Okay, need some input from the great minds out there! :) My company will be getting back into placing Stellite 6 overlays on varying thicknesses of stainless steels (normally 304L) using the PTAW process. My predessesor's have tried with varying degree's of success using this process but have had cracking problems (discovered by PT). I KNOW this work can be done satisfactorily but have heard conflicting approaches....from cooling the stainless to heating the stainless. My personal experience with Stellite overlays using the PTAW process is very limited so I would like to hear from others who may have had success in this area. Cool the stainless, heat the stainless, heat the powder, etc.....