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Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 146896, 6 pages
http://dx.doi.org/10.1155/2013/146896
Research Article

The Spot Weldability of Carbon Steel Sheet

1Faculty of Geosciences and Geoengineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Straße 12, 09599 Freiberg, Germany
2Baghdad University, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, Iraq
3Baghdad University, College of Engineering, Baghdad, Iraq

Received 12 May 2013; Revised 25 August 2013; Accepted 5 September 2013

Academic Editor: Daolun Chen

Copyright © 2013 A. M. Al-Mukhtar and Q. Doos. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The specimens of thickness 0.8 mm carbon steel number 1.8902 in a strip form were welded. The strips of lap joints and curved peeljoints configurations have been welded. The welding parameters such as weld current and weld time have been investigated. The relation between the weld area and the joint strength properties has been presented. The obtained results were showing that the weld joint strength and the molten area (weld nugget volume) highly increase with the increasing of weld current. Therefore, the correlation between the maximum load (joint strength) and area has been given. The reliable weldability under the tensile and shearing loading was considered. Therefore, the new limits of weldability have been presented to consider these two types of loading. Moreover, the experimental results were compared with the empirical relations that consider the sheet thickness only.