Feed Rate
Compute table feed rate fm from feed per tooth f, teeth z and speed n.
Inputs
Formula
fm = f·z·n
Feed affects surface finish and tool life.
Fundamentals
Compute table feed rate fm from feed per tooth f, teeth z and speed n.
This tool computes Feed Rate from the formula: fm = f·z·n
History
Manufacturing evolved with machine tools and CNC; cutting-parameter calculation is central to process planning.
Engineering applications
Used for cutting parameters, tooling and forming process design.
Glossary
| Feed/tooth f | Input parameter |
| Teeth z | Input parameter |
| Speed n | Input parameter |
| Feed rate fm | Output result |
How to use
- Fill in Feed/tooth f, Teeth z, Speed n in the Inputs section (watch the unit on each field).
- Click Calculate; the tool evaluates the formula shown above.
- Read Feed rate fm in the results area.
Formula · Worked Example · Knowledge
Formula
核心计算关系：fm = f·z·n
输入变量：
- Feed/tooth f
f— mm - Teeth z
z - Speed n
n— rpm
输出结果：
- Feed rate fm
fm— mm/min
假设/适用：Cutting params (v, f, a_p) must stay within tool/workpiece recommended windows.
Worked Example
根据公式 fm = f·z·n，取 Feed/tooth f = 0.1 mm；Teeth z = 4；Speed n = 1,000 rpm。
代入计算得：Feed rate fm = 400 mm/min。
Key Points
- Cutting params (v, f, a_p) must stay within tool/workpiece recommended windows.
- MRR scales with feed speed, depth and width; sets required spindle power.
- Feed f = f_z·z·n; match per-tooth feed with spindle speed.
Parameters
Inputs
| Parameter | Symbol | Unit | Default |
|---|---|---|---|
| Feed/tooth f (mm) | f | mm | 0.1 |
| Teeth z | z | 4 | |
| Speed n (rpm) | n | rpm | 1000 |
Outputs
| Result | Symbol | Unit |
|---|---|---|
| Feed rate fm | fm | mm/min |
Applications
- Cutting parameters and speed
- Gear measurement (3-wire/base tangent)
- Blanking and deep-drawing process
FAQ
What formula does this tool use?
This tool computes per ISO / AGMA / ASME standard formulas: fm = f·z·n
How accurate are the results?
Results match input precision, based on SI units and common engineering approximations; for critical duty re-check with a safety factor.
Where is it used?
Cutting parameters and speed