Home
Back
Feed Rate Formula:
| From: | To: |
The Feed Rate formula calculates the speed at which the cutter moves through the material during milling operations. It's a critical parameter in machining that affects surface finish, tool life, and machining efficiency.
The calculator uses the Feed Rate formula:
Where:
Explanation: The formula calculates how fast the cutter should advance through the material based on the tool's rotation speed, chip load per tooth, and number of cutting edges.
Details: Proper feed rate calculation is essential for optimizing machining processes, ensuring tool longevity, achieving desired surface finishes, and preventing tool breakage or workpiece damage.
Tips: Enter the spindle RPM, chip load per tooth (typically provided by tool manufacturers), and number of flutes on the cutting tool. All values must be positive numbers.
Q1: What is chip load and how is it determined?
A: Chip load is the thickness of material removed by each cutting edge. It's typically recommended by tool manufacturers based on material, tool type, and cutting conditions.
Q2: How does feed rate affect machining?
A: Too low feed rate can cause rubbing and premature tool wear. Too high feed rate can cause tool breakage, poor surface finish, or machine overload.
Q3: What are typical chip load values?
A: Chip load values vary widely (0.001-0.030 in/tooth) based on material, tool diameter, and tool material. Always consult manufacturer recommendations.
Q4: Should I use the calculated feed rate directly?
A: The calculated value is a starting point. Actual feed rates should be adjusted based on machine capability, tool condition, and specific machining conditions.
Q5: How does material hardness affect feed rate?
A: Harder materials typically require lower feed rates to prevent excessive tool wear and breakage, while softer materials can handle higher feed rates.