Spot Welding Aluminum Wire

Frequently bought with the hobart aluminum welding wire is the hobart spool runner 100 spool gun hobart 0 030 contact tips and hobart nozzle gel.
Spot welding aluminum wire. Eeekit rotary spot weld cutter sets double sided 13 pack 3 8 hss spot weld cutter remover drill bits hex sheet metal hole cutter remover for power drill spot welding by eeekit 17 99 17. Buy the kit here. We are doing the second run of some covers for an electronic assembly. Detailed weld settings are available in standard text books or from suppliers of the material or equipment and may depend on the detailed quality requirements and materials being used.
Match your rod filler to your welding wire. And for good reason they are what you need to get going with your spool gun supporting hobart welder. Er 4043 or er 5356 is ideal for most jobs. The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines.
Argon gas is used as a shield during the welding process. For some jobs a mixture of argon and helium can be used instead but this is very much job dependent. We are not spot welding experts in fact we make the electronics. But for the first run we used a cheap spotwelder set up with a pulse timer and got very acceptable welds.
Use three phase electrical energy to spot weld aluminum. Spot welding typically brings current for 0 1 seconds or less so the current must be very high. Lotos mig140 140 amp mig wire welder flux core aluminum gas shielded welding with 2t 4t switch argon regulator metal wire feeder black red 4 1 out of 5 stars 155 369 00 369. Obtain wire that is 3 64 or 1 16 inch diameter.
Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system. This type of electrical power is wanted for the big output current that spot welding requires. The larger the wire diameter the easier it feeds. It is formed up of 0 032 5052 aluminum and gets 4 spot welds at each end.
When using a wire welder the problems of aluminum welding increase because aluminum wire is prone to crumple and bend.