Revision as of 01:04, 24 April 2022

Basics

Most modern forms of welding use some form of Shield Gas to protect the Weld Pool from the atmosphere
In the simplest form this is a pure Inert Gas
In some instances, various aspects of the weldment can be modified via using a gas mixture, often with a Reactive Gas
- In the older terminology (Pre-GMAW ), there was Metal Inert Gas (MIG) and Metal Active Gas (MAG)

Shield Gas on the Weld Torch / Welding Gun
Purge Gas (Welding) ( ~pg 628 of Modern Welding )and Secondary Shielding (Welding) and Backing Shielding / Backing Gas ( ~pg 595 of Modern Welding ) (only really needed for Titanium Welding and other odd metals/alloys
Can also be used in essentially a Glove Box but for welding ~pg 282 and 596 in Modern Welding (Called it a Controlled Atmosphere Chamber ?)
This page will not cover gasses used for Weld Heat Treatment which are typically just the same as one would use for an Oxy-Fuel Torch / Air-Fuel Torch

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 *In some instances, various aspects of the weldment can be modified via using a gas mixture, often with a [[Reactive Gas]]
 **In the older terminology (Pre-[[GMAW]] ), there was Metal Inert Gas (MIG) and Metal ''Active'' Gas (MAG)
+=How They are Utilized=
+*Shield Gas on the [[Weld Torch]] / [[Welding Gun]]
+*[[Purge Gas (Welding) ]] ( ~pg 628 of [[Modern Welding]] )and [[Secondary Shielding (Welding) ]] and [[Backing Shielding]] / [[Backing Gas]] ( ~pg 595 of [[Modern Welding]] ) (only really needed for [[Titanium Welding]] and other odd metals/alloys
+*Can also be used in essentially a [[Glove Box]] but for welding ~pg 282 and 596 in [[Modern Welding]] (Called it a [[Controlled Atmosphere Chamber]] ?)
+*'''This page will not cover gasses used for [[Weld Heat Treatment]] which are typically just the same as one would use for an [[Oxy-Fuel Torch]] / [[Air-Fuel Torch]]
 =List=