(704) 849-9209 tcsales@salemtools.com

Step one is important, once I realized it wasn’t posted, I got it posted right away.

  • Why is material prep important with thread rolling?
  • Thread rolling is a cold forming process and the material goes through a state change. With Axial rolling tools this change normally occurs in the first 2 pitches.
  • Material is prepped at the mean of the Pitch based on the class of thread.
  • The state change occurs by compressing the material down to the Minor dia then it flows up the roll form and creates the Major.
  • The chamfer must start a least .010” below the Min. Minor
  • Improper prep results in too much material and risks breaking the rolls