Comparison of Single- and Multiple-Spot ResistanceWelding of Sub-millimeter Thick SS304 and SS316 Sheets

被引：0

作者：

Waghmare, Dhanraj B. ^{[1
]}

Saha, Partha ^{[2
]}

机构：

[1] Dr Babasaheb Ambedkar Technol Univ, Lonere 402103, Raigad, India

[2] Indian Inst Technol Kharagpur, Kharagpur 721302, W Bengal, India

来源：

ADVANCES IN ADDITIVE MANUFACTURING AND JOINING, AIMTDR 2018 | 2020年

关键词：

Resistance welding; Shear strength; Microstructure; MECHANICAL-PROPERTIES; WELD ATMOSPHERE; WELDABILITY; QUALITY; TIME;

D O I：

10.1007/978-981-32-9433-2_40

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Resistance spot welding is widely used for various industrial applications like in tailored blank welding. An attempt was made to study resistance welding process with multiple overlapped spots. Resistance spot welding machine was used to weld stainless steel sheets of sub-millimeter thickness. For this purpose, SS304 and SS316 sheets of 0.8mmthickness were selected and welded. The welded joints were tested to check their tensile shear strength. It was observed that for both the stainless steel sheets, the shear strength of welded joint of multiple-spot welded joints was higher than single-spot welded joints. For both, single and multiple welded joints, the shear strength increased up to 20-25 welding cycles and thereafter got reduced, because ofmore HAZ. The coarsening of the grain structure which resulted in reduced strength was also verified by the microstructure analysis.

引用

页码：461 / 473

页数：13