5. Slotting And Hole Machining Operations

In this lesson, you will learn how to perform precise drilling and slotting operations, as well as clean up remaining holes on the part. We will cover how to work with curved slots and external cylindrical holes with high accuracy and tool safety.

You will learn how to:

• use hole machining for preliminary drilling of radius points and external holes, applying the normal vector for precise center positioning;
• set drilling heights (Zmax and Zmin) individually for each group of holes;
• choose the optimal drilling strategy — chip removing (cyclic drilling) for efficient chip evacuation;
• clean slots using 2D contour machining with spiral feed and a cutting depth of 50% of the tool diameter;
• apply operation duplication to save time and reconfigure toolpaths for machining other features;
• manage toolpath compensation and machining direction;
• simulate each operation to verify correctness and safety.

This lesson shows how to combine manual settings and intelligent NC functions for efficient and flexible machining of complex geometries.

In the next video, we will focus on edge finishing and chamfering. See you then!