welding m14 bolt lugs
- Thread starter grizzly416
- Start date
--7018 or 6011 would be nowhere near the hardness of a true hardfacing rod.
--Welding of any sort is bound to cause other problems, dont do it. If you are anywher close to 45ACPking in Langley, come to one of his Clinincs and he will measure your headspace.
--Welding of any sort is bound to cause other problems, dont do it. If you are anywher close to 45ACPking in Langley, come to one of his Clinincs and he will measure your headspace.
NO! you change the temper of the bolt and that is DANGEROUS. You can silver soder a cup in like the bolt guys do, but that is serious stuff and you don't want to screw that up. Send your gun to Dlask and they'll fix it up or another GOOD gunsmith, ask around.
You might want to look at electroless nickle plating ... usually all you need is about .010" to bring the Norcs down to 7.62 NATO GO.
.010" is thick for nickle plating, and plating may change some critical dimensions in other places, but I would look into plating before welding [ and REHEAT TREATING ] a bolt.
PS: Electroless nickle may be SELECTIVELY applied by masking off the areas you don't want plated, and unlike Hard Chrome plating, electroless nickle does not cause embrittlement.
.010" is thick for nickle plating, and plating may change some critical dimensions in other places, but I would look into plating before welding [ and REHEAT TREATING ] a bolt.
PS: Electroless nickle may be SELECTIVELY applied by masking off the areas you don't want plated, and unlike Hard Chrome plating, electroless nickle does not cause embrittlement.
Starscream
CGN frequent flyer
- Location
- Southern Alberta
I'd imagine it's doable but the amount of work required would probably put it in the not worth the effort zone.
1) The welding itself might change the dimensions of the lugs in places you don't want to change, might just melt the lug right off... Might be doable with a TIG welder but you'd have to be really careful about porosity, any imperfections can lead to lug failure during firing.
2) The heat affected zone might not penetrate the entire lug or it might weaken it. You could probably heat treat the entire bolt to get the hardness uniform again.
3) Grinding it back down is really time consuming unless you've got the proper equipment (a CNC mill would be ideal) and might waste your time if you overshoot the grinding... not something to do by hand.
1) The welding itself might change the dimensions of the lugs in places you don't want to change, might just melt the lug right off... Might be doable with a TIG welder but you'd have to be really careful about porosity, any imperfections can lead to lug failure during firing.
2) The heat affected zone might not penetrate the entire lug or it might weaken it. You could probably heat treat the entire bolt to get the hardness uniform again.
3) Grinding it back down is really time consuming unless you've got the proper equipment (a CNC mill would be ideal) and might waste your time if you overshoot the grinding... not something to do by hand.
We are on shaky ground with such a proposition. Yes, a military 7.62mm chamber is fine up to the 25 thou NO-GO gauge!
Hold off on welding up those undersize Norc bolts.
Brand new Aftermarket M14 bolts are coming to Canada .... someday!!
I have a brand new aftermarket "USGI Eqivalent" op rod, obtained from a Canadian vendor, who is also looking at bringing in after market M14 bolts.
The Op rod is about as good as it gets ... way better than the reweld /restraightened worn out genuine US GI op rods that you see at gun shows South of the border.
If the bolts are equivalent quality, then we Canucks will have a massive market for them ... maybe bigger than the US market.
[;{)
LAZ
Brand new Aftermarket M14 bolts are coming to Canada .... someday!!
I have a brand new aftermarket "USGI Eqivalent" op rod, obtained from a Canadian vendor, who is also looking at bringing in after market M14 bolts.
The Op rod is about as good as it gets ... way better than the reweld /restraightened worn out genuine US GI op rods that you see at gun shows South of the border.
If the bolts are equivalent quality, then we Canucks will have a massive market for them ... maybe bigger than the US market.
[;{)
LAZ
My bolt is way out too. (edit err...) 0.016" (I hate standard. Metric FTW) or something... The amount of time you'd spend trying to find another solution to a ~$300 problem, just doesn't seem justified in this case.
- Location
- Georgetown Ontario
What Vendor? We who still need bolts may be able to give him a idea of how many he might be able to sell. They would have to be USGI quality bolts though.
Not Just Aircraft, we use it on rail cars as well, I a machinist i at the bombardier plant in thunderbay, use it on the boogies for the cars , some to the bearing tolerances as 3 tenths, thats -.0003/+0.000 to drawing, have use it to to build up a lung on a 305 thats wasnt mated properly for my brother, 200 plus rounds and its looks ok with no signs on excessive wear
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