Traverse Speed for Cylindrical and Internal Grinder given MRR Calculator

Traverse Speed Formula:

\[ U_{trav} = \frac{Z_w}{\pi \times f \times D_m} \]

Metal Removal Rate (MRR):

m³/s

Feed Rate:

m/rev

Diameter of Machined Surface:

Tolerance:

Traverse Speed (m/s):

Acceptable Range (m/s):

1. What is Traverse Speed in Cylindrical Grinding?

Definition: Traverse Speed in Cylindrical Grinding refers to the reciprocating back-and-forth motion of the worktable that holds the workpiece. It's crucial for achieving desired shape and finish during grinding.

Purpose: This calculator helps determine the optimal traverse speed based on metal removal rate, feed rate, and workpiece diameter.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ U_{trav} = \frac{Z_w}{\pi \times f \times D_m} \]

Where:

\( U_{trav} \) — Traverse speed (m/s)
\( Z_w \) — Metal removal rate (m³/s)
\( f \) — Feed rate (m/rev)
\( D_m \) — Diameter of machined surface (m)

Explanation: The formula calculates the required traverse speed to achieve the specified metal removal rate given the feed rate and workpiece diameter.

3. Importance of Traverse Speed Calculation

Details: Proper traverse speed ensures efficient material removal, good surface finish, and prevents wheel wear or workpiece damage.

4. Using the Calculator

Tips: Enter the metal removal rate in m³/s, feed rate in m/rev, workpiece diameter in meters, and tolerance percentage. All values must be > 0 except tolerance which can be negative or positive.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical metal removal rate for grinding?
A: MRR varies by material and operation but typically ranges from 0.0001 to 0.01 m³/s for precision grinding.

Q2: How does feed rate affect traverse speed?
A: Higher feed rates generally require slower traverse speeds to maintain the same MRR and surface finish.

Q3: Why include a tolerance percentage?
A: The tolerance accounts for practical variations in grinding conditions and helps establish an acceptable operating range.

Q4: What happens if traverse speed is too high?
A: Excessive speed may cause poor surface finish, wheel wear, or vibration issues.

Q5: How does workpiece diameter affect the calculation?
A: Larger diameters require slower traverse speeds to maintain the same MRR at a given feed rate.