- Joined
- Oct 17, 1999
- Messages
- 122
How thin can I grind O-1 before I send it out for heat treatment? Does a chisel, flat or hollow grind make a difference? I have 1/8" stock.
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O-1 thickness before heat treat?
- Thread starter UPSTARTCROWE
- Start date
- Joined
- Jan 28, 1999
- Messages
- 65
Hello Upstartcrowe,
I assume you're talking about the primary edge bevel thickness (or more accurately the blade thickness just prior to grinding the edge bevel). I usually take it down to about .020" to .030" before heat-treating. I do my own heat treat for O1 and I know about how thin I can get away with before it warps or cracks but I would think most any heat treater would use the standard cycle.
As for grind types...about 70% of my work is flat ground. I can't really tell much different between hollow and flat as far as heat-treating goes. I do seem to loose more chisel ground knives due to warping. In theory, the asymmetric blade profile on a chisel ground knife can cause one side of the blade to quench at a faster rate than the other especially if it's not quenched perfectly vertical in the tank.
Hope it helps,
------------------
Cecil Self
SELF Knives
Arrow-Dynamics Cutting Tools
www.arrow-dynamics.com
I assume you're talking about the primary edge bevel thickness (or more accurately the blade thickness just prior to grinding the edge bevel). I usually take it down to about .020" to .030" before heat-treating. I do my own heat treat for O1 and I know about how thin I can get away with before it warps or cracks but I would think most any heat treater would use the standard cycle.
As for grind types...about 70% of my work is flat ground. I can't really tell much different between hollow and flat as far as heat-treating goes. I do seem to loose more chisel ground knives due to warping. In theory, the asymmetric blade profile on a chisel ground knife can cause one side of the blade to quench at a faster rate than the other especially if it's not quenched perfectly vertical in the tank.
Hope it helps,
------------------
Cecil Self
SELF Knives
Arrow-Dynamics Cutting Tools
www.arrow-dynamics.com
- Joined
- Dec 14, 1998
- Messages
- 4,870
It depends on the type of heat treat. Salt bath you can take them to size..
Other methods.. you may want to concider a thicker edge as stated above.
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Web Site At www.infinet.com/~browzer/bldesmth.html
New Web at www.darrelralph.com
Other methods.. you may want to concider a thicker edge as stated above.
------------------
Web Site At www.infinet.com/~browzer/bldesmth.html
New Web at www.darrelralph.com