Tools/TIG/induction: Difference between revisions

imported>Stever
imported>Stever
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*** 4T - Press and release to start, press and release to stop, good for long welds but has more parameters to set and harder to use, not covered in level-1
* Parameters set using the middle section. We're using DC (Electrode negative), no pulse, HF-TIG in 2T mode. Back and Forward controls step through the parameters that are relevant to the selected mode
** Using the chart on top of the welder to pick settings
** If the chart isn't helping then use the following guidelines. Use all the %age changes that apply to your work, e.g. if you're doing an inside corner on aluminium then apply both +%20 for aluminium and +10% for inside corner for a total of +30%
{| class="wikitable"
|-
! Basic Current !! 35A/mm of material thickness
|-
| Inside corner || +10% current, -20% Gas flow
|-
| Outside Corner || -10% current, +25% Gas flow
|-
| Aluminium || +20% Current
|-
| Brass/Copper || +30% Current
|-
| Stainless Steel || -10% Current
|}
** Preflow - Time in seconds, is used to establish coverage of shield gas before the arc is ignited. How much to use will depend a little on what you're doing but 0.5-1.0 seconds is usually reasonable for steel
** Hot Start - This is an extra very short pulse of current used to help establish the arc, this is IN ADDITION to the base current, so you don't need very much, 5A-20A is normal
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