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A Study on the Development of Insulated Electrode Tip for Spot Welding to Reduce Indentation  

서승일 (한국철도기술연구원 고속철도사업단)
장상길 ((주)로템 생산기술부)
Publication Information
Journal of Welding and Joining / v.21, no.1, 2003 , pp. 42-47 More about this Journal
Abstract
Stainless rolling stocks are usually fabricated by spot welding process without painting. Indentation on the surface of the car body after spot welding injures the beauty of the stainless rolling stocks. In this study, insulated electrode tips to reduce the indentation are developed and applied to the actual spot welding works. The developed tips are composed of head, neck, hole for cooling water, body and resistance material. They provide large surface contact area with the base materials during spot welding and enhance the current density by necking. Experimental results using the developed tips show that small indentation and sufficient tensile shear strength is produced due to large contact area and enhanced current density.
Keywords
Spot welding; Indentation; Insulated cap tip; Stainless rolling stock;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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