• | Check
with a magnet to be certain the part is a manganese alloy. ESCO 14 Series manganese
alloys are not magnetic. |
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• | Use
filler materials as specified here. |
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• | Bevel
joints with torch, grinder or arc air equipment to obtain 100% weld penetration. |
| | |
• | Avoid
overheating when gouging. |
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• | Grind
or torch cut work-hardened surfaces at least 1mm/ 1/32" deep before welding. |
| | |
• | Check
with prickpunch to determine if all hardened surface has been completely removed. |
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• | Scarf
out cracks completely before welding. |
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• | Skip
weld. Make beads less than 125 mm/ 5" long. |
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• | Avoid
wide weaving beads in order to distribute heat evenly. |
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• | Weld
with short arc at low current setting "cold arc". You should be able
to touch the part 150 mm/ 6" away. |
| | |
• | Peen
each bead immediately to reduce contraction stress. |
| | |
• | Rebuild
worn areas to original contour with austenitic manganese nickel electrodes to
closely match the base material and allow work hardening. |
