I am working on a customer’s CZ-75 clone that previously had the magazine catch hacked on assumedly to keep the magazine from falling out as it did when I test fired it after adjusting its extractor; Surprise!!. I just got a TIG (actually I’m waiting for it be delivered today) and after some practice I want to add some metal back to build up the shelf on the catch. I plan on using stainless steel as Ken did in the Professional Welding Course when he built up part of a slide release (I think that was the part). My questions are; should I use stainless and should I do selective heat treat on the welding section. If I need to do selective heat treat do I need to get the added material back to cherry red, quench it and then heat it until it gets to a specific hardness. I know the metals become molten when welded, but I am not sure how hard they are afterwards. I watch the video again last night and I didn’t quit understand what Ken was saying (not his teaching, it’s just me). Any help or suggestion would be appreciated.
You can use stainless to weld up the catch. Stainless steel flows well with little to no pitting. Once you have welded on the part polish the metal to bare white metal with no finish on it so you can see it change color. Warm the part up with a propane torch until it turns a pretty nice blue color. The stainless won’t turn blue but the catch itself will…..unless it is hard chromed or stainless steel itself. Ken
