Any interest?

[Josh Rider]

CPM isn’t a single type of steel like AEB-L, it stands for crucible particle metallurgy and are made by Crucible Industries. There are several steels that fall into that and are made by crucible.
I’m just mentioning it because it seems like you’re using the two as if they’re each a specific steel.

I've been looking into doing stainless. Either AEB-L or CPM, or both.

He did say up front that they prefer doing CPM over AEB-L though

 

[OccamsBlade]

CPM isn’t a single type of steel like AEB-L, it stands for crucible particle metallurgy and are made by Crucible Industries. There are several steels that fall into that and are made by crucible.
I’m just mentioning it because it seems like you’re using the two as if they’re each a specific steel.
View attachment 1057860

Yes, I'm aware.

 

[JTknives]

It's called Fireball Heat Treating I think. I talked with the owner for about a half hour. Really nice guy, and sounds like a smallish operation compared to the other places in the area, that didn't even bother to get back to me. Apparently they do a lot of the heat treating for local makers, and when knives come in it's a pretty big deal. Sounds like they really enjoy doing knives. They've even done work in exchange for knives, haha.

He did say up front that they prefer doing CPM over AEB-L though, but that they're setup for any type of heat treating. That's why I want to send mine out, to have it done right and get the most out of my steel.

Ok sounds good I hope thy treat you well. I would call them back and ask how thy handle warping AEBL. I know of a few places which we won’t name that torch warped blades; which is done to get them straight. Not saying it’s right or wrong in the industry I just personally think it’s wrong for knives. Especially on AEBL as it’s quite sensitive to tempature after heat treat. And a warped AEBL blade can be unbelievably stubborn when trying to straighten it.

 

[Randydb]

Hey JT,
So will you be moving forward with the cnc plasma? Any time line for when you might be offering cutting, surface grinding services?

 

[JTknives]

Yes I am moving forward with the plasma, you should see my amazon cart. We decided to build it and not buy it. All the lower budget tables don’t quite fit what I want in a table. This table is designed specifically around what we will be doing.

 

[OccamsBlade]

Ok sounds good I hope thy treat you well. I would call them back and ask how thy handle warping AEBL. I know of a few places which we won’t name that torch warped blades; which is done to get them straight. Not saying it’s right or wrong in the industry I just personally think it’s wrong for knives. Especially on AEBL as it’s quite sensitive to tempature after heat treat. And a warped AEBL blade can be unbelievably stubborn when trying to straighten it.

Good point! Didn't ask him about how they handle warps. I assume most places just do the ht and aren't responsible for warping. He may have mentioned it though. There were at least a couple of terms he used that went over my head during our conversation. But I'll be sure to ask how they deal with AEB-L warps, as it sounds like something I wouldn't want to even attempt.

 

[Horsewright]

Good point! Didn't ask him about how they handle warps. I assume most places just do the ht and aren't responsible for warping. He may have mentioned it though. There were at least a couple of terms he used that went over my head during our conversation. But I'll be sure to ask how they deal with AEB-L warps, as it sounds like something I wouldn't want to even attempt.

One of the great advantages of having your ht sent out is that they should come back arrow straight. If they don't deal with warp I wouldn't use them.

 

[OccamsBlade]

One of the great advantages of having your ht sent out is that they should come back arrow straight. If they don't deal with warp I wouldn't use them.

Do they usually ask that the blade meet certain requirements? For example overall thickness, or that the bevels aren't ground below a certain thickness.

 

[Horsewright]

The two places I've used have not.

 

[JTknives]

I Normaly don’t have requirements but I have advise that I strongly advocate. First, deburr all the knives. I understand people get in a rush but thy need to be deburrd. Problem is with air hardening steel the sharp bytes can cut through the foil or worse mark up my quench plates. Drilled holes are the the most overlooked area. Drilling raises a burr and if not removed and I press between my quench plates it gouges them. So if you don’t remove the burrs don’t wory I will. But if thy are bad there will be a small charge to do it.

Another thing I highly advise is don’t grind any edge bevels on any blade made out of AEBL. AEBL is SUPER picky with heat treating and looks for any excuse to warp and bow. It’s really an easy steel to grind after hardening.

Also when you do grind edge bevels you don’t want to grind them to thin as the edge can bacon.

 

[Randydb]

So? Are you close to getting the cutter up and running? How long til you may have a service going here? I want to be a customer!

 

[BubbaW]

Or any ballpark pricing?