The Depth Per Pass Calculator helps machinists, engineers, and manufacturers determine the optimal depth per pass when cutting or machining materials. This tool ensures efficiency, precision, and safety while optimizing tool life. By inputting the total cutting depth, the number of passes, initial depth, and final depth, users can accurately calculate the depth per pass required for a machining operation.
Formula
The depth per pass is calculated using the following formula:
where:
- Total Cutting Depth is the total depth required to be machined or cut.
- Number of Passes is the total number of cutting steps required to reach the final depth.
- Final Depth is the target depth after machining.
- Initial Depth is the starting depth before machining.
This formula helps machinists optimize cutting operations to balance precision and efficiency.
Depth Per Pass Reference Table
This table provides estimated depth per pass values for different materials and machining conditions to help users make informed decisions.
| Material | Tool Diameter (mm) | Total Cutting Depth (mm) | Number of Passes | Depth Per Pass (mm) |
|---|---|---|---|---|
| Aluminum | 10 | 10 | 5 | 2 |
| Steel | 12 | 20 | 8 | 2.5 |
| Brass | 8 | 8 | 4 | 2 |
| Stainless Steel | 15 | 30 | 10 | 3 |
| Titanium | 10 | 15 | 6 | 2.5 |
These values provide a guideline for setting machining parameters based on material properties.
Example of Depth Per Pass Calculator
A machinist needs to cut a 20 mm deep groove in a steel workpiece, using a tool with an initial depth of 0 mm and planning to complete the cut in 8 passes.
Using the formula:
Depth Per Pass = (20 - 0) / 8
= 20 / 8
= 2.5 mm per pass
This means that for each machining pass, the tool should remove 2.5 mm of material to reach the final depth efficiently and safely.
Most Common FAQs
Depth per pass affects cutting efficiency, tool life, and surface finish. A proper depth ensures a balance between speed and accuracy while reducing tool wear.
Harder materials require smaller depth per pass values to prevent excessive tool wear and ensure precision. Softer materials allow for deeper passes without damaging the cutting tool.
Yes, depth per pass varies based on machining techniques like milling, turning, or drilling. It should be optimized according to tool type, material properties, and desired surface finish.