Bowed cpm154

[panch0]

Hello all, I have a question on cpm154. I ordered a piece from a vendor whos name I will not give. I sent an email to the company a few minutes ago and need to give them time to respond.

On to my question. I am thinking I may be able to try and straigten it my self and since it will be plate quenched it may not warp on me. Am I correct in my thinking? If this is the case I would just drop it. I ordered some 1084 from another vendor and did this but it warped on me. It was quenched in oil so it is not the same scenario. What do yall think?

 

[SBuzek]

Frank
I use alot of cpm154 and there are times I have to straighten it,I use the three pin system.Then grind and plate quench and don't have any warping problems,when one does warp I can usually trace it back to uneven grind lines.
On carbon steel if you straighen then normalize 3 times, will solve alot of warping problems.
Stan

 

[KnifeMaker.ca]

Annealed steel is soft and pliable. You will never receive it *perfectly* straight and some degree of straightening should be expected. It may be a few thou - or it may be more. If it's really out, it may have been damaged in shipment - but a slight bow would be normal. Even precision ground stock, while parallel, could well be bowed

Rob!

 

[panch0]

Here is a pic.

 

[jonnymac44]

Here is a pic. Now that I think about it, it doesn't look that bad.

I got some D2 that was slightly bowed a couple weeks ago, the piece that was bowed was about 1.5 feet long. It wasn't too bad, but there was about 3/16" or a touch more of gap in the center when I laid it on the workbench. I turned it over, put it on my knee and pushed down on the outside ends very slowly and steadily. Got it damn near perfect, then surface ground it nice and flat. The blades I'm making out of are between 5.5" and 6.0" long, so once I cut it up all seemed just fine. These ones aren't forged, so the situation is different, but the one I ground out so far turned out good and true.