Fig. 1 - Arc stud location template Bushing design
 

Template - Bushing Method

• This method of templating is recommended for use with all arc stud styles.

• The design makes it possible to accurately hold angular alignment of the studs as well as stud location. 

• The template should be made of bakelite of a thickness sufficient to afford good alignment. 

• Spacers are required to allow the gases to escape during the welding cycle.

• Template bushings may be used to insure greater accuracy and extend the life of the template. 

• Standard ferrule grips are used with the tube adapter. This permits standardization of templates since it is only necessary to change the ferrule grip to weld studs of different diameters.

• The hole diameter of the bushing or template should be approximately 0.2 - 0.3 mm larger than the maximum outside diameter of the template tube adapter.