Finish

Finish the part. Choose the largest and most rigid tool that will make all the features. Watch the back clearance of the tool to ensure the tool and holder do not collide with the part.

Figure 8.30: Finish

Rules for Finishing

• Start away from the part face.

• Use a tool, such as a 35 or 55 degree diamond, with sufficient side and end cutting angles to provide tool clearance.

• Use a tool with a nose radius equal, or preferably smaller, than the smaller ID radius in the profile.

• Consider taking a pre-finish pass first so the final pass removes a constant thickness of material.

• Skip over features, such as grooves, that will be machined using other tools and operations.

• For threads, finish at the major diameter of the thread.