Preliminary studies on friction welding of sintered P/M steel preforms to wrought mild steel
Authors: Shashank Rao, S.; Jayabharath, K.; Ashfaq, M.; Vamsi Krishna, B.
Source: Science and Technology of Welding & Joining, Volume 11, Number 2, March 2006 , pp. 183-190(8)
Publisher: Maney Publishing
Abstract:Continuous drive friction welding studies on sintered powder metallurgical (P/M) steel preforms–wrought mild steel combination are reported in the present study. The work is a preliminary study to optimise the friction welding parameters and data generated by the present work is expected to contribute to friction welding of dissimilar and similar sintered P/M preforms to wrought metals or sintered P/M preforms – a planned future research work. Sound welds were obtained with all welding parameter combinations studied. The mechanical properties of welds were comparable to those of sintered P/M steel. Sintered P/M preforms deformed to a greater extent than wrought mild steel due to their low flow stress and thermal conductivity. The sintered density and other properties of the P/M preforms were found to dictate the deformation at the interface and consequently the weld strength. The results indicate that the current approach can be extended to other combinations of sintered P/M preforms.
Document Type: Research Article
Publication date: 2006-03-01
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