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The Cutting Force Calculator helps determine the force required for machining processes, such as turning, milling, drilling, and cutting metals or other materials. Cutting force plays a crucial role in tool selection, machine performance, and material efficiency, ensuring optimal cutting conditions and minimizing tool wear.
This calculator is widely used in manufacturing, mechanical engineering, and machining industries to estimate the force required for material removal in metalworking or other machining operations.
Formula of Cutting Force Calculator
A commonly used formula for calculating cutting force in turning operations is:

Where:
- F_c = Cutting force (in Newtons, N).
- K_c = Specific cutting force (in N/mm²), which depends on the material being cut.
- A = Cutting area (in mm²), calculated as:
A = Depth of Cut × Width of Cut. - f = Feed rate (in mm/rev), which is the distance the tool moves per revolution of the workpiece.
This formula ensures accurate force estimation for different cutting conditions and materials, helping in tool life optimization and machining efficiency.
General Cutting Force Reference Table
The table below provides approximate specific cutting force (K_c) values for different materials.
Material | Specific Cutting Force (K_c) (N/mm²) |
---|---|
Aluminum | 600 |
Mild Steel | 1,800 |
Stainless Steel | 2,200 |
Titanium | 3,000 |
Cast Iron | 1,500 |
This table helps quickly estimate cutting force requirements based on material type.
Example of Cutting Force Calculator
A machining operation involves:
- Material: Mild Steel (K_c = 1,800 N/mm²)
- Depth of Cut: 2 mm
- Width of Cut: 5 mm
- Feed Rate: 0.1 mm/rev
Using the formula:
A = 2 × 5
A = 10 mm²
F_c = 1,800 × 10 × 0.1
F_c = 1,800 N
This means the required cutting force is 1,800 Newtons.
Most Common FAQs
Cutting force affects tool life, machine stability, and material removal efficiency. Estimating force helps prevent tool damage and optimize machining operations.
To reduce cutting force, lower the depth of cut, reduce feed rate, use sharper tools, and select appropriate cutting speeds.
Yes, cutting force depends on material type, tool geometry, feed rate, depth of cut, and machine conditions.