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Forums10
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Most Online1,344 Apr 29th, 2024
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Joined: Oct 2003
Posts: 80
Junior Member
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OP
Junior Member
Joined: Oct 2003
Posts: 80 |
Anyone know a great tig welder in the SE. PA. NJ. or Delaware region. One who can weld a new tip on a firing pin or similar small work. Thanks. npm
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Joined: May 2007
Posts: 66
Sidelock
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Sidelock
Joined: May 2007
Posts: 66 |
Why not just have a new pin made?
Last edited by Jim Kobe; 10/10/07 12:08 PM.
Member American Custom Gunmakers Guild
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Joined: Aug 2005
Posts: 377
Member
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Member
Joined: Aug 2005
Posts: 377 |
As one who does TIG weld, Jim's suggestion is far and away the best. The weld would be fine, the integrity of the firing pin aft of the weld????? Best, Dr. BILL
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Joined: Feb 2004
Posts: 13,879 Likes: 15
Sidelock
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Sidelock
Joined: Feb 2004
Posts: 13,879 Likes: 15 |
Being primarily a machinist rather than a welder, I would make a new pin from scratch. While you may succeed in a welded pin working, the new pin will have better mechanical properties that make is less likely to fail again. Keep in mind that a weld is essentially a casting. Castings have grain size and alignment that is not ideal for strength or toughness. On a firing pin, there is no option to make it thicker in crossection for added strength to compensate. Typically, firing pins are made from bar stock. Bar stock has mechanical properties similar to a forging where the grain size and alignment is more idealized.
Another option that I've seen on this board is the drilling out of the tip and pressing in of a new tip. No matter if you weld it, drill and replace the tip or make a new complete pin, it needs to be of the correct hardness, which often means heat treating.
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Joined: Jan 2002
Posts: 1,156
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 1,156 |
I'm thinking the firing pin example was just an example. Maybe the fellow needs another sear nose or something.
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Joined: Oct 2003
Posts: 80
Junior Member
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OP
Junior Member
Joined: Oct 2003
Posts: 80 |
Montana, exactly. It's the end of a revolver pawl and a complicated little devil. I'll make a new one from O1 steel if I have to but that means a whole lot of filing. npm
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Joined: Apr 2002
Posts: 692
Sidelock
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Sidelock
Joined: Apr 2002
Posts: 692 |
npm
Send me and e-mail and I will be glad to help you out with the welding. If it is weldable I can do it. bill@aeweld.com
Bill G.
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Joined: Oct 2003
Posts: 80
Junior Member
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OP
Junior Member
Joined: Oct 2003
Posts: 80 |
Thanks Bill. I'll do that. npm
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Joined: Dec 2001
Posts: 1,418 Likes: 2
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 1,418 Likes: 2 |
Even on a hinged shotgun its not always the pin/hook that needs the weld....After the season I have a double that will need a tig weld but its the lock mechanism that is worn not the hinge.......
gunut
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Joined: Feb 2004
Posts: 13,879 Likes: 15
Sidelock
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Sidelock
Joined: Feb 2004
Posts: 13,879 Likes: 15 |
GN, Oscar mentioned he believed that a certain prominent English gentleman gunsmith in TX used a spray metal process for the hooks. This apparently applies metal fairly evenly and thinly. Might be worth studying for the bolting mech.
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