MEMBER ITEMS FOR SALE
Custom Knives | Other Knives | General Items
-------------------------------------------
New Posts | New PhotosAll Photos



Go Back   The Knife Network Forums : Knife Making Discussions > Custom Knife Discussion Boards > Knife Making Discussions > High-Performance Blades

High-Performance Blades Sharing ideas for getting the most out of our steel.

Reply
 
Thread Tools Display Modes
  #1  
Old 12-21-2002, 12:58 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Cryo available

Cryo offered
Angel Sword Forge has opened its cryogenics treatment facilities commercially. We can handle lengths up to 48 inches.

Daniel Watson
Reply With Quote
  #2  
Old 12-22-2002, 11:41 AM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
Do you do post cryo tempering also? Crucible Steel recommends at least one tempering after cryo.


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #3  
Old 12-22-2002, 12:09 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
We typically do a computer controlled descent to -300F, no thermal shock, then a controlled re-ascent and temper to +300F. We like to do a second temper as well.

Daniel
Reply With Quote
  #4  
Old 12-22-2002, 12:18 PM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
How about high alloy steels that might temper as high as 950F?

This might be a great resource for those lacking cryo facilities. They can do a single temper right after hardening, then send it off to you for cryo and final temper(s). They have to do at least one temper after hardening of course, at least with high alloy steels anyway.


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #5  
Old 12-22-2002, 07:48 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Most of the info I have read suggests cryo between hardening and tempering for maximum benefit.

Our cryo unit itself does the temper to +300F. We have a separate unit for higher temperatures.

Daniel
Reply With Quote
  #6  
Old 12-22-2002, 08:05 PM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
I agree about the cryo then tempering, IF it is done immediately out of the hardening oven. The important thing is to always temper after cryo, regardless. Paul Bos frequently does what he calls a snap tempering anyway, just a short cycle to begin drawing the steel, allowing more time for the cryo to begin. It's not usually done in different cities though...


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #7  
Old 12-22-2002, 08:06 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Freebie

Oops! I forgot to mention that from now until the end of March, the first piece any knifemaker sends me for cyro will be free (except shipping).

Daniel

http://www.angelsword.com/
Reply With Quote
  #8  
Old 12-22-2002, 08:38 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
A snap temper certainly would relieve some of the stress, but is likely to also convert some of the residual austentite to bainite and so gain less martensite in the cryo. It might be a trade off.

What kind of temp and hold on the snap?

Daniel
Reply With Quote
  #9  
Old 12-22-2002, 08:38 PM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
BTW, you make beautiful swords. Nice website.


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #10  
Old 12-22-2002, 08:49 PM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
I don't really know the cycles Paul uses. I send him my iron, he sends back steel. It works. I've had one of my Rc61 CPM-3V blades bent 90 degrees, back and forth four times before it broke, and that was with a BIG man leaning all his weight on it to get it to bend that far.


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #11  
Old 12-22-2002, 09:07 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Thanks for the comment on the website. The Avatar TechnoWootz has been extremely popular. I hope to be able to offer it as bar stock soon.

Daniel
Reply With Quote
  #12  
Old 12-22-2002, 09:13 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Impressive. Any idea of about how much bend and return to true you're getting with that?

Daniel
Reply With Quote
  #13  
Old 12-22-2002, 09:18 PM
Jerry Hossom Jerry Hossom is offline
Founding Member / Moderator
 
Join Date: Jun 2002
Location: Atlanta, GA
Posts: 411
The first bend left about a 15-20 degree set.

I'd be interested in your wootz when you have it ready.


__________________
Jerry Hossom
http://www.hossom.com

New Email Address: jerry@hossom.com
Reply With Quote
  #14  
Old 12-22-2002, 09:20 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Length and thickness of blade?
Reply With Quote
  #15  
Old 12-22-2002, 09:22 PM
knightsteel knightsteel is offline
Enthusiast
 
Join Date: Jun 2002
Location: Driftwood, Texas
Posts: 50
Oops I had better clarify that I was asking about your bend test.

Daniel
Reply With Quote
Reply

Tags
blade, forge, knife


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -5. The time now is 04:15 PM.




KNIFENETWORK.COM
Copyright © 2000
? CKK Industries, Inc. ? All Rights Reserved
Powered by ...

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
The Knife Network : All Rights Reserved