Electrogas Welding (EGW) - College of Eastern Utah

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Discontinuities

Porosity

Ceterline Cracking

Incomplete fusion at the sides

Overlap

Underfill

Melt Through

Hot Cracking

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EGW variables Voltage: typically 30 to 35 volts Amperage: 300 to 1000 amps depending on the wire size. Electrode Extension: Gas shielded - usually about 1.5” Self shielded (flux core) – 2” to 3” Oscillation can be used

Discontinuities Porosity Ceterline Cracking Incomplete fusion at the sides Overlap Underfill Melt Through Hot Cracking

Page 1 and 2: Electrogas Welding (EGW) WELD 1140
Page 3 and 4: EGW Interesting Facts Electroslag
Page 5 and 6: EGW A consumable guide is often us
Page 7 and 8: EGW Joint designs: see fig. 7.6 an
Page 9: Angular Distortion & Stress Angula

Electrogas Welding (EGW) - College of Eastern Utah

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