HAZ) to the unaffected material. The shear resistance depends upon the welding intensity as well as metal grade.

• Periodical: Applied Mechanics and Materials (Volume 371)
• Pages: 265-269
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.371.265
• Online since: August 2013
• Authors: Marius Ioan Chirileanu, Diana Antonia Gheorghiu
• Keywords: Mechanic Caracteristics, Microhardness, Resistance Spot Welding, Structural Caracteristics

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