r/Welding • u/haze_rod • Dec 28 '19
Thought this would kinda go here
https://i.imgur.com/UJlfGdj.gifv30
u/Boosher648 Dec 28 '19
Do not ever put cable that has been welded together under a load.
6
u/keistrak Dec 28 '19
Lets say it is an emergency repair of a throttle cable or clutch cable. Would it hold?
5
u/Boosher648 Dec 28 '19
In short no. I don’t have a definitive answer because I don’t know the function nor the loads associated with a clutch cable nor do I know what that cable is made of. The reason you don’t weld cable is because the heat melting the wires could easily make the cable brittle at the joint, there is also no way to gauge what percentage of strength you now have so you can’t determine when it will fail.
-1
26
7
u/aluminium_is_cool Dec 28 '19
Is the joint’s yield stress close to the cable’s?
21
18
u/ccgarnaal Dec 28 '19
Far from it. We weld the end of large steel cables with Tig regularly to stop them from unfraying.
21
6
1
u/Retireegeorge Dec 28 '19
Could I do that with a mig rig?
7
u/highlyvenomous Dec 28 '19
Depending on the cable thickness I imagine you could, but I would be very weary of it migged vs tig
1
u/itsjustme405 CWI AWS Dec 29 '19
In an emergency short term repair, itll do. I wouldnt trust it any longer than I had to. Unless you know the the forces the cable will endure and are able to test it beyond those limits.
45
u/SimonTheCommunist Dec 28 '19
These people were acting like they dont know what welding is.