welding aluminum through MIG gun
Tue, 31 Aug 2021 14:56:44 GMT
I've got a customer i weld thick aluminum for. This is really the only time i weld aluminum. I just bought a miller xmt 456 and I'm wondering if i should invest in a push pull gun, or will the standard MIG gun be alright or will i run into feeding issues? I'll have a seperate trflon liner I'll use solely for aluminum. Material thicknesses range from 3/4" to 12" thick. Wire diameter im using is .047". I may upgrade to 1/16". A spool gun will not work due to space constraints. I dont think the push pull guns will work directly plugged into this welder, i think i would need an XR-A controller, so that's something to consider as well. I'll be a couple grand into the push pull set up. So will it make my life that much easier?John 3:16(2) Miller Pheonix 456(2) Millermertic 252Dynasty 210DXHobart 210MVPDoringer D350 SA Cold SawScotchman 350LT Cold SawWebb 10x50 MillWebb 15x40 LatheGeka Bendicrop Ironworker
Reply:Miller 30a has an optional flex head that may work for you. Also the can rotates. May be cheaper enough to be more attractive.
Reply:Hello Econdron, short of investing in a push/pull system or a spool gun you may be able to feed aluminum wire through a short whip (10 to 12 feet) with a teflon liner as you mentioned. So if you are using 5356 filler wire, (it's stiffer and feeds better than 4043) and preferably.045 or larger diameter and you can keep the gun assembly relatively straight it will feed and weld pretty good. A little bit of experimentation might be in order to figure out if this will work for you. Good luck and keep us posted on your progress. Good luck and best regards, Allanaevald
Reply:Originally Posted by aevaldHello Econdron, short of investing in a push/pull system or a spool gun you may be able to feed aluminum wire through a short whip (10 to 12 feet) with a teflon liner as you mentioned. So if you are using 5356 filler wire, (it's stiffer and feeds better than 4043) and preferably.045 or larger diameter and you can keep the gun assembly relatively straight it will feed and weld pretty good. A little bit of experimentation might be in order to figure out if this will work for you. Good luck and keep us posted on your progress. Good luck and best regards, Allan
Reply:Another thing that helps is getting a neck for the mig gun with a smoother flowing angle. Also knurled U groove drive rolls will work best.
Reply:Material 3/4" to 12" thick?
Reply:Originally Posted by BrianCMaterial 3/4" to 12" thick?
Reply:Econdron, the big advantage to the push/pull set-up is the ability to use the larger spools of wire and also have a bit more freedom to move about without having to move another piece of equipment, possibly 15', 30', and 50' whips give you that ability. Regardless of the push/pull manufacturer you will not have the accessibility with a push/pull system that is afforded with a conventional mig gun assembly at the gun end of the unit. Best regards, Allanaevald
Reply:Originally Posted by M J DAnother thing that helps is getting a neck for the mig gun with a smoother flowing angle. Also knurled U groove drive rolls will work best.
Reply:Originally Posted by EcondronYes. Well guess I should say up to 12" diameter. It's some big, heavy aluminum.So I think I'll try it through the MIG gun, see how things go, and if I'm having too many feeding issues I'll go with a spool gun with the flex neck. That would actually work better than the Aluma Pro gun. I didn't know they made that. So I'll probably buy a 30A spool gun, WC24 control, and the flex head. Anything I'm missing? This will also work with a pulser, correct?
Reply:Originally Posted by soutthpawI don't see how? Putting all those nicks in soft wire and trying to push it 10 get or more through a liner is asking for trouble. Smooth U rolls that can slip if excessive resistance and not damage the wire during feeding are the standard for feeding aluminum.
Reply:Originally Posted by M J DLook at the rolls in a 30A. Miller probably knows something you don't.
Reply:I don't know what a 350p uses, push pull gun I can see smooth rollers working well. Trying to push wire the problem I had with smooth rollers was having to use more pressure than a knurled roller which led to birds nesting. Pushing soft wire sucks no matter how you go about it.
Reply:Originally Posted by M J DI don't know what a 350p uses, push pull gun I can see smooth rollers working well. Trying to push wire the problem I had with smooth rollers was having to use more pressure than a knurled roller which led to birds nesting. Pushing soft wire sucks no matter how you go about it.
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