Feed Rate For Turning Operation Given Machining Time Calculator

Formula Used:

\[ \text{Feed Rate} = \frac{\text{Length of Cut}}{\text{Turning Time} \times \text{Angular Velocity of Job or Workpiece}} \] \[ f_r = \frac{L_{cut}}{t_m \times \omega} \]

Feed Rate (f_r):

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1. What is Feed Rate For Turning Operation Given Machining Time?

Feed Rate For Turning Operation Given Machining Time is defined as the tool's distance travelled towards the workpiece during one spindle revolution in a turning operation, calculated based on the length of cut, turning time, and angular velocity of the workpiece.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ f_r = \frac{L_{cut}}{t_m \times \omega} \]

Where:

\( f_r \) — Feed Rate (m/rev)
\( L_{cut} \) — Length of Cut (m)
\( t_m \) — Turning Time (s)
\( \omega \) — Angular Velocity of Job or Workpiece (rad/s)

Explanation: The formula calculates the feed rate by dividing the length of cut by the product of turning time and angular velocity of the workpiece.

3. Importance of Feed Rate Calculation

Details: Accurate feed rate calculation is crucial for optimizing machining processes, ensuring proper surface finish, maintaining tool life, and achieving desired production rates in turning operations.

4. Using the Calculator

Tips: Enter length of cut in meters, turning time in seconds, and angular velocity in radians per second. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is feed rate important in turning operations?
A: Feed rate directly affects surface finish, tool life, machining time, and overall efficiency of the turning process.

Q2: What are typical feed rate values for turning operations?
A: Feed rates typically range from 0.05 to 0.5 mm/rev for roughing operations and 0.02 to 0.2 mm/rev for finishing operations, depending on material and tooling.

Q3: How does feed rate affect surface finish?
A: Lower feed rates generally produce better surface finishes, while higher feed rates may cause tool chatter and poorer surface quality.

Q4: What factors influence the optimal feed rate selection?
A: Material properties, tool geometry, cutting depth, machine tool capability, and desired surface finish all influence optimal feed rate selection.

Q5: Can this formula be used for other machining operations?
A: While the basic principle applies, specific feed rate calculations may vary for different machining operations such as milling, drilling, or grinding.