Computer Numerical Control (CNC) Programming

9.

Drilling and Hole-Making Operations

9.1.

Canned Cycle Fundamentals

9.1.1.

Purpose and Advantages

9.1.2.

Cycle Parameter Structure

9.1.3.

Initial Plane and R-Plane Concepts

9.1.4.

9.1.4.1.

Initial Plane Return (G98)

9.1.4.2.

R-Plane Return (G99)

9.2.

Basic Drilling Cycles

9.2.1.

High-Speed Drilling Cycle (G81)

9.2.1.1.

Cycle Parameters

9.2.2.

Drilling Cycle with Dwell (G82)

9.2.2.1.

Spot Drilling Applications

9.2.2.2.

Counterboring Operations

9.2.3.

Peck Drilling Cycle (G83)

9.2.3.1.

Deep Hole Drilling

9.2.3.2.

Chip Breaking and Evacuation

9.2.3.3.

Peck Increment Settings

9.3.

Threading Cycles

9.3.1.

Tapping Cycle (G84)

9.3.1.1.

9.3.1.2.

Tension-Compression Tapping

9.3.1.3.

Right-Hand and Left-Hand Threads

9.3.2.

Reverse Tapping Cycle (G74)

9.3.3.

Thread Milling Operations

9.4.

9.4.1.

Boring Cycle (G85)

9.4.2.

Boring with Spindle Stop (G86)

9.4.3.

Boring with Manual Retract (G87)

9.4.4.

Boring with Dwell (G89)

9.5.

Cycle Cancellation and Safety

9.5.1.

Canned Cycle Cancel (G80)

9.5.2.

Safe Cycle Termination

9.5.3.

Error Recovery Procedures

9.6.

Advanced Hole-Making Techniques

9.6.1.

Custom Drilling Cycles

9.6.2.

Multi-Step Hole Operations

9.6.3.

Hole Pattern Programming

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8. Work Coordinate Systems and Offsets

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10. Advanced Programming Techniques