tig welding holes

Most welding shops don't have a firearms business license that is required to work on a firearm.

I plugged holes with TIG and MIG and by drill out and drive in a plug and polished and hot blued them. With the TIG I used the same Brownell's rod with a little nickel in it that I welded bolt handles with. All blued pretty good but with welding you always may have a blemish. I t's a bit more work but the drive in plug was best...
 
guntech said:
I have plugged holes by drilling out and driving a tight steel plug in and dressing it down and polishing. Extremely hard to see before and after bluing. I used blank screw stock from Brownell's and it blues nicely.
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I've used this method after first seeing it suggested by guntech - you could not detect the holes even when I knew exactly where to look.
 
i think guntech has convinced me to drive in a plug . i can turn a tapered plug...the gun is more brown then blue. so i am going to try mixing some mark lee blueing and browning together...with a bit of experimenting first .
 
Goodluck! if you end up getting it Tig welded i would cut some screws short for plugs and make sure they dont have a zinc coating otherwise the welder will get porosity.
 
45ACPKING said:
most good welding shops don't have an expert tig welder..... at least not here in BC. Fine detail Tig "artists" are hard to come by and the ones that have done it for 30 years usually can't see good enough anymore for the really fine work LOL
The two tig welders I know are so busy all over the lowermainland doing sanitary and process piping and other stainless work, I don't even ask them to do small jobs for me anymore.
From working as a fabricator/fitter side by side on custom projects with these guys....match the plug and rod to the receiver metal, get the heat setting right , get it pristinely clean and it should work out well. If the metals aren't matched you will get blotchy results with rebluing or discolorations.
Might not even need a filler rod if the plug is left a tiny bit proud and the tig welder just forms it into a puddle and gets it to flow out to cap the plug to the receiver metal...... might actually be the best way to go about it.
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Really fine work is welding edges back on to die casting dies and injection molds, on the order of say, a 5 thou diameter puddle.

Something this size is pretty much just a bead around in a circle, maybe a touch of filler, depending on whether there is a plug or not.

The damn near blind should be able to do it. I know I have witnessed dudes that were considered pretty much incompetent, pull it off.

Someone with competence AND experience should be pretty much able to do it in their sleep.
 
Lots of things come into play done with tig ".040" tungsten" "pulse" a good "inverter machine" really helps ".035" filler rod" or less. "ER70S2" rod will fit the bill.A machine that starts at 1 amp is a blessing.
All of this comes into play as well as preparation. I used aircraft shop as an example and read amusing responses.

R
 
ronnie01 said:
Lots of things come into play done with tig ".040" tungsten" "pulse" a good "inverter machine" really helps ".035" filler rod" or less. "ER70S2" rod will fit the bill.A machine that starts at 1 amp is a blessing.
All of this comes into play as well as preparation. I used aircraft shop as an example and read amusing responses.

R
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It's likely not that bad an example, really, though I would likely try to touch base with any local home builders, as they, as a group, tend towards being fairly proficient problem solvers, and fairly willing in general, to help a fellow hobbyist out.
If they don't weld themselves, like as not, they know someone they can call in upon with parts in hand, without having to worry much about paying Union scale. Whether that welding is gas or TIG, would be anyone's guess.
 
trevj said:
Really fine work is welding edges back on to die casting dies and injection molds, on the order of say, a 5 thou diameter puddle.

Something this size is pretty much just a bead around in a circle, maybe a touch of filler, depending on whether there is a plug or not.

The damn near blind should be able to do it. I know I have witnessed dudes that were considered pretty much incompetent, pull it off.

Someone with competence AND experience should be pretty much able to do it in their sleep.
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I have done this, I am a good Tig welder, and it is not as easy as you let on. Sure, if you are doing parts that never get seen; but it's a different story if you are doing parts that are visible to the customer.

That stuff i now send out to a die shop, as they have the equipment to do micro-laser welding. I would go with the plug.
 
Just a thought....
You could always fill the holes with black rtv.
You will probably be the only one that sees it and you still have the threads in place if you ever want to mount optics in the future.
 
sealevel said:
i just got a marlin 27 in 32-20 its a beauty . except for the holes drilled in the receiver to mount a scope . not little holes big 10-32 ....anyone ever try to have the tig welded ??? .
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https://www.youtube.com/watch?v=9kM2t7V_WUI

Here is something to watch with the magic of production videos by Midway.

The guy walks through the steps with some good camera work from beginning to end with a few added upgrades.

Do you have something of value that bubba tinkered on or are you just annoyed with the current cosmetics?

Post a picture for a real honest opinions and solutions.

Again, the FYI u toob link is to offer one possible solution to your quest.
Rob
 
FLHTCUI said:
https://www.youtube.com/watch?v=9kM2t7V_WUI

Here is something to watch with the magic of production videos by Midway.

The guy walks through the steps with some good camera work from beginning to end with a few added upgrades.

Do you have something of value that bubba tinkered on or are you just annoyed with the current cosmetics?

Post a picture for a real honest opinions and solutions.

Again, the FYI u toob link is to offer one possible solution to your quest.
Rob
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well i geuss most will not see value in a marlin 27s ...but i do not see a lot of marlin pumps around . i have a real soft spot for old early 1900 pumps
 
sealevel said:
well i geuss most will not see value in a marlin 27s ...but i do not see a lot of marlin pumps around . i have a real soft spot for old early 1900 pumps
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I didnt say there was no value in the marlin pump and apologize if it appeared that way.
But, the link will show some steps to consider before spending even more money on the gun in question.
Again, I am not devaluing your gun or your reasons for filling the holes.
I'll sentiment tiriaq's request too please.
Rob
 
Interesting as I have a similar situation on my Carabine FN Browning 1900. I have decided to use the plug and tap option. Here is a trial run on a water pipe before moving to the receiver.
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MBiz said:
Interesting as I have a similar situation on my Carabine FN Browning 1900. I have decided to use the plug and tap option. Here is a trial run on a water pipe before moving to the receiver.
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A tapped hole with a screw in it and peened over, will always have a little crescent mark when dressed down and polished and finished. A bit of the thread never fills completely. To be perfect it requires a drilled hole (no threads) and a driven in plug...
 
guntech said:
A tapped hole with a screw in it and peened over, will always have a little crescent mark when dressed down and polished and finished. A bit of the thread never fills completely. To be perfect it requires a drilled hole (no threads) and a driven in plug...
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Does the plug need to be cone-shaped?
 
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