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Old 09-02-2005, 07:11 PM
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welding sheetmetal

hey fellow rodders,recently i was at a friends shop watching him grind some welds in the middle of a door skin and was amazed with how his welds seem to flatten out so easy without warping the surface.he was using a mig welder and when he took a break i told him when i grind it seems like it takes forever and generates a bunch of heat. as soon as i was done he smiled and we walked over to the welder and lifted the cover the wire he was using was called EZ GRIND he explained that regular mig wire has 70,000lbs. tensile strenth,very hard and brittle.then he explained that EZ GRIND mig wire has 30,000lbs tensile strengh,a lot softer and plyable wire.less grinding less heat less warpage very neat stuff.he said for sheetmetal 30,000lbs was plenty strong.your local welding supply has it,most body shops use it. he also said to make sure which roll of wire is in the welder before you start,EZ GRIND is not for unibody or chassis welding for any reason!! just when you were gonna throw in the towel give it a try ya won't be sorry! good luck
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Old 09-02-2005, 08:08 PM
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I agree this is some really good stuff, I used it on a chop job a few years ago and the welds flowed better, hammered nicely and also as advertised was easy to grind. It is pricey though IMO and I haven't been able to justify the extra expense since my welding supplier doesn't stock it. I guess maybe I'm just cheap . I had another soft mild steel wire that came with my Marquette welder, I'm sure it was probably just some cheap universal manufacturing grade wire but dam it welded nice and was very workable. If you do an internet search for welding wire or welding supplies you'll find there are many manufacturing grade low carbon mild steel wires available for cheap. I've been tempted to order a few rolls for testing and I bet there's some available that are comparable or better than the easy grind. The steel in the old cars sure is soft/mild.
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Old 09-03-2005, 11:03 AM
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ER70 S_2, S-3 will also grind easy and has a lower tensile strength. Perhaps that's what they're selling as "easy grind" and getting extra $ for it. You may wanna check into it. Should be the same price, or actually less. Great for sheet metal.
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