Effects Current and Distance Nuggets of Micro Resistance Spot Welding on Battery Lithium and Stainless Steel SUS 304
A.Sifa*, B. Badruzzaman, F. Dionisius, E. Wrisaba

Politeknik Negeri Indramayu

Abstract

Micro resistance spot welding is welding that is widely used in welding the cylindrical lithium battery 18650 because the process is easy. Stainless Steel SUS 304 with a thickness of 0,2 mm is used as a connection plate and the lap joint is a connection that is used on the lithium battery because the connection form is designed to facilitate the welding process, this study purpose to know the effects of nuggets distance and current, The method in this study is the simulation of static and experimental with parameters of currents 14 A, 16 A, 18 A and the distance of nuggets 12 mm, 8 mm, and 4 mm, measure the HAZ and nugget from welding are seen using a digital microscope with a magnification of 100 times, and shear test with 100 N / min load. The simulation and experimental results show the same trend, welding with a 4 mm electrode distance has maximum stress. The area of HAZ widest on the current 14 A have 1,8 mm2, and the area of nugget widest on the current 18 A have 0,08 mm2.

Keywords: Micro Resistance Spot Welding, Lithium Battery 18650,Stanless Steel SUS 304

Topic: Mechanical Engineering