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Starts welding good then doesent

Made six three inch passes on a steel table legs. when i tried welding the wheels on nothing but pin holes and spatter. wire size .030 . gas is 75/25 argon. steel was clean . its done this before.

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Check the gas flow, set around 15-20lts/min, check that gas is coming out of the nozzle by using an add on flow meter to the nozzle if there is a difference then you have a leak in the line and will be drawing air into the gas stream which will cause the holes,
using a gas flow that high will also cause porosity. gas should be
argon/oxy or argonC02 mix 2% or 20%

Posted on Jan 23, 2009

  • Ron Jones
    Ron Jones Jan 23, 2009

    Make sure you have the torch at the correct angle to give good gas coverage

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Hi, This problem has happen to me, My solution was a grounding problem. Take your ground cable, and put it on the table leg.

If this doesn’t work for you, please write back. Thanks,

Posted on Nov 28, 2008

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Miller 300D I'm having issues striking an arc even when I have it turned up to 140. Or when welding the rod just sticks in the middle of a pass. Welding structural steel with 7018 1/8 Excalibur rod. Any...


The problem might be with your rods. It sometimes happen that the flux around te metal becomes soft if the rods were kept where there is a lot of moisture. If that is the case you can 'bake' the rods in the oven to dry it our. The flux must have a lower melting poit than the metal rod so that it can make a cup. The edges of the cup keep the rod away from the metal, allowing the arc to jump.
How do you 'strike' an arc? One method is to tick on the metal. A better method is to stike the rod over the metal like you stike a match. This action will give you the 'cup' that you need to start welding.
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Tip

How to set ark welders with more than fifty foot of welding cable



This tip is referring to welding machines using fifty foot add on sections of welding leads.
Number one: Set the machine with just the stinger whip(six to eight foot long) and a fifty foot ground lead.The ground lead can be shorter.
Number two: Get a piece of scrap plate the same thickness as you will be welding.
Number three: Set the plate in the position you will be welding in and clamp the on ground to to plate.
Number four: Turn on machine and set amperage dial to the size of rod.(if your using 1/8 rod set for 125 which is the decimal equivalent of 1/8) using decimal equivalents will get you in the ball park but depending on the coating , thick or thin you will have to adjust from there.
This will work for rods like stainless that have high resistance to current.
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DCEP
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Weld a new near side panel on a ford transit or a data sheet with sizes or any relevent infomation


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Have a 120 volt 70 amp stick welder what gauge or stick type do i use


1/16th stick to 3/32nd.
3/32nd being the maximum. Don't use 3/32 for an extended period of time, or you can burn up that welder. (Even if it has a fan. If it doesn't have a fan built-in, I invite you to put a house box fan, close to the ventilation slots for the welder)

I would also recommend using 6011 rod. It's a mild steel rod, and is excellent to begin with. Usually used for filling, and medium strength situations. It does splatter, be aware of that.

Not trying to give you a tutorial on beginning welding, but would like to offer some tips:

1.Make sure the ground clamp has a good, clean surface it's clamped to. If not, it will be very hard to get the rod started, and also to keep it going. (Makes bad welds too)

2.Start with a B U T T weld. (Had to type it that way do to censorship of certain words)
That's laying two pieces of metal next to each other, and laying a bead in-between them. Easiest thing to start with. Go to corner welds next, (Two pieces together at a 90 degree angle), then try Uphill welds.

3.Shield flipped up on helmet, welder on. Lay the rod past the area you are going to start on. Past the metal edge. Lay the ->flux coating of the rod on the edge of the metal piece. The tip of the rod is past the metal edge by at least two inches.

This way you are lined up to begin the weld. Then flip your shield down, draw the rod back, until the tip of the rod touches the metal. Once the arc starts, lift the rod up a little to get the correct height, and keep that arc going.

4.Watch the PUDDLE, not the arc! You are watching the melted metal in front of the arc. You need to see how that puddle is doing, in order to compensate by bringing the rod closer, or further away.

5.Use a Zig-Zag pattern to begin with. Keep the Zig-Zag close to each other, until you are comfortable enough to make a longer pattern. Watch the penetration. Good penetration is the key, not a pretty weld.

6.Use the proper safety equipment. If the welding helmet lens has a tiny little scratch, you will burn your eyes. NO fun, believe me!
You won't know it until you wake up the next day with your eyes swelled shut!

Cover your arms, and use welding gloves. Welders give can give you a radiation burn, worse than a bad sunburn. NEVER just start welding a little with No welding helmet. Welding goggles are for the birds, or Acetylene welding!

Be safe, have fun welding!

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1 Answer

Hand truck tires


Go to your local hardware store like ace or true value. They normally are in the parts boxes near the bolt section. Be sure to measure your axle diameter & get the right size. Rick

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