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Willvis
Senior Member
Last Activity: Today, 12:28 PM
Joined: 11-19-2018
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  • Ck world wide torch is better and cheaper. Otherwise yes that is the right torch. Maybe you can get one with the dinse connector built in I think? I just have one of those power block adapters. Also you cant build a cooler for what an everlast one costs.
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  • One thing I leaned recently is that the same shape of aluminum with the same load will have 3 times the amount of deflection as the same shape of steel. Its caught me off gaurd a few times especially with a couple trailers I built for myself recently. You definitely need to be more careful with the...
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  • I missed that. Add some mid posts and you should be ok. Still id go 1.5 square tube just to be safe
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  • You need to think of the top of that as a beam. Without any posts then that beam has to be strong enough for the weight of the car. So lets just say 2000 lbs (really no idea on the weight is since you didn't answer the question on what vehicle its for). So a span of 34.5" with a point load of 2000...
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  • In terms of a "beam" wall thickness does not add that much strength. You gain far more strength from height than from thickness. Having said that I wouldn't use less then 1/8. Draw up some sketches so we can critique the design. 1x1s is not all that strong so your gonna need pieces fairly...
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  • Willvis
    replied to Proper aluminium cleaning
    I love 4943, its pretty much all I use now in the MIG. I agree that 250 amps isnt enough for a TIG repair and even 300 amps would probably struggle. I think your right that those frames are probably not heat treated after welding but it is possible without use of an oven. In the oil / gas industry its...
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  • Willvis
    replied to Amps and volts
    A great write up but that I dont think some of that stuff applies as much on an inverter machine. They are using much much smaller transformers due to the fact that they are inverters. Esentially changing the incoming ac to dc and then pulsing it at very high frequrncy in order to reduce the transformer...
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  • Willvis
    replied to Amps and volts
    One other thing. The length / size of wire running to these little 110v or dual voltage machine has a pretty big effect on how they run. Plugged into an outlet close to the pannel vs 200 feet of cheap 16 gauge extension cord. Close to the outlet and it probably runs that 3/32 7018 pretty decent. Plug...
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  • Willvis
    replied to Amps and volts
    If it actually runs good then theres no reason it would not be as strong as the same weld done on any other machine. A stick welding machine is really not much more then a glorified transformer. Somebody could make a welding machine that has 300 amps output on a 120 volt input. But they never would...
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  • Willvis
    replied to Amps and volts
    Yes you can do that with a volt meter and you can also put a clamp on amp meter around a lead if you want to know the true amperage. Its not so much the 110v input that is the limiting factor as much as the actual wattage you can pull on a 15 or even 20 amp circuit. A 30 amp 240v circuit is going to...
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  • Willvis
    replied to Amps and volts
    Your not going to get 120 amps out of a 120v machine. I suppose anythings possible if it had enough input amperage but I imagine what your refering to is the machines that plug into a standard outlet. I have one little machine like that and it maxes out at like 85 amps stick and 95 amps tig. The reason...
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  • Willvis
    replied to Proper aluminium cleaning
    [QUOTE=ryanjones2150;n605570]I hear ya. Anytime you put an aluminum plate on top of another one you’re running that risk. Aluminum is crack sensitive. When you weld it, your HAZ is annealed and you’ve lost your heat treatment in that area. I’m not a truck expert, but you probably need to consider...
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  • Willvis
    replied to Proper aluminium cleaning
    Thats not an issue its not like theres some kind of cancer thats going to keep spreading if you dont get rid of it. Its far more important to get your weld area clean. Phosophoric acid will work well to clean / etch the aluminum if you want to go that route. Personally I would clean the area with something...
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  • Willvis
    replied to Sub Contractor Current Rate
    Its going to depend a lot on your location. If you can get 100-115 I think your doing pretty good. 100 / day for rig onsite sounds pretty far fetched tho. What would be the reason behind that? I've never heard of such thing.

    I think around here its around 100 - 120 / hr for mobile as well...
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