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Excelloy 61S AC/DC + :

Stud removal

The ultimate “problem solver” for removing broken studs, taps, or drills regardless of alloy composition.


Stud Removal Procedure

  • Use 3/32” diameter Excelloy 61S for holes 3/8” and smaller and 1/8” diameter for holes larger than 3/8”
  • Strike Excelloy 61S directly in the center of the broken stud, drill, or tap. Do not strike the edge or the side of the hole.
  • Once the arc is initiated maintain a tight arc in the center of the weld pool.
  • Keep welding in the center of the hole until you reach the top. Do not allow the weld deposit to fuse to the edge or side of the hole.
  • Continue welding until you have created a weld nugget protruding above the surface of the hole.
  • Chip away the slag and place a nut over the weld nugget.
  • Weld the nugget to the nut.
  • Now simply take a wrench and remove the broken stud, drill, or tap.

  

Technical Data

Tensile strength..........................Up to 128,00 PSI
Work hardness............................Up to 190,000 PSI
Yield strength..............................Up to 90,000 PSI
Elongation...................................Up to 30%


Recommended Amperage Settings

1/8”
25-50 Amps

5/64”
35-60 Amps

3/32”
45-65 Amps

1/8”
70-120 Amps

5/32”
90-150 Amps

3/16”
150-240 Amps