See how long it will take to bore weld your job
  • Use a good quality wire with a large "cast". Check cast by pulling off 5 or 6 feet of wire, drop it on a hard floor, and measure the resulting diameter. If it is 48" or greater, you have a desirable cast wire...if diameter is under 48" you may experience slight weld bead instability.  TRY OUR NEW 70S6 SOLID ULTRA LARGE CAST WIRE AVAILABLE IN .030" and .035".  You'll Love It!  For .030" order part no. 1103, for .035" order part no. 1202
  • For steel welding we recommend a gas shield mixture of Argon and CO2.  Percentage of Argon minimum:75%, maximum: 92% flowrate varies but indoors generally 25--30 cfh is sufficient.  Outdoor welding may require that you cap the end of your bore with tin foil, this will help contain shielding gas if windy.
  • Use a power supply that allows voltage adjustment while you are welding. Click-type voltage adjusters do not allow fine adjustment once your bore welder has started.
  • For skip welds or bores where you only need to build up a portion of the bore, we recommend hooking your BOA up to a wirefeeder that has a burnback control installed. 
  • Set torch nozzle stick-out at about 1/8" from workpiece bore. 
  • Use proper torch rotation speed. Measure bore you will be welding in and refer to chart on borewelder for approximate speed setting.  To vary buildup thickness you may adjust rotation speed and/or wire feed rate. 
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Phone: 603-835-2409
Fax: 603-835-2609