Welding 10, 20, A30, B30
WLDG25D
Module 25D: GMAW Safety and Equipment (Core)
Outcome
Develop the effective use of GMAW equipment through an understanding of the science of welding.
Indicators
| (a) | Justify the relationship between wire speed and amperage, as well as between welding voltage and arc length. |
| (b) | Investigate the effects of backhand (pull) welding and forehand (push) welding. |
| (c) | Analyze the effects of torch angle on weld penetration and weld appearance. |
| (d) | Identify the probable causes of the following defects: surface porosity, sub-surface porosity, lack of fusion, burn through, and lack of penetration. |
| (e) | Identify strategies to evaluate and improve weld quality. |
| (f) | Identify metals and perform preparation and assembly tasks prior to welding. |
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