Influence of speed on friction welding of low alloy to stainless steel

In friction welding, Rotational speed (i.e. the relative speed at the friction surfaces) has all along been regarded as a variable that exerts a less dominant influence compared to friction pressure, forge pressure and friction time.The Welding Institute, United Kingdom suggested that sound welds can be obtained through continuous drive friction welding in wide range of steels of different diameters at peripheral velocities in the range of 1.0 to 3.0 m/s. For the AISI 304 grade austenitic stainless steel and AISI 4140 grade low alloy steel dissimilar material combination the optimum speed range is not known for the given combination of the parameters. It was therefore investigated the influence of rotational speed on the friction welding process.

Autorentext

Dr. G. Subash Chander verfügt über 27 Jahre Erfahrung in der Lehre und 6 Jahre in der Forschung. Er machte 1988 seinen Bachelor-Abschluss am JNTU CoE, Hyderabad und 1991 seinen M.Tech-Abschluss am REC, W. Seinen Doktortitel erwarb er am NIT, W unter Prof. GRN Tagore und Dr. G. Madhusudhan Reddy am DMRL, Hyderabad. Gegenwärtig arbeitet er als Direktor der Nigama EC, Telangana, Indien.