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Ch9 Welding 1-20

QuestionAnswer
Welding filter lens A shaded glass welding insert for protecting your eyes from ultraviolet burns.
Weld A weld is formed when separate pieces of material are fused together through the application of heat.
Base Material is the material to be welded, usually metal or plastic. Both can be welded in the collision repair industry.
Filler material from a wire or rod is added to the weld joint. The filler material makes the weld joint thicker and stronger.
Weld root is the part of the joint where the wire electrode is directed
Weld face is the exposed surface of the weld on the side where you welded
Weld penetration is indicated by the height of the exposed surface of the weld on the back side.
Burn mark on the back of a weld is an indication of good weld penetration.
Burn through results from penetrating too much in the lower base metal, which burns a hole through the back side of the metal.
Weld legs are the width and height of the weld bead.
Weld throat refers to the deaths of the triangular cross section of the weld.
Joint fit up refers to holding workpieces tightly together, in alignment, to prepare for welding.
Fusion welding is the joining of two different pieces of metal together by melting and fusing them into each other.
MIG welding is a wire feed fusion welding process commonly used in collision repair.
GMAW gas metal arc welding.
MIG shielding gas protects the weld area from oxygen, nitrogen and hydrogen.
Active gas which combines with the weld to contribute to weld quality.
Inert gas which protects the weld but does NOT combine with the weld.
Heat setting or voltage determines the length of the arc.
Travel speed is how fast you move the welding gun across the joint.
Created by: abogner105
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