SECTION 7 − OPERATION - STUD GUN
7-1. Stud Gun Tool Functions
Y Disconnect gun from power source before installing or removing compo- nents.
The stud gun automates the stud welding process.
Several key functions are:
• Holds the ferrule, spark shield or gas de- livery system
• Holds the stud
• Strikes the arc
• Establishes the arc length (lift distance)
• Thru the power source, the gun controls the arc time
• Controls rate of plunge of the stud into the base metal
7-2. Stud Welding Procedures
. Before welding it is important to review the set up. Correct set up will produce the best welding results. Approximately 95% of all stud welding problems are due to improper gun set up or power set-
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| tings. |
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| Welding Procedures: |
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| • Place stud to be welded into weld chuck. |
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| • Insert a ferrule into the ferrule grip (this |
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| step is not necessary if using a spark shield) |
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| • Position end of stud in location to be |
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| welded. |
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| • Press gun downward so the ferrule is sit- |
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| ting on the base metal. |
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| • Pull trigger to begin weld sequence. |
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| • Hold gun still during the arcing process. |
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| • After weld is complete, continue to hold |
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| the gun still for 1 second to allow the molten |
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| metal to solidify. |
| Ferrule | • Remove the gun from the welded stud. |
| Be sure and pull the gun straight off of the | |
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| welded stud to prevent damage to the weld |
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| chuck. |
Position tool | Press tool towards | • Break away the ferrule and inspect the |
against work | work until ferrule | weld. (Only applies if ferrule was used) |
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| is against work |
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