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Author Topic: Tig Weld Rem.700 Bolt Face  (Read 2513 times)

Offline jaclthr

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Tig Weld Rem.700 Bolt Face
« on: 03:07 PM, 12/27/11 »
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  •           Is the bolt face of a Remington 700 tempered, can you tig weld the bolt face without making it brittle or in any other way make it unsafe ?

    Thanks For Your Input

            jaclthr


    Offline p17enfeild

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    Tig Weld Rem.700 Bolt Face
    « Reply #1 on: 03:23 PM, 12/27/11 »
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  • why are you wanting to weld it?

    Offline jaclthr

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    Tig Weld Rem.700 Bolt Face
    « Reply #2 on: 04:27 PM, 12/27/11 »
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  •          A customer stuck a case do to pressure and tried to drill it out, it left dimples in the bolt from the drill and he wanted to know if it could be welded and refaced.

           jaclthr


    Offline Minesweeper3433

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    Tig Weld Rem.700 Bolt Face
    « Reply #3 on: 04:57 PM, 12/27/11 »
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  • How did he drill it out that he damaged the bolt face? Just curios and want to make sure I don't do something like that.
    Old guns like old friendships are long retained and must be constantly renewed.  James V. Howe The modern gunsmith Pub. 1934\

    Offline p17enfeild

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    Tig Weld Rem.700 Bolt Face
    « Reply #4 on: 05:05 PM, 12/27/11 »
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  • oh i see
    i think i would be inclined the bore the face out a may be .025'' and solder in a bush, a photo of the damage may be of help
    i my self would not tig ,mig or use brazing at that end of the bolt
    hope this help

    Offline lelongcarabine

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    Tig Weld Rem.700 Bolt Face
    « Reply #5 on: 06:23 PM, 12/27/11 »
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  • I am a retired welder with many moons of certified TIG experience.
    IMHO! For a customers rifle? There are things you can weld and things you shouldn't.  This situation demands a completely new bolt! Your liability is on the line! Warpage and distortion, improper heat treating , among other issues can create a very expensive "simple repair"
    However, Lets look at the minimum of what you would need to reweld that damage. #1. Access to a heat treating furnace. #2. Filler rod with Matching metallurgy. #3. Heat stop. #4 Bolt plug and purge tubing for internal purge of bolt.
    You will need to make a full penetration weld. No lack of fusion at the bottom corners of the drill holes.
    To much penetration and you will have a distorted firing pin hole or bolt head.
    Rockmount/Nassau Alloys has some outstanding chromemoly TIG filler rod that does not spit and sputter. It runs smooth. I do not know if the tensile strength is adequate for this application. I does work well on chrome moly receivers; pre-heat treated, investment casting repair.  I do not sell or receive a commission if you decide to use this product. Heres the link; (look alloy steels on the left, click on Tartan and Tartan B(high strength)) Hope this helps? Greg
    http://www.weldit.com/product1.html
    « Last Edit: 06:26 PM, 12/27/11 by lelongcarabine »


    Offline Dans40X

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    Tig Weld Rem.700 Bolt Face
    « Reply #6 on: 06:55 PM, 12/27/11 »
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  • IF,
    the rifle is un-molested-
    Pull the bolt out of the rifle & send it to Rem for a $175.00 replacement bolt assy.
    OR
    Purchase an OEM Rem bolt assy on line-
    Compare bolts critical dimensions,drop into action,confirm headspace & hand the rifle back to your customer.

    Practice on your customers old/your new bolt!!!!!!!!

    I wouldn't TIG weld on my personal bolt nose's.
    That nose is silvered brazed & pinned in place.
    Practice makes Perfect!!!
    Good Luck!!!!
    Keep'em in the X ring...
    DAN
    www.ACCU-TIG.com

    Offline lelongcarabine

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    Tig Weld Rem.700 Bolt Face
    « Reply #7 on: 08:40 PM, 12/27/11 »
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  • Dans40X brought up a VERY IMPORTANT POINT! Factory Remington bolts are made in 3 pieces. Handle, body and head. If you heat the bolt body/head braze joint beyond the brazing alloy melting point. You will have destroyed the process integrity of that joining technique. A replacement Remington or a PT&G Bolt would be a far better way to deal with the issue!
    The advise given to practice on your own bolt, is Wisdom at its finest! Greg

    Offline jaclthr

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    Tig Weld Rem.700 Bolt Face
    « Reply #8 on: 08:54 PM, 12/27/11 »
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  •        I appreciate all the input and right now it is a practice piece, just wandering about the heat treatment, Great points Thanks Again.

                 jaclthr

    Offline Robert

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    Tig Weld Rem.700 Bolt Face
    « Reply #9 on: 12:11 AM, 12/28/11 »
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  •        I appreciate all the input and right now it is a practice piece, just wandering about the heat treatment, Great points Thanks Again.

                 jaclthr

    jadthr,
    All sound advices passed above.
    Personally, I would also inspect very cautiously the other action parts having been submitted to such an overpressure as well...
    -Is the chamber not ovalised?
    -The receiver reinforce slightly bulged?
    -The receiver lugs set back?
    -Blowback signs in the firing mechanism?........
    R.G.C

    Offline Gundoktr

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    Tig Weld Rem.700 Bolt Face
    « Reply #10 on: 08:16 AM, 12/28/11 »
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  •        I appreciate all the input and right now it is a practice piece, just wandering about the heat treatment, Great points Thanks Again.

                 jaclthr

    I have extra rem 700 short action bolt bodies available, what are your needs?

    Emails please:  Jkob60@msn.com


     

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