Lincoln Electric — Making a TIG Weld with an Amptrol
Operation · TIG torch / Amptrol remote
From a Lincoln Electric operator's manual — check it applies to your exact model before use.
Procedure
- Install welding equipment per Section A-5.
- Set up controls per Section B-10.
- Turn on the shielding gas supply, and torch coolant input supply if used.
- With the torch held safely away, close the Arc Start Switch of the Amptrol and set the gas flow meter, then open the switch.
- Position the tungsten electrode at the start of the weld at a 65° to 75° angle, about 1/8" (4 mm) above the work piece.
- Close the arc start switch; after the 0.5 second preflow time the high frequency becomes available to strike the arc.
- Hold the arc start switch closed at minimum Amptrol Start level until an arc is established, then increase output to the desired welding level and push the torch in the direction of travel.
- At the end of the weld, decrease the Amptrol output to the crater-fill level before releasing the arc start switch to start the Postflow time.
- Hold the torch gas shielding over the solidifying weld crater while postflow time expires; repeat steps 5 through 7 to make another weld.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Preflow time: fixed 0.5 second
- Postflow time: adjustable about 2 to 60 seconds
- Tungsten electrode angle: 65° to 75° with the horizontal
- Electrode height above work: approximately 1/8" (4 mm)
Source: Lincoln Electric operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.