Quote Originally Posted by old kodger View Post
I'm not a forging guru, but I had the same thing happen to a piece of, what was known then (1961) as S90 hexagonal bar 1" a.f. In the process of drawing it out to make a cold chisel, the end cracked resulting in a much shorter chisel. When I enquired of the heat treating specialist in the factory complex "why?", his comment was that it wasn't hot enough when I was hammering it.
Thanks so much for taking the time.
I don't think it is that. I checked the video and it was hot enough. I think I made a mistake in the annealing process. You might be right, but not on that heat. I might have hammered it too hard on a previous heat that wasn't hot enough and caused the crack later. Very frustrating but I really appreciate your input.