Help with broken blade

kmf600 said:
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From the same batch. Not sure why everyone recommends them.
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Sounds like you should definitely reach out to them directly and let them know!
 
DevinT said:
Do you know if these blades were cut in the longitudinal or the transverse direction? (In line with the rolling direction or against?)

Hoss
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It was a 2 by 24 in bar, I cut with the grain. I could see the spot where it got heated up. A 3/8 in round spot. Sure enough, like the other one, I could see the hairline crack while hand sanding. I'm going to email them today. It's a little frustrating
 
Talked to Peter's, said they rarely have problems with breaking, but when they do its almost always AEB-L, They said call Chuck from Alpha. Nice dude, very friendly and helpful, but thought the round spots on the blades after heat treating were from bad steel, not the straightening process.

I'm ok with learning a lesson the hard way, I guess.

Thanks everyone for your help.
 
kmf600 said:
Talked to Peter's, said they rarely have problems with breaking, but when they do its almost always AEB-L, They said call Chuck from Alpha. Nice dude, very friendly and helpful, but thought the round spots on the blades after heat treating were from bad steel, not the straightening process.
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Do you remember the name of the person at Peters that you talked to?

Please call me at 425-868-5880 Ext-1. Please leave a message if I do not answer.

Chuck
 
Alpha Knife Supply said:
Do you remember the name of the person at Peters that you talked to?

Please call me at 425-868-5880 Ext-1. Please leave a message if I do not answer.

Chuck
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Thanks dude. I don't know much about the chemistry involded, but I've sent blades to other places, never had an issue, you're the only place I've bought steel from. My unprofessional opinion is it was the heat treat
 
It is from the torch. You have a soft spot bordered by much harder steel and then it it bent.

The stress in that blade should not be there at all. The stainless blade should be homogeneous throughout not hard and soft spots.

I talked with Jeff Mutz from Trugrit about this before and he has done thousands of AEBL blades and never a one cracking
 
AVigil said:
It is from the torch. You have a soft spot bordered by much harder steel and then it it bent.

The stress in that blade should not be there at all. The stainless blade should be homogeneous throughout not hard and soft spots.

I talked with Jeff Mutz from Trugrit about this before and he has done thousands of AEBL blades and never a one cracking
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I got one from Jeff right now thats cracked, but heck its probably my fault, so I ain't gonna bother him bout it. Anyhoo:

This is today's workbench.

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This is a normal size batch for me, 53 to do. All are AEB-L, all steel is from Chuck and all ht by Peter's. I've never have had one crack like you have. And thats with thousands of knives. Many of my customers are the most user and abusers there are, working cowboys. I've never had an AEB-L blade returned because it broke. Handle repairs now and then (there's two on the left side of the bench in that first pic) but never an AEB-L blade. Again there are thousands out there getting used hard. I'm kinda perplexed on your deal. Well since that pic this morning, I got all the bolster material cut. Gotta go drill some holes and peen some mosaic pins.
 
Horsewright said:
I got one from Jeff right now thats cracked, but heck its probably my fault, so I ain't gonna bother him bout it. Anyhoo:

This is today's workbench.
This is a normal size batch for me, 53 to do. All are AEB-L, all steel is from Chuck and all ht by Peter's. I've never have had one crack like you have. And thats with thousands of knives. Many of my customers are the most user and abusers there are, working cowboys. I've never had an AEB-L blade returned because it broke. Handle repairs now and then (there's two on the left side of the bench in that first pic) but never an AEB-L blade. Again there are thousands out there getting used hard. I'm kinda perplexed on your deal. Well since that pic this morning, I got all the bolster material cut. Gotta go drill some holes and peen some mosaic pins.
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The cracks on his blades are occurring where they hit it with a torch and we know what that does to a stainless blade.

If you have one that is cracked heat treated by Jeff, you can be assured it is not due to him taking a torch to it.
 
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This is the worst one I got back from them. I'm going to grind and hand sand hopefully this weekend, see what it looks like. I'm guessing it will end up like the others and develop a large crack where the two marks are on the spine. The others had smaller discoloration.
 
I use imgur. Open an account, upload pict and then copy the "BBCode" link and past into the forum.

It works everytime
 
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This is about the size of the discoloration of the one that broke today. Not very big, maybe 3/8 of an inch. Can't wait to see the previous picture, that spot is about 2 1/2 inches
 
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