Communication science et technologie

Arrangements Of Rsw Points And Welding Current Effects On Mechanical Behavior Of 304 L Steel

Auteurs : Benachour Mustapha . Benachour Nadjia . Aissaoui Féthi . Seriari Fatima Zohra . Benyoucef Abdelkader .

Résumé

The joining of thin sheets by resistance spot welding requires knowledge of the material to be assembled and the optimal welding parameters. This study is oriented to investigate the effect of welding current and the arrangement of weld points on breaking strength of the stainless steel 304L sheets experimentally. Welding current vary from 10 kA to 15 kA. Welding time and electrode force used in this study are respectively 11 cycles and 6 bars and keep constants. Tensile shear tests were conducted on resistance spot over lap joints. Results show that the distribution of weld points in the vertical direction under tensile applied stress has a strong effect on the strength and deformation of weld sheets in increasing of the welding current. Unneeded, the increase in the welding current makes it possible to increase the plastic deformation zone. The increase in the welding current causes a large fusion in welding point where the geometrical aspect is strongly affected.

Mots clés

RSW ; welding current ; stainless steel ; breaking force ; arrangement of RSW points