I got a question about forging pattern welded steel. I've noticed that after doing the initial weld and draw at some point during the squaring up of the material I'll hit the layer edge just right and the layers will split open. Last time I was working a blade of layered steel I was able to hammer it back together and seemed to weld up just fine (not counting the one really bad weld that killed the blade). I'm working another billet and the same thing happened. I was hammering the edge and everything was fine and then all the sudden it mushes open. Not deeply but just along the edge of the billet. Now Jim Hrisoulas in his book mentions proper forging tempertures for pattern welded steel and I'm thinking that what I'm doing is getting it too hot to work? I took a K type thermocouple to to forge this last time to check tempertures after I was done forging and discovered that my forging temperture was at well over 2000F (which is where My reader quits reading....) I didn't realize I'd been working that hot. Will working at lower tempertures stop the delamination? Just to be clear I'm talking high carbon materials, not low.
GA