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Drilling heat treated 30V stainless
#5982206
10/18/15 03:58 AM
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Joined: Sep 2011
Posts: 266
Mas Cabeza
OP
Bird Dog
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OP
Bird Dog
Joined: Sep 2011
Posts: 266 |
Newbie to knife making, and this steel was recommended to me. Bought it, profile ground, sent to heat treat. Let me remind you all, I have only made 2 knives out of files. I have ground the bevels, and sanded it to desired finish, but now I'm trying to drill holes in the handle for pins. Here's where I have learned my first lesson. I didn't drill them pre heat treat. So, after bearing down on the drill press wit ZERO success, can I use my torch to heat the areas and soften the steel? Also how do I do this and not mess up the heat treat on the blade. Thanks guys
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5982221
10/18/15 04:14 AM
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Joined: May 2011
Posts: 522
D.Crawford
Tracker
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Tracker
Joined: May 2011
Posts: 522 |
Carbide drill bit.
Not sure who recommended that steel but it's the deep end of the pool for a new maker. You'll do better to start with 5160 or 1084 carbon steel. They're relatively easy to HT at home with minimal equipment and they make a fine blade.
Last edited by D.Crawford; 10/18/15 04:24 AM.
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5982299
10/18/15 10:58 AM
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Joined: Jan 2009
Posts: 6,044
Kev®
THF Trophy Hunter
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THF Trophy Hunter
Joined: Jan 2009
Posts: 6,044 |
Clamp the blade between a couple 1/2" plates of aluminum and use a torch on the spots you want your pins, bring the pin areas to red hot and let it cool then drill.
Basically you are annealing the spots for the pins.
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Re: Drilling heat treated 30V stainless
[Re: Kev®]
#5982964
10/18/15 10:59 PM
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Joined: Aug 2005
Posts: 17,117
MikeC
THF Celebrity
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THF Celebrity
Joined: Aug 2005
Posts: 17,117 |
Clamp the blade between a couple 1/2" plates of aluminum and use a torch on the spots you want your pins, bring the pin areas to red hot and let it cool then drill.
Basically you are annealing the spots for the pins. Won't work on the 30V . From Crucible's data sheet. Heat to 1650F, hold for 2 hours, slow cool no faster then 25F per hour to 1100F. Furnace cool or let cool in still air to room temperature. If you don't have the proper equipment to do this right, you stand the risk of making it harder.
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Re: Drilling heat treated 30V stainless
[Re: MikeC]
#5982979
10/18/15 11:11 PM
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Joined: Jan 2009
Posts: 6,044
Kev®
THF Trophy Hunter
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THF Trophy Hunter
Joined: Jan 2009
Posts: 6,044 |
Clamp the blade between a couple 1/2" plates of aluminum and use a torch on the spots you want your pins, bring the pin areas to red hot and let it cool then drill.
Basically you are annealing the spots for the pins. Won't work on the 30V . From Crucible's data sheet. Heat to 1650F, hold for 2 hours, slow cool no faster then 25F per hour to 1100F. Furnace cool or let cool in still air to room temperature. If you don't have the proper equipment to do this right, you stand the risk of making it harder. well there you have it, I was just guessing I guess since I've never used it. I have bought damascus and had to heat the tang in order to drill pin holes.
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5985181
10/20/15 11:44 AM
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Joined: Feb 2012
Posts: 1,177
randallss7
Pro Tracker
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Pro Tracker
Joined: Feb 2012
Posts: 1,177 |
Here is what I would do, for what its worth, wrap that one in para-cord or something and just start over with a new one. This time lay out the handle and drill any holes before you send it out for heat treatment...lol.
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5985497
10/20/15 03:03 PM
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Joined: May 2012
Posts: 8,383
nsmike
THF Trophy Hunter
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THF Trophy Hunter
Joined: May 2012
Posts: 8,383 |
for every stereotype there's a prototype don't be the prototype
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5986748
10/21/15 03:52 AM
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Joined: Feb 2015
Posts: 193
Andrew Griggs
Woodsman
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Woodsman
Joined: Feb 2015
Posts: 193 |
You can get a carbide bit in the desired size from Jantz Supply. Should go through it without any issues but be carefull not to tweek it or you could snap your bit.
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Re: Drilling heat treated 30V stainless
[Re: Mas Cabeza]
#5986818
10/21/15 05:53 AM
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Joined: Feb 2009
Posts: 3,705
toolman
Extreme Tracker
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Extreme Tracker
Joined: Feb 2009
Posts: 3,705 |
Believe it or not, but you can get cheap masonry bits from your local hardware store, use lots of pressure, cutting oil, and the lowest speed you can turn it, and you will punch a hole wherever you want it. I have had a couplke of times that the brand-new bit needed to be sharpened a bit, but my local machine shop did it for free.
Old age ain't for sissies!
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