Tools/TIG/induction: Difference between revisions
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imported>Stever (clarify) |
imported>Stever (→TIG welder induction (TIG Mode) Level 1: expand fault a little) |
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| Weld contaminated || Weld surface is grainy/porous, pool moves erratically || Contaminants that were not removed from the weld area prior to welding have got into the weld and disrupted the chemistry of the pool which messes up fusion into the base material. |
| Weld contaminated || Weld surface is grainy/porous, pool moves erratically || Contaminants that were not removed from the weld area prior to welding have got into the weld and disrupted the chemistry of the pool which messes up fusion into the base material. |
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| Travel too slow || Heat affected zone very large || Slow movement allows excessive heat build-up within the material |
| Travel too slow || Heat affected zone very large, penetration excessive || Slow movement allows excessive heat build-up within the material which causes the weld puddle to sink into the material and "overcooks" the metal giving a poor surface finish |
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| Travel too fast || Gaps/thin spots in bead || Fast movement has pulled the bead forward faster than the welder could melt the material |
| Travel too fast || Gaps/thin spots in bead || Fast movement has pulled the bead forward faster than the welder could melt the material |
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|| Recognising faults and knowing how to fix them |
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| Practising a steady bead || Inductee practices moving the puddle on flat stock till competent (may take a lot of time and re-grinding) || Getting the basics right |
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| Laying a bead using filler || |
| Laying a bead using filler || |
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