Electrogas Welding (EGW) - College of Eastern Utah

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EGW

A consumable guide is often used with

short welds (about 4 ft max).

When a consumable guide is used,

none of the equipment (retaining shoes,

wire feed mechanism) moves vertically.

DCEN (reverse polarity) is normally

used. Like SAW, a CV power supply is

normally used, but CC may also be used

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Interesting Facts (cont.) Water-cooled copper retaining shoes are typically used on either side of the joint to hold the molten pool in place. EGW is commonly used for material thicknesses between ½” and 3”. Electrode diameters are typically from 1/16” to 1/8”

EGW A consumable guide is often used with short welds (about 4 ft max). When a consumable guide is used, none of the equipment (retaining shoes, wire feed mechanism) moves vertically. DCEN (reverse polarity) is normally used. Like SAW, a CV power supply is normally used, but CC may also be used

Page 1 and 2: Electrogas Welding (EGW) WELD 1140
Page 3: EGW Interesting Facts Electroslag
Page 7 and 8: EGW Joint designs: see fig. 7.6 an
Page 9 and 10: Angular Distortion & Stress Angula
Page 11: Discontinuities Porosity Ceterlin

Electrogas Welding (EGW) - College of Eastern Utah

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