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Finding quality machining parameters is a complex but necessary process for successful machining projects.

Machining Parameter References

New User Machining Parameters

The new user machining parameters are tuned to lighter machining as new users build trouble-shooting skills.

General Use Machining Parameters

Machining Parameter Calculations



Calculations

Surface Speed to Speed


Chipload to Feed


Tool Parameters

Diameter

  • D [in.]
  • The outside diameter (OD) of the cutting tool.

Number of Flutes

  • N (integer)
  • The number of cutting edges on the tool.

Machining Parameters

Depth of Cut

  • DOC [in.] (< 200% D)
  • Axial depth of tool removing material.

Width of Cut

  • WOC [in.] (5% D < WOC < 95% D)
  • Radial width of tool removing material.

Surface Speed

  • SFM [SFM] (surface feet per minute)
  • Linear speed at the tool cutting edge.

Chipload

  • FPT [in.] (feed per tooth)
  • The distanced advanced by the tool between cutting edges.

Machine Inputs

Speed

  • S [RPM] (revolutions per minute)
  • Rotational speed of the spindle.
Feed
  • F [IPM] (inches per minute)
  • Linear speed that the cutting tool moves during cutting operations.