Gage

See Gauge definition 1.

Galvanic Corrosion

Dissimilar metals in contact with each other in presence of moisture, acting as a battery and causing an electrolytic etching deteriorating effect.

Ganged

See Nesting.

Gas Metal Arc Welding GMAW

See MIG Weld.

Gas Tungsten Arc Welding GTAW

See TIG Weld.

Gas Welding

Melting and fusing metals together by use of an oxygen and flammable gas mixture.

Gauge

1 Instrument for measuring, testing, or registering. 2 Numeric scale for metal thickness.

Gaylord

See Master Carton.

Gloss

Subjective term used to describe the relative amount and nature of mirror-like specular reflection.

Glossmeter

Instrument for measuring the degree of gloss in relative terms. Such instruments measure the light reflected at a selected specular angle.

Go/No-Go Gauge

Measuring device with two registration elements which determine if a feature to be measured is between two established limits.

Gouge

Surface imperfection, deeper than a scratch, often with raised edges.

Grain Direction

1 Crystaline orientation of material in the direction of mill rolling. 2 Orientation of a surface finish generated by abrasive method.

Grinding

Process of removing material by abrasion.

Grippers

Material clamping devices often serrated for additional holding force to restrain material during a die operation.

Grit

Mineral particles used for abrasive metal removal.