libensvolenspotens
Well-Known Member
I wonder why then that all my full bore moderators are proof marked?
If like mine, the moderator is proof marked and then modified in some manner, would it not require re-proofing?
Welding a moderator
- Thread starter bish789
- Start date
I wonder why then that all my full bore moderators are proof marked?
If like mine, the moderator is proof marked and then modified in some manner, would it not require re-proofing?
A small hole on a seam is more likely a pinhole from interrupted machine welding, (stop start is where most welding defects originate).
Bronze welding on a lap joint will achieve in the region of 70,000 p.s.i. failure strength.
Bronze welding on a lap joint will achieve in the region of 70,000 p.s.i. failure strength.
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You can get em proofed
Friend who manufactures moderators does his because his insurance insists on it
Perthshire High Seat
Well-Known Member
Yes it was welded during manufacture ( in a very controled manner) doing a welded repair can easily pull the internal bore out of allignment and as a welder of lots of years experience I would never think of doing a repair like this, whatever you decide its up to you, good luck and BE SAFE
Ray
Thanks Ray.
It is literally a 1.5 mm by .5mm hole if you can call it that much, and it doesn't seem to have penetrated into the mod, but is a surface hole.
I was under the impression heat dissipation on TIG is much less than MIG and obviously stick, so warping shouldn't really be an issue.
I'll wait and see what ASE say.
It is literally a 1.5 mm by .5mm hole if you can call it that much, and it doesn't seem to have penetrated into the mod, but is a surface hole.
I was under the impression heat dissipation on TIG is much less than MIG and obviously stick, so warping shouldn't really be an issue.
I'll wait and see what ASE say.
Perthshire High Seat
Well-Known Member
You are correct about heat dissipation for tig etc, but even the smallest repair can pull things out of allignment, and you are doing the correct thing taking advise from ASE
good luck
Ray
good luck
Ray
Thought I'd show a pic.
On close inspection looks like its on a seam weld that goes around the circumference of the mod is going.
I scratched the inside of the hole and the metal was good.
Still could be repaired hopefully.
Worked out in my head how it could be possibly done whilst ensuring that it doesn't warp while welding the whole circumference.
On close inspection looks like its on a seam weld that goes around the circumference of the mod is going.
I scratched the inside of the hole and the metal was good.
Still could be repaired hopefully.
Worked out in my head how it could be possibly done whilst ensuring that it doesn't warp while welding the whole circumference.
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I know nothing at all about welding, soldering, brazing or the manufacture/repair of moderators: though I am aware they don't need proofing, as only one of my six mods is proofed.
For what it's worth, my thought is that this moderator is trying to show you in the gentlest way possible that it has had enough of being a moderator. I'd be worried that attempts to stave off the inevitable by welding/brazing could lead to a markedly less-gentle demonstration of its creeping frailty.
Time for a chat with Jackson's, as has been suggested.
For what it's worth, my thought is that this moderator is trying to show you in the gentlest way possible that it has had enough of being a moderator. I'd be worried that attempts to stave off the inevitable by welding/brazing could lead to a markedly less-gentle demonstration of its creeping frailty.
Time for a chat with Jackson's, as has been suggested.
I used to control movement of pipe joints daily, it's all about skill of application, this mod is of heavy enough material & construction to have nil effect in alignment of internals., it's a small fissure.
My thought is put into a lathe (I have access to one) align with the chuck and the headstock so it's central.
Manually prepare 4 areas for about 10mm at 90 degrees to each other and TIG tack.
Do it again in between first tacks, ending up with 8 tacks in total.
Use the lathe to make a shallow (down to solid metal) filleting channel.
Weld whole circumference, machine down flat on lathe, use crack dye to check.
That's the theory anyway.
Manually prepare 4 areas for about 10mm at 90 degrees to each other and TIG tack.
Do it again in between first tacks, ending up with 8 tacks in total.
Use the lathe to make a shallow (down to solid metal) filleting channel.
Weld whole circumference, machine down flat on lathe, use crack dye to check.
That's the theory anyway.
Highlandsjohn
Well-Known Member
Still could be repaired hopefully. nuff said..
The Americans spent a $1000000.00 on a pen to write in space....the Russians used a pencil....
Tim.243
Highlandsjohn
Well-Known Member
enfieldspares
Well-Known Member
The problem with any repair of a firearms in today's litigation "where there's blame there's a claim" society is ultimately if you do a home repair then you are responsible if anyone is injured. Will your insurance cover?
Re-blacking, extending a stock with a pad, or devarnishing and oiling a stock are innocuous enough. Even jewelling a bolt. But would I want to have my home and savings at risk if a home repaired moderator let go and hurts someone?
No, I don't think so, for peace of mind I'd return it to the maker and ask them to sort it or just scrap it and buy one that has a possible better life span. For the injury cost risk if all goes pear shaped it's not worth elsewise.
Re-blacking, extending a stock with a pad, or devarnishing and oiling a stock are innocuous enough. Even jewelling a bolt. But would I want to have my home and savings at risk if a home repaired moderator let go and hurts someone?
No, I don't think so, for peace of mind I'd return it to the maker and ask them to sort it or just scrap it and buy one that has a possible better life span. For the injury cost risk if all goes pear shaped it's not worth elsewise.
I guess there will be no pictures of your work shop and projects you have made....
Typing is easy, stepping up to the plate ( or work shop bench lol ) is the hard bit....
looks like the repair is going ahead despite the wet towel brigade hiding behind their insurance policy...
Tim.243
straightpull6547
Well-Known Member
What pressure is a moderator actually subject to? Its just a tube, larger than the bullet, open to atmosphere..
enfieldspares
Well-Known Member
You really do talk rot don't you.
I was working on firearms, shot guns, rifles, pistols thirty years ago whilst you were still eating the snot out your nose.
Where do you think my forum name comes from?
There's no wet towel involved.
If you do it as an "amateur" without proper insurance and it goes wrong the amateur will find that his home insurance company will walk away.
You do welding, pretty good from what you've posted.
But if an "amateur", a mate, a friend, does a gun repair, it fails, and someone is injured, their domestic insurance won't cover them.
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