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Resources

Chipping

Incorrect Tap Selection

  • Reduce cutting angle.
  • Use different kind of high-speed steel tap.
  • Reduce hardness of the tap.
  • Increase chamfer length.
  • Avoid chip packing in the flutes or in the bottom of the hole by using spiral fluted or spiral pointed taps.

Operating Conditions

  • Reduce tapping speed.
  • Avoid misalignment between tap and hole.
  • Avoid sudden return of reverse in blind hole tapping.
  • Avoid galling.
  • Use large hole size.

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Resources