mrikirkby Posted April 4, 2011 Report Share Posted April 4, 2011 I have a 12g O/U which has the hook/lug broken under the barrels that holds the fore end on, Can i build the metal back up with a mig welder or will it have to be brazed or some other way. Blueing is not particualy good so not worried about that but unsure of heat build up with mig ? Once built back up I am going to reshape back to a hook hopefully ! Ps i dont have the lug part that broke off although the rest of it is still on the barrel if that makes sense ? Quote Link to comment Share on other sites More sharing options...
stokie Posted April 5, 2011 Report Share Posted April 5, 2011 Barrels are normally soldered . Personally I would let a gun smith do it and I think it would have to be reproofed Quote Link to comment Share on other sites More sharing options...
pigeonstool Posted April 5, 2011 Report Share Posted April 5, 2011 soldered = silver solder = 700 degrees = red hot ! ! = metal's structure WILL be altered = VERY HIGH RISK OF INJURY / DEATH - Only to be performed by a very experience gunsmith ..... your choice ? ? Quote Link to comment Share on other sites More sharing options...
mfletch Posted April 5, 2011 Report Share Posted April 5, 2011 If it was me I would give it a go with the mig welder Immerse the barrels in water with just the lug showing then do short welds cooling immediately Quote Link to comment Share on other sites More sharing options...
mrikirkby Posted April 5, 2011 Author Report Share Posted April 5, 2011 It will only be a couple of splats with a mig on the bracket but still unsure ! I did mix some twin pack araldite/metal type stuff the other night for some thing else and a bit is still stuck on my bench and us absolutley rock hard and wont budge. I may try a bit of this on it and reshape it so its a hook again and see how that goes. Quote Link to comment Share on other sites More sharing options...
PhilR Posted April 6, 2011 Report Share Posted April 6, 2011 Some years ago I was using a friend's Zoli side by side, with a view to purchasing it, and the fore-end came away in my hand when I fired it. The hook on the underside of the barrels had fallen off. It seems it wasn't the first time it had happened and before I got hold of it he'd used Araldite to glue the hook back on the barrels instead of taking it back to the gunsmith to effect a proper repair. Quote Link to comment Share on other sites More sharing options...
Catweazle Posted April 6, 2011 Report Share Posted April 6, 2011 I'm not a professsional welder, just an enthusiastic amateur. I would do it with TIG in a number of short steps with plenty of time to cool between. TIG creates a very hot but small area which would allow you to properly weld a small amount of filler each time. It also leaves the weld perfectly clean, so you wouldn't have to clean the weld up each time. Quote Link to comment Share on other sites More sharing options...
Dunkield Posted April 6, 2011 Report Share Posted April 6, 2011 It seems it wasn't the first time it had happened and before I got hold of it he'd used Araldite to glue the hook back on the barrels instead of taking it back to the gunsmith to effect a proper repair. Is he still a friend of yours Phil? :blink: Quote Link to comment Share on other sites More sharing options...
PhilR Posted April 6, 2011 Report Share Posted April 6, 2011 Is he still a friend of yours Phil? :blink: Why should you should ask that? I haven't seen him for a number of years probably due to this little problem and the non repayment of some folding stuff I lent him Quote Link to comment Share on other sites More sharing options...
stokie Posted April 6, 2011 Report Share Posted April 6, 2011 (edited) Double post Edited April 6, 2011 by stokie Quote Link to comment Share on other sites More sharing options...
stokie Posted April 6, 2011 Report Share Posted April 6, 2011 I am a welder and I wouldn't risk mig or tig as even though it is localised heat it still runs at 1200 degres and there is a risk of distortion inside the barrels If you do any of the above the gun will surely need reproofing Are you prepared to risk having a barrel blow up in you face Quote Link to comment Share on other sites More sharing options...
Tonic Posted April 6, 2011 Report Share Posted April 6, 2011 I agree with stokie on this. Even in short bursts welding is crazy hot. A slightly less risky approach would be to machine a new hook then braze/solder it on. Safer still, if there is enough stub left, drill a hole through it and bolt on an extension, then modify the fore-end accordingly. Short answer: get it to a gunsmith. Quote Link to comment Share on other sites More sharing options...
fuzzypigeon Posted April 6, 2011 Report Share Posted April 6, 2011 As for heat in the barrels from welding the metals structure would change but left to cool on it's own in air the metal will normalise(take it back to it's original state before any heat treatment was ever performed) or you can quench it to harden it Quote Link to comment Share on other sites More sharing options...
fuzzypigeon Posted April 6, 2011 Report Share Posted April 6, 2011 (edited) Surely to weld that you would need to pack the barrel to stop distortion? Edited April 6, 2011 by fuzzypigeon Quote Link to comment Share on other sites More sharing options...
Catweazle Posted April 6, 2011 Report Share Posted April 6, 2011 Have I misunderstood the original post ? I imagined that the tip of the hook had snapped off, in which case a quick TIG wouldn't get the barrels hot enough to damage them. You could even fill the barrels with water if you were worried. Quote Link to comment Share on other sites More sharing options...
drut Posted April 6, 2011 Report Share Posted April 6, 2011 Have I misunderstood the original post ? I imagined that the tip of the hook had snapped off, in which case a quick TIG wouldn't get the barrels hot enough to damage them. You could even fill the barrels with water if you were worried. I agree totally. Quote Link to comment Share on other sites More sharing options...
mrikirkby Posted April 6, 2011 Author Report Share Posted April 6, 2011 yep the bracket is still attached to barrels very well but the tip of the hook has broken off so just need to add to existing metal bracket not to barrels directly ? Quote Link to comment Share on other sites More sharing options...
Albion Posted April 6, 2011 Report Share Posted April 6, 2011 In that case, a quick dab with your mig should be ok if you keep the barrels cooled. Quote Link to comment Share on other sites More sharing options...
stokie Posted April 6, 2011 Report Share Posted April 6, 2011 Now he says Get the mig out .... If its not been welded directly to the barrel wall then it will be fine . I thought you were reattaching the whole bracket Quote Link to comment Share on other sites More sharing options...
mrikirkby Posted April 7, 2011 Author Report Share Posted April 7, 2011 No sorry chaps was a bit hard to explain. Bracket is still attached to barrel walls but the tip if the hook is broken of so i was going to dab a couple of welds on it and reshape the tip of the hook. As it is its not enought for the fore end to catch on to it. Quote Link to comment Share on other sites More sharing options...
webber Posted April 7, 2011 Report Share Posted April 7, 2011 No sorry chaps was a bit hard to explain. Bracket is still attached to barrel walls but the tip if the hook is broken of so i was going to dab a couple of welds on it and reshape the tip of the hook. As it is its not enought for the fore end to catch on to it. A picture saves a thoudand words. webber Quote Link to comment Share on other sites More sharing options...
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