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Gas Metal Arc Welding (GMAW)

An arc welding process which joins metals by heating them with an arc. The arc is between a continuously fed solid filler wire (consumable) electrode and the workpiece. Externally supplied gas or gas mixtures provide shielding for GMAW. Sometimes called MIG welding (Metal Inert Gas) or MAG welding (Metal Active Gas).

 

Gas Nozzle Welding

That part of the GTAW torch that directs the shielding gas flow over the weld area. Made of ceramic, glass, or metal in various styles.

 

Gas Tungsten Arc Welding (GTAW)

Sometimes called TIG welding (Tungsten Inert Gas), it is a welding process which joins metals by heating them with a tungsten electrode which should not become part of the completed weld. Filler metal is sometimes used and argon inert gas or inert gas mixtures are used for shielding. Groove Angle: When

 

Groove Angle Welding

When a groove is made between two materials to be joined together, the groove angle represents the total size of the angle between the two beveled edges

 

Gain

The extent to which a component, circuit, device, or system increases current, voltage, or power. Applicable especially to active devices, such as transistors and integrated circuits (ICs), and to amplifiers and filters that use them. Also used to express the directional properties of some antenna systems. Usually specified in decibels (dB). See AMPLIFICATION, CURRENT AMPLIFICATION, DECIBEL, VOLTAGE AMPLIFICATION, and POWER AMPLIFICATION.

 

GaAs

1. Formula for gallium arsenide. 2. Pertaining to semiconductor devices based on gallium arsenide.

 

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