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Feed Rate Formula:
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Feed Rate is the speed at which the cutting tool advances against the workpiece material. It is a critical parameter in machining operations that determines the quality of the cut, tool life, and overall machining efficiency.
The calculator uses the feed rate formula:
Where:
Explanation: The formula calculates the linear feed rate by multiplying the spindle speed by the feed per tooth and the number of teeth on the cutter.
Details: Proper feed rate calculation is essential for achieving optimal machining results, including surface finish quality, dimensional accuracy, and maximizing tool life while minimizing production time.
Tips: Enter spindle speed in RPM, feed per tooth in mm/tooth, and number of teeth. All values must be positive numbers greater than zero for accurate calculation.
Q1: What units are used for feed rate calculation?
A: Feed rate is typically measured in mm/min or inches per minute, depending on the measurement system used.
Q2: How does feed rate affect machining?
A: Too high feed rate can cause tool breakage and poor surface finish, while too low feed rate reduces productivity and may cause tool rubbing instead of cutting.
Q3: What is chip load?
A: Chip load is another term for feed per tooth, representing the thickness of material removed by each cutting edge during rotation.
Q4: How does material hardness affect feed rate?
A: Harder materials generally require lower feed rates to prevent excessive tool wear and breakage, while softer materials can tolerate higher feed rates.
Q5: Can this formula be used for all cutting tools?
A: While the basic formula applies to most milling operations, specific tool geometries and materials may require adjustments based on manufacturer recommendations.