How to Hook Up a TIG Welder Setup

Welding involves heat and electricity.

Welders rely on powerful arcs of electricity to generate intense heat. The precise application of this heat allows metal surfaces to join together. TIG welding uses a tungsten electrode to deliver heat to the work surface. TIG is an abbreviation for "tungsten inert gas." Gases released by the hot tungsten shield the metal from airborne contamination. As an industrial process, TIG welding makes possible the joining of a variety of metal types. TIG welding is also known to produce clean and strong welds to suit any purpose.

Things You'll Need

• Flame-resistant clothing
• Flame and heat-resistant gloves
• Welding helmet
• Work boots

Instructions

1. Plug your torch into your power supply unit. You will typically have separate cables for gas supply and coolant intake and outflow. Ensure that these cables are all free of kinks or damage.

2. Connect your control device to the power supply. The remote control is either a foot pedal or a finger-operated unit.

3. Plug the work clamp cable into the power supply. Attach the clamp to the work table or metal piece to be welded.

4. Select the appropriate polarity for the type of welding. Aluminum welding calls for AC current, while steel welding requires DC current.

5. Grind the tungsten stick to a point. Be sure to grind along the length of the stick and not the width. This ensures a stable arc while you work.

6. Assemble the torch, leaving 1/8 to 1/4 in. of tungsten sticking out the front.

7. Connect the power supply. Check that the outlet and the power supply have the same rating, either 115 V or 230 V.

Tips & Warnings

• Always wear full protection when welding, including helmet, durable, fire-resistant clothing and sturdy work boots. Welding torches reach extremely high temperatures and can cause serious injury in an instant.

• Plug in your power supply last. You shouldn't need to do anything else with the equipment after plugging in the main power supply.

References

• Miller: TIG Welding Tips
• Miller: TIG Welding Tips