Term
| What are some possible causes of porosity? (3) |
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Definition
1. Long arc length.
2. Dirty base metal.
3. Inadequate gas coverage. |
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Term
| What are some possible cures for porosity? (3) |
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Definition
1. Use proper arc length.
2. Clean base metal.
3. Check proper gas coverage. |
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Term
| What are some possible causes of undercut? (1) |
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Definition
| Improper welding technique. |
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Term
| What are some possible cures for undercut? (3) |
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Definition
1. Reduce arc length.
2. Reduce travel speed.
3. Use proper electrode angle. |
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Term
| What are some possible causes of incomplete fusion? (3) |
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Definition
1. Cold welding procedures.
2. Travel speed too slow.
3. Travel speed too fast. |
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Term
| What are some possible cures for incomplete fusion? (2) |
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Definition
1. Increase current.
2. Use proper travel speed. |
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Term
| What are some possible causes of excessive reinforcement? (2) |
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Definition
1. Travel speed too slow.
2. Cold welding procedures. |
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Term
| What are some possible cures for excessive reinforcement? (2) |
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Definition
1. Increase travel speed.
2. Increase current. |
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Term
| What are some possible causes of under-fill? (1) |
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Definition
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Term
| What are some possible cures for under-fill? (1) |
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Definition
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Term
| What are some possible causes of concave root surface (suck-back)? (3) |
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Definition
1. Too much current.
2. Arc length too long.
3. Root face too small. |
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Term
| What are some possible cures for concave root surface (suck-back)? (3) |
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Definition
1. Reduce current.
2.Maintain proper arc length.
3. Use proper joint fit-up. |
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Term
| What are some possible causes of non-uniformity? (1) |
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Definition
| Improper welding technique. |
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Term
| What are some possible cures for non-uniformity? (1) |
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Definition
| Maintain constant travel speed. |
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Term
| What are some possible causes of improper leg size? (1) |
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Definition
| Improper electrode angle. |
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Term
| What are some possible cures for improper leg size? (1) |
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Definition
| Use correct welding technique. |
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Term
| What are some possible causes of overlap? (1) |
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Definition
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Term
| What are some possible cures for overlap? (1) |
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Definition
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Term
| What are some possible causes of arc strikes? (1) |
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Definition
| Improper welding technique. |
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Term
| What are some possible cures for arc strikes? (1) |
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Definition
| Initiate arc inside the weld joint. |
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Term
| What are some possible causes of slag inclusions? (1) |
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Definition
| Improper welding technique. |
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Term
| What are some possible cures for slag inclusions? (2) |
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Definition
1. Use correct welding technique.
2. Clean weld between passes. |
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