in midst of takin me diff out of me holden to weld.. but wondered if theres any benefit using one welding type over another. would mig do it fine, or arc? or in other words, what gives best penetration and strongest weld. any tips for welding as well. cheers. *edit* can i get away with just taking the diff cover off, and getting a welder in there, or must i take the diff to peices. cheers again. - and dont need a lecture on how 'bad' it is to lock it, its just for skids and skids only hence the need to be strong.

go the arc

arc is better penetration but it makes no difference cos its not the weld that breaks it's the heated treated steel around it.

Ven33m is right... go arc, way cheaper

heat treated* u can get minispools for round $100

do i need to take apart the diff to weld it, or can i just open the cover and crank some weld, n be done with it.. a mate has 175amp mig welder, hoping thatll be ok?? cheers guys.

Pull the diff out, u'll never get all the spatter out and u'll end up doing a bearing... I'd go mig if u have 1. Just arc's are cheaper so usually higher power. 250A at a mimium to really get in there.

And use 4mm high carbon rods!

yes, very important to use the right rods if you want it to last, and you MUST remove the centre...

i recently weld one. yeh you gota disassmble the centre to do it properly

Go the MIG. 175A aint alot of power so id crank it up full bore and she'll be sweet. Being a first class welder, I should know! Use Argoshield Universal Gas sometimes called Corgon. It is a mixture of Argon, C02 and Oxygen. With that use 0.9mm solid core steel wire coated in copper (standard MIG wire). If you are going to go gasless, you MUST use 'gasless wire' so go with 0.9mm Flux cored wire also copper coated. Remember with flux cored wire it creates slag ontop of your weld (same with arc) so chip the slag off with a cold chisel or chipping hammer while the weld is still hot. Any other questions about welding just ask!

Quote: Originally Posted by Stocko 88 Go the MIG. 175A aint alot of power so id crank it up full bore and she'll be sweet. Being a first class welder, I should know! Use Argoshield Universal Gas sometimes called Corgon. It is a mixture of Argon, C02 and Oxygen. With that use 0.9mm solid core steel wire coated in copper (standard MIG wire). If you are going to go gasless, you MUST use 'gasless wire' so go with 0.9mm Flux cored wire also copper coated. Remember with flux cored wire it creates slag ontop of your weld (same with arc) so chip the slag off with a cold chisel or chipping hammer while the weld is still hot. Any other questions about welding just ask! This has nothing to do with the diff welding but :P can you weld stainless steel with a mig? or should i just pay someone to do it properly with a tig my neighbour has a huge 3 phase mig welder top quality, will that do it ?

Quote: Originally Posted by Wilko16 This has nothing to do with the diff welding but :P can you weld stainless steel with a mig? or should i just pay someone to do it properly with a tig my neighbour has a huge 3 phase mig welder top quality, will that do it ? Absolutely, I do it almost weekly at work with a MIG. It is just as easy and simple to MIG weld as steel! All you need is a wire spool of 0.9mm stainless steel wire (from BOC or any welding supplier). Good brands to buy are WIA, CIGweld, BOC, Lincoln Electric, Liquidarc. Just use the same gas as you would for steel - Argoshield Universal (Corgon). It should look really good after it is welded. If you are wanting to smooth off the welds with a grinder, dont use a grinding disc, use a 60 grit 'flap' disc (a sanding disc). Just out of interest, what are you planning on welding up??

Quote: Originally Posted by Stocko 88 Absolutely, I do it almost weekly at work with a MIG. It is just as easy and simple to MIG weld as steel! All you need is a wire spool of 0.9mm stainless steel wire (from BOC or any welding supplier). Good brands to buy are WIA, CIGweld, BOC, Lincoln Electric, Liquidarc. Just use the same gas as you would for steel - Argoshield Universal (Corgon). It should look really good after it is welded. If you are wanting to smooth off the welds with a grinder, dont use a grinding disc, use a 60 grit 'flap' disc (a sanding disc). Just out of interest, what are you planning on welding up?? Thanks heaps mate, I had heard it could be done but wasnt sure how it would turn out, I will be making some cooler pipes out of stainless soon and was gonna need to weld them, I got those flap disc's already they are the best things But the main reason :P is Fishing season is coming up and i need to make some new rod holders and other bits and pieces out of stainless for the boat thanks again Some original photos have not been recovered yet.

i do u go about fusion welding stainless with the oxy? it would be neater for pipe work aye