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Tools/TIG/induction: Difference between revisions
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* Machine strikes arc between the work and a non-consumable tungsten electrode, melting a pool of metal
** TIG welding is the most similar welding process to soldering but there's still an important difference. In TIG welding you're melting the base material and allowing it to flow together, not only adding material on top
* Filler wire is added manually while moving the torch forming a weld bead that joins the metals
* Gas shields the weld pool and the tungsten from air exposure
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* Overalls are required for UV protection
* We have special TIG gloves that are much lighter and less stiff than normal welding gloves which can be used because TIG doesn't generate very much radiant heat or spatter. These gloves are made of goatskin or pigskin and are specifically reserved for TIG welding and must not be used for anything else
* Welding masks will protect your face and eyes from the UV light
* Depending on the welding current you may want to use shade 9-12 on the welding helmet. All settings will save your vision, you're just adjusting for best visibility. If you're used to MIG/MMA then go one setting darker than you normally would for this current. Make sure the mask is clean, dirty lenses will make this a lot harder than it needs to be.▼
** Test the visor before use
** Change the cover sheets on them if necessary, report it if we're out of properly fitting replacements
▲** Depending on the welding current you may want to use shade 9-12 on the welding helmet. All settings will save your vision, you're just adjusting for best visibility. If you're used to MIG/MMA then go one setting darker than you normally would for this current
* You may see people online welding without overalls or even without gloves. They can get away with this because of the low-spatter nature of TIG welding. DO NOT DO THIS - They are probably wearing SPF-1000 sunblock and have developed a tolerance over years, they'll still probably wind up getting skin cancer from it! Cover all exposed skin at all times while welding.
|| Using the right PPE for TIG welding
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* Holding the tip of the filler rod near the puddle so that it's shielded, but not so close it melts
* Dipping the tip of the filler rod into the nose of the puddle and quickly back out again
** Contact with the puddle melts the filler rod, not the arc
* The puddle will rise every time you dip the rod so be careful it doesn't touch the electrode
* May be helpful to use stepped movements on the electrode
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