Drilling Peck Depth Calculator
Based on the search results and common machining practices, here's a comprehensive table summarizing key information about drilling peck depths:
| Aspect | Guidelines |
|---|---|
| Definition of Deep Hole | Generally considered 3-5 times the drill diameter1 |
| Standard Drill Peck Depth | 1.5-2 times the drill diameter7 |
| Peck Depth for Regular Drills | - Up to 3x diameter: No peck required - 3x-10x diameter: 1x diameter peck - Over 10x diameter: 0.75x diameter peck - Over 15x diameter: 0.5x diameter peck2 |
| Peck Depth for Parabolic Drills | - Up to 5x diameter: No peck required - 5x-10x diameter: 2x diameter peck - Over 10x diameter: 1.5x diameter peck2 |
| Material-Specific Guidelines | - Aluminum: Can use larger pecks (e.g., 1x diameter)7 - Steel: Standard peck depths apply - Stainless Steel: May benefit less from pecking; use through-coolant when possible4 |
| G83 Cycle Parameters | - Q: Peck depth - R: Retract plane - Z: Final depth - I: Initial peck depth (if available) - J: Peck reduction amount (if available) - K: Minimum peck depth (if available)5 |
| Rule of Thumb | Peck depth = 30% of drill diameter6 |
| Coolant Considerations | - Through-coolant drills allow deeper pecks - Ensure adequate pressure for depth-to-diameter ratio3 |
| Factors Affecting Peck Depth | - Drill diameter and geometry - Material machinability - Hole depth - Feeds and speeds - Coolant delivery method5 |
| Deep Hole Considerations | - Reduce speed and feed for depths beyond 5x diameter - Use G83 multi-peck cycle for depths beyond 5x diameter1 |
Remember that these are general guidelines. Specific applications may require adjustments based on the exact material, tooling, and machining conditions. Always consult your tool manufacturer's recommendations and perform test cuts when working with new materials or tooling.