High Impact Factor : 4.396 icon | Submit Manuscript Online icon |

A Method For Determining The Residual Stresses Induced During A Modified Version Of Friction Tapered Plug Welding Process In Aluminium Alloys


Mohamed Harraz , German University in Cairo, Cairo, Egypt; Brando Okolo, German University in Cairo, Cairo, Egypt


residual stresses, friction tapered plug welding, push-out test, aluminium.


in this work a method for determining the residual stresses induced at the center and around a modified friction taper plug welding (FTPW) process in aluminium alloys is introduced. The strategy developed in this work depends on the principal idea of the hole-drilling method (HDM). Basically, the hole-drilling method relies on measuring the stress relaxation when material is removed by a hole that is drilled into the center of a rosette strain gauge. From the measured magnitude and direction of the strain relaxation, principal residual stresses can be calculated. In this approach the FTPW is modified such that the tapered plug is being removed by pushing it out from the other side after being friction welded into the material. The extent of the strain relief is monitored by three gauges placed around the welded plug during the push-out test and therefore the direction and magnitude of the principal stresses can be calculated. The result of the analysis of residual stresses induced during the FTPW shows a clear correlation to the result of the push-out test and therefore gives an in-depth understanding of the effect of the modified FTPW process on the material surrounded.

Other Details

Paper ID: IJSRDV1I10006
Published in: Volume : 1, Issue : 10
Publication Date: 01/01/2014
Page(s): 2070-2073

Article Preview

Download Article