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3. Angle to Work
The work angle is the forward back angle of the gun relative to the work piece. The correct work angle provides good
bead shape, prevents undercut, uneven penetration, poor gas shield and poor quality finished weld.
4. Stick Out
Stick out is the length of the unmelted wire protruding from the end of the contact tip. A constant even stick out of
5-10mm will produce a stable arc, and an even current flow providing good penetration and even fusion. Too short
stick out will cause an unstable weld pool, produce spatter and over heat the contact tip. Too long stick out will cause
an unstable arc, lack of penetration, lack of fusion and increase spatter.
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