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 > Heat Treating and Metallurgy

Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making.

Reply
 
Thread Tools Display Modes
  #1  
Old 11-18-2013, 02:23 PM
Radar Radar is offline
Enthusiast
 
Join Date: Mar 2013
Posts: 51
aluminum shot instead of quench plates?

Did a search and came up empty, with some of the discussions regarding quench plates and their inability to contour to a blade that's ground pre-HT, has anyone thought of or tried using a pan full of aluminum shot (available from metal finishing suppliers, particulate sizes as small as .015", about like table salt) to quench blades? In theory, the tiny beads would make very uniform contact with all surfaces of the blade, thus eliminating the differential cooling rates associated with plate quenching comparable blades.

My thoughts on process would be to have a pan half full of the shot, drop the foil pouch in the pan and then cover it up with more shot.

The thing it doesn't necessarily address is warp, but with enough weight on it, the stuff is generally incompressible and may be useful in that respect as well.

Thanks, I'm interested in your thoughts.

-Radar
Reply With Quote
  #2  
Old 11-19-2013, 08:57 AM
argel55 argel55 is offline
Steel Addict
 
Join Date: Apr 2009
Location: Chandler, Oklahoma
Posts: 238
Not enough surface contact. You disperse the heat by drawing it into the aluminum.
Reply With Quote
  #3  
Old 11-19-2013, 10:20 AM
Gary Mulkey's Avatar
Gary Mulkey Gary Mulkey is offline
Guru
 
Join Date: Jun 2002
Location: Branson, Mo
Posts: 1,129
I would agree with Mike. Quench plates remove the heat through conduction rather than convection and you want maximum contact. I know many have used either aluminum or copper which are best but if you don't have access to them, I have found that for most steels that steel plates 2-3" thick work quite well and are easily obtained.

Gary


__________________
Gary
ABS,CKCA, ABKA,KGA
Reply With Quote
  #4  
Old 11-29-2013, 11:49 PM
Bob Hatfield Bob Hatfield is offline
Steel Addict
 
Join Date: Apr 2004
Location: Northern CA.
Posts: 114
I use 1 inch thick alum. plates 6x12 inches for my hunting knives of S30V. I even keep the plates in my shop freezer part of the fridge. Does a very fast job of cooling down the blade and I have never had a blade warp on me using this procedure.


__________________
RELH
Reply With Quote
Reply

Tags
blade, blades, heat, hunting, knife, knives, make, metal, surface, tiny


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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
quench plates mknife Heat Treating and Metallurgy 3 12-19-2006 01:38 AM
Aluminum Plates/HT esa Heat Treating and Metallurgy 2 06-25-2006 02:12 PM
Quench plates ? SVanderkolff Knife Making Discussions 6 02-10-2006 12:08 PM
Use of aluminum plates with stainless quench David Johansen The Newbies Arena 6 05-13-2004 10:46 AM
Quench Plates? canyonman High-Performance Blades 4 06-08-2003 07:55 AM


All times are GMT -5. The time now is 08:04 AM.




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

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
The Knife Network : All Rights Reserved