ddavelarsen
Well-Known Member
First let me apologize for only stepping in here when I need something. It's been a long time since I posted here, mostly because I haven't been making lately. But that recently changed! Finally got some steel and ground out a couple of knives yesterday. Getting ready to HT and I have a concern.
I heat in an electric oven and quench in Houghton Quench G. The last couple of knives I've quenched came away warped, and this is really bothering me. I have a couple of questions about that.
First, should I be normalizing before quench? I'm a stock removal maker and haven't normalized since I've been using the oven. Maybe I should be. What's your opinion on that?
Second, at what point in the HT cycle should I try to correct a warped blade? Right after quench while the blade is still hot? Before tempering when the blade has cooled down some? After temper?
The last one I tried to correct broke; I attempted to remove the warp pretty much right after the quench. Wondering whether the steel is just too brittle then? But I don't think I'd have much luck after tempering either, once the blade is pretty much set in its final state.
I'm perplexed, and would really appreciate hearing from people who have successfully straightened a blade.
Thanks! And have a happy Sunday.
I heat in an electric oven and quench in Houghton Quench G. The last couple of knives I've quenched came away warped, and this is really bothering me. I have a couple of questions about that.
First, should I be normalizing before quench? I'm a stock removal maker and haven't normalized since I've been using the oven. Maybe I should be. What's your opinion on that?
Second, at what point in the HT cycle should I try to correct a warped blade? Right after quench while the blade is still hot? Before tempering when the blade has cooled down some? After temper?
The last one I tried to correct broke; I attempted to remove the warp pretty much right after the quench. Wondering whether the steel is just too brittle then? But I don't think I'd have much luck after tempering either, once the blade is pretty much set in its final state.
I'm perplexed, and would really appreciate hearing from people who have successfully straightened a blade.
Thanks! And have a happy Sunday.