Welding question |
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Welding question |
PeeGreen 914 |
Mar 22 2009, 10:17 PM
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#1
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Just when you think you're done...wait, there is more..lol Group: Members Posts: 10,219 Joined: 21-September 06 From: Seattle, WA... actually Everett Member No.: 6,884 Region Association: Pacific Northwest |
So I am welding in the Tangerine Racing inner consol reinforcement. If I have the welder set on three it doesn't bite into the ear. If I have it set on four it bites but it blows holes in the new piece. I was able to get two holes filled and they are definitely welded on. However, I am wanting to know before I do more if going on the four setting will be right and not damage anything. Three just doesn't seem to cut it.
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dlestep |
Mar 30 2009, 08:46 PM
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#2
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I am smilin'... Group: Members Posts: 890 Joined: 15-January 08 From: Sunrise Florida Member No.: 8,573 Region Association: South East States |
...I use argon/co2 mix shield gas...my settings are one (1) with wire feed speed at 3 to 3 1/2. I use approximately a .250-.325 wire distance from tip. Set the shield gas between 15 to 20.
The trick is to attain a single strike constant arc, not feeding the wire too fast and creating a popcorn string of cold welds. When you feed too much wire, the wire will attempt to push your tip away, over and over again, and your ground connection will get really hot because you will be striking arcs one after another. That initial constant single arc strike creates a smooth line of weld (pool). That's when you will hear the familar frying bacon sound. Keep a smooth constant progression. Not too fast and not too slow. By the way, move too slow and the weld pool can drip on you or something and ignite material. Keep the weld blanket over everything including your feet and legs. Complete only one inch at a time. When you are welding and it doesn't seem to keep the arc, degrease the area, and remove coating from steel in the area of the welds. The other reason is that you ground the tip, try not to do that. If your feed is too slow, you will experience burn back. Which means your wire has fused to the tip. If the metal is overlaped (lap weld) keep the wire end split between the two surfaces (45 degrees). If you run along the edge, the weld will only penetrate the first layer of metal and the second sheet will act as a heat sink, and you will have no penetration into the second sheet. If you are accomplishing a butt weld (end to end), then using the gap clamps from Eastwood and their three copper plates, you can do a clean job of it. When butt welding two pieces, keep the arc against what you just laid and just so slightly move from side to side. If your wire fires through the void, you will loose the arc and regain it over and over and end up with a hairy weld. The copper backing plates act as a heat sink and the weld doesn't stick to it. Don't rush and remember the duty cycle. It will let you know when your time is up. There's nothing like striking that arc and creating a beautiful smooth weld. Use both hands in this. Use finger of you left hand as a bridge for the tip. 90 percent of this is steady control and that single initial blue arc about a 1/4 inch away. Once you have the control, you will feel that you can accomplish any welding requirements. |
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