If the contact tip-to-work distance (CTWD) is not maintained properly, the weld is likely to have which issue?

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Study for the GMAW Welding Level 2 Test. Master GMAW welding techniques with multiple choice questions and detailed explanations. Prepare confidently for your exam!

Multiple Choice

If the contact tip-to-work distance (CTWD) is not maintained properly, the weld is likely to have which issue?

The main idea here is how the distance from the contact tip to the workpiece (CTWD) affects the shielding gas protection and arc stability in MIG welding. When CTWD isn’t kept consistent, the shielding gas may not blanket the molten weld properly, allowing air and moisture to contaminate the pool. That contamination shows up as porosity in the solidified weld, and an unstable or poorly heated arc can also lead to incomplete bonding or poor fusion. So porosity or poor fusion is the most likely defect when CTWD isn’t maintained.

If the contact tip-to-work distance (CTWD) is not maintained properly, the weld is likely to have which issue?

Study for the GMAW Welding Level 2 Test. Master GMAW welding techniques with multiple choice questions and detailed explanations. Prepare confidently for your exam!

If the contact tip-to-work distance (CTWD) is not maintained properly, the weld is likely to have which issue?

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