1. What is Machining And Operating Rate?

Machining And Operating Rate is the money charged for processing on and operating machines per unit time, including overheads for minimum production cost. It helps in determining the economic efficiency of machining operations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Cost of A Tool — Cost of one tool being used for machining
• Cost of Changing Each Tool — Cost arising from tool change time
• Reference Tool Life — Tool Life obtained in reference machining condition (seconds)
• Taylor's Tool Life Exponent For Hard Material — Parameter describing cutting speed and tool life relationship
• Reference Cutting Velocity — Cutting Velocity in reference condition (m/s)
• Cutting Velocity — Tangential velocity at periphery (m/s)
• Time to Change One Tool — Time taken to change one tool (seconds)

3. Importance of Machining And Operating Rate Calculation

Details: Accurate calculation of machining and operating rate is crucial for cost estimation, production planning, and determining the economic viability of machining operations. It helps in optimizing tool usage and minimizing production costs.

4. Using the Calculator

Tips: Enter all values in appropriate units. Ensure Taylor's Tool Life Exponent is greater than 1. All time values should be positive, and cutting velocities should be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the significance of Taylor's Tool Life Exponent?
A: Taylor's Tool Life Exponent describes the relationship between cutting speed and tool life. A higher value indicates that tool life is more sensitive to changes in cutting speed.

Q2: How does tool changing cost affect the machining rate?
A: Higher tool changing costs increase the overall machining and operating rate, as they contribute to the numerator of the calculation.

Q3: Why is reference tool life important in this calculation?
A: Reference tool life provides a baseline for comparison and helps in scaling the calculation based on actual machining conditions.

Q4: What units should be used for time values?
A: Time values should be entered in seconds for consistency in the calculation.

Q5: Can this calculator be used for different materials?
A: Yes, but the Taylor's Tool Life Exponent value should be appropriate for the specific material being machined.