Thermal Arc ARCMASTER 200 S

Questions and Answers

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Mr. William HarrisAug 15, 2025
What to do if the electrode melts or oxidizes when an arc is struck on my Thermal Arc Welding System?
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  Erica GarnerAug 15, 2025
  If the electrode melts or oxidizes when an arc is struck while using your Thermal Arc Welding System, it could be due to several reasons. It might be because there's no gas flowing to the welding region, the torch is clogged, the gas hose is cut, the gas passage contains impurities, the gas regulator or torch valve is off, the electrode is too small, or the WAVE BALANCE is set too high. To address this, check the gas lines and cylinder, clean the torch, replace the gas hose if needed, blow out impurities from the gas passage, turn on the gas regulator and torch valve, increase the electrode diameter or reduce the welding current, and reduce the WAVE BALANCE to below 50% or increase the electrode size.
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millsvincentAug 18, 2025
What to do if portions of the weld run do not fuse to the surface of the metal or edge of the joint with my Thermal Arc ARCMASTER 200 S?
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  Matthew TuckerAug 18, 2025
  If you're experiencing portions of the weld run that aren't fusing to the metal surface or joint edge when using your Thermal Arc Welding System, it could stem from several causes. You might be using small electrodes on heavy, cold plate, the welding current might be too low, the electrode angle could be incorrect, the travel speed might be too high, or there could be scale or dirt on the joint surface. To fix this, use larger electrodes and pre-heat the plate, increase the welding current, adjust the electrode angle to direct the arc into the base metal, reduce the travel speed, and clean the surface before welding.
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Stacy MurphyAug 21, 2025
Why does the electrode melt when the arc is struck on my Thermal Arc ARCMASTER 200 S?
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  Drew JonesAug 21, 2025
  If the electrode melts when the arc is struck while using the Thermal Arc Welding System, it could be because the electrode is connected to the '+' terminal or the WAVE BALANCE is greater than 50%. To resolve this, connect the electrode to the '-' terminal and reduce the WAVE BALANCE to below 50% or increase the electrode size.
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lauren24Aug 25, 2025
What to do if I have a dirty weld pool when using my Thermal Arc ARCMASTER 200 S Welding System?
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  Tracey HickmanAug 26, 2025
  If you're getting a dirty weld pool with your Thermal Arc Welding System, it could be due to a contaminated electrode or gas. The electrode may be contaminated from contact with the work piece or filler rod material, or the gas may be contaminated with air. To fix this, clean the electrode by grinding off the contaminants and check the gas lines for cuts and loose fittings, or change the gas cylinder.
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hrobertsAug 28, 2025
What to do if welding arc can not be established on Thermal Arc Welding System?
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  Kevin LindseyAug 28, 2025
  If the welding arc cannot be established with your Thermal Arc Welding System, it could be due to a few reasons: the work clamp isn't connected, the torch lead is disconnected, or the gas flow is incorrectly set. Make sure the work clamp is connected to the work piece, connect the torch lead to the '-' terminal, and select the correct gas flow rate, change the cylinder, or turn the torch valve on.
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bduranAug 31, 2025
How to improve poor weld finish on Thermal Arc ARCMASTER 200 S?
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  Samantha HarmonSep 1, 2025
  If you're getting a poor weld finish with your Thermal Arc Welding System, it's likely due to inadequate shielding gas. Increase the gas flow or check the gas line for any problems affecting gas flow.
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melanieperezSep 3, 2025
Why is the arc start not smooth on my Thermal Arc ARCMASTER 200 S Welding System?
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  Leah HoweSep 3, 2025
  If your arc start isn't smooth with your Thermal Arc Welding System, it could be due to several factors: the tungsten electrode is too large, the wrong electrode is being used, the gas flow rate is too high, the wrong shielding gas is being used, or there's a poor work clamp connection. Select the right size and type of electrode, adjust the gas flow rate, use the correct shielding gas, and improve the work clamp connection to resolve this. Refer to the Basic TIG Welding Guide for more information.
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Herbert ThomasSep 7, 2025
How to fix uneven leg length in fillet joint on Thermal Arc ARCMASTER 200 S?
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  April WallaceSep 7, 2025
  If you're experiencing uneven leg length in a fillet joint when using your Thermal Arc Welding System, it's likely due to incorrect placement of the filler rod. Try re-positioning the filler rod to correct this.
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Steven CarrollSep 12, 2025
What causes slag inclusion in my Thermal Arc ARCMASTER 200 S Welding System?
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  fuentessamanthaSep 12, 2025
  If you're noticing non-metallic particles trapped in the weld metal (slag inclusion) when using your Thermal Arc Welding System, it could be due to several factors: non-metallic particles trapped in undercut, restricted joint preparation, irregular deposits, lack of penetration, rust or mill scale, or using the wrong electrode. Clean the slag out, allow for adequate penetration, chip or grind out irregularities, use a smaller electrode with sufficient current, clean the joint, and use electrodes designed for the welding position.