stock removal

M

Mr.Wrong

Joined
Aug 5, 2004
Messages
197
Is it nessasary to anneal a blade that has been ground to shape? I used the search but could not find what I was looking for.

Thanks,
Pj
 
If you are buying steel from a knife supplier, no it's already in it's softened state. If you are using old files, lawn mower blades or circular saw blades yes, because they have already been hardened.
Scott
 
When you say,"A blade that has been ground to shape",do you mean a pre-made blade,or a blade ground by you? The blades you get from the suppliers are usually hardened already,you just have to smooth them up and fit a handle.A blade you or someone else has ground does not need annealing,assuming it was ground from annealed stock.After grinding a blade it should be normalized before hardening.This is very similar to annealing.
Stacy
 
The blade was ground by me very slowly from 1095 stock. So I need to normalize it. Cool I will study on that tonight. Any tips/tricks???

Thanks,
Pj
 
When you grind a blade you create stress in the metal.The stress may be greater on one side or the other.If you go directly to HT the blade may warp when these stresses release.Normalization is relieving the stress before HT.Bring the blade up to critical temperature,hold for a few minutes and let cool .Now do the HT as usual and you should get the minimum of warpage.
Be sure to post some pictures when you get the blade done.
Stacy
 
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