fortune Posted December 14, 2013 Report Share Posted December 14, 2013 There are many ways to achieve what you want. If you cant go back to your work and get someone to weld or braze them up and your only way is to do it yourself then this is how I would do it. As this is not a high stress load area I would skin a bit of cable back and get some thin strands of the flex or some other source like 30 amp fuse wire. I would then bind up the joint wires into the position that you want and then make a small hearth out of some brick or the like to keep the heat where you need it and then using a plumbers stick solder (the big stick stuff) with a bit of flux joint the whole lot together. If some small diameter copper tube is available then you could cut some rings and solder that around the joint to give it a bit more strength. this would make a joint with more than enough strength to do what is required of it and it is easy to do and easy to repair or modify if it is needed. If you do this type of joint remember to clean all the parts with either wire wool or emery cloth so that when you apply the solder that it will flow easily and give a good strong joint. RULE>> 5 minutes cleaning, = 1 minute soldering not he other way round. Quote Link to comment Share on other sites More sharing options...
pigeon controller Posted December 14, 2013 Author Report Share Posted December 14, 2013 Aye, Rothenberger Sure fire and Mapp gas will be all you need, it's what I use. Oh, don't forget to use brazing flux (normally a powder, dip a hot rod into it), plumbers flux isn't really up to the job. I've got a tin ready for a dip, thanks. PC you might want to use a fire brick to bounce back some reflected heat Obtained fire bricks for hearth ready to go. Quote Link to comment Share on other sites More sharing options...
pigeon controller Posted December 14, 2013 Author Report Share Posted December 14, 2013 There are many ways to achieve what you want. If you cant go back to your work and get someone to weld or braze them up and your only way is to do it yourself then this is how I would do it. As this is not a high stress load area I would skin a bit of cable back and get some thin strands of the flex or some other source like 30 amp fuse wire. I would then bind up the joint wires into the position that you want and then make a small hearth out of some brick or the like to keep the heat where you need it and then using a plumbers stick solder (the big stick stuff) with a bit of flux joint the whole lot together. If some small diameter copper tube is available then you could cut some rings and solder that around the joint to give it a bit more strength. this would make a joint with more than enough strength to do what is required of it and it is easy to do and easy to repair or modify if it is needed. If you do this type of joint remember to clean all the parts with either wire wool or emery cloth so that when you apply the solder that it will flow easily and give a good strong joint. RULE>> 5 minutes cleaning, = 1 minute soldering not he other way round. I've brazed some already at my sons school using natural gas and air so I know the form . Thank you all for the information and helpful answers to my question. Quote Link to comment Share on other sites More sharing options...
ditchman Posted December 15, 2013 Report Share Posted December 15, 2013 What gas would you recommend propane or Mapp??? MAPP gas is fine...as the previous post say dont overheat what you are welding, cherry red is fine, buy yourself a tub of siflux its about 12 or so quid and will last for ages....if you are using fencining wire it will proberly be coated in zinc (galvinised) you must remove the coating as it will braze badley and it will produce cyanide gas it looks like a greeny bluey smoke and will make you ill like bad flue....the brazing rods for wire should be around 2mm dia............ Quote Link to comment Share on other sites More sharing options...
sonicdmb Posted December 24, 2013 Report Share Posted December 24, 2013 Yes Work Harden , engineering term , as you try to push them into frozen ground pre dawn the frame has a tendency to bend but the weld is strong you have to bend them back into shape or position to make the bird look natural over time the bending by the weld makes the frame break and eventually to be replaced. Hence the original question/post Are you referring to metal fatigue due to repeated bending next to the weld when you straighten them? Quote Link to comment Share on other sites More sharing options...
pigeon controller Posted December 25, 2013 Author Report Share Posted December 25, 2013 Are you referring to metal fatigue due to repeated bending next to the weld when you straighten them? Yes, that's why I have to replace them. Quote Link to comment Share on other sites More sharing options...
sonicdmb Posted December 25, 2013 Report Share Posted December 25, 2013 Ok I thought I'd ask as the two are not the same thing. steel does not work harden while brass (those who reload will of come across this) does. A welded joint would be stronger than brazed. Normalizing/annealing the joint after welding would probably help reheating to blue rather than red heat then allow to cool. Quote Link to comment Share on other sites More sharing options...
pigeon controller Posted December 25, 2013 Author Report Share Posted December 25, 2013 Ok I thought I'd ask as the two are not the same thing. steel does not work harden while brass (those who reload will of come across this) does.A welded joint would be stronger than brazed. Normalizing/annealing the joint after welding would probably help reheating to blue rather than red heat then allow to cool. Thanks I will try that with the ones in complete. Quote Link to comment Share on other sites More sharing options...
figgy Posted December 25, 2013 Report Share Posted December 25, 2013 Get hold of some welding rods to make your cradles welds/brazes better than fencing wire. Personally a cheap second hand inverter welder with a tig torch is the way to go as it will do virtually any small fabrication job you would want to do. Figgy Quote Link to comment Share on other sites More sharing options...
figgy Posted December 26, 2013 Report Share Posted December 26, 2013 Get hold of some welding rods to make your cradles welds/brazes better than fencing wire. Personally a cheap second hand inverter welder with a tig torch is the way to go as it will do virtually any small fabrication job you would want to do. Figgy Quote Link to comment Share on other sites More sharing options...
Fisheruk Posted December 26, 2013 Report Share Posted December 26, 2013 What gas would you recommend propane or Mapp??? Mapp definitely. Quote Link to comment Share on other sites More sharing options...
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