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TIG WELDING

TIG WELDING. Safety Rules. You need to always have you PPE Due to the absence of smoke in TIG the electric arc can seem brighter than in shielded metal arc welding.

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TIG WELDING

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  1. TIG WELDING

  2. Safety Rules • You need to always have you PPE • Due to the absence of smoke in TIG the electric arc can seem brighter than in shielded metal arc welding. • Although there is no smoke the brightness of the arc can cause surrounding air to break down and form ozone layer of poisonous gas. • Transparent curtains are also needed. • TIG runs on high frequency and due to this it can damage outside electronics. (cell phones)

  3. SET-UP • Make sure you have all you PPE on. • Proper ventilation • Visual Inspection • Connect Ground • Open cylinder fully • Position foot pedal • Sharpen Tungsten

  4. SET-UP CONTINUED • Re-install Tungsten • Check regulator setting • Set the machine for welding mild steel

  5. OPERATION • TIG is often considered the most difficult of all welding processes commonly used in industry. • Welders must maintain a short arc length. • Great care and skill are required to prevent contact between the electrode and the base metal.

  6. OPERATION CONTINUED • It also requires two hands just like OFW • To strike an arc the base metal needs to be approximately 1/8” away. • Move torch in small circles to create the welding puddle.

  7. OPERATION CONTINUED • While maintaining a constant separation you move the torch back slightly and tilt it backwards about 10 -15 degrees. • Add filler rod as needed

  8. PLEASE GET YOU SAFETY GLASSES AND GATHER IN THE SHOP AROUND THE TIG MACHINE

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