1. What is Screw Torque to Axial Force Calculation?

The screw torque to axial force calculation determines the linear force generated along the axis of a screw when torque is applied. This is essential in mechanical engineering for designing and analyzing bolted joints, fasteners, and screw mechanisms.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Axial force (N)
• \( T \) — Applied torque (N·m)
• \( K \) — Torque coefficient (dimensionless)
• \( D \) — Screw diameter (m)

Explanation: The formula calculates the axial force generated in a screw based on the applied torque, considering the torque coefficient and screw diameter.

3. Importance of Axial Force Calculation

Details: Accurate axial force calculation is crucial for ensuring proper clamping force in bolted joints, preventing joint failure, and optimizing mechanical designs for safety and efficiency.

4. Using the Calculator

Tips: Enter torque in N·m, torque coefficient (typically between 0.15-0.25 for standard bolts), and diameter in meters. All values must be positive.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical torque coefficient value?
A: For standard unlubricated bolts, K is typically between 0.15-0.25. Lubricated bolts may have values as low as 0.10.

Q2: Why is diameter important in this calculation?
A: Diameter directly affects the lever arm of the applied torque, influencing how much axial force is generated.

Q3: Can this formula be used for all types of screws?
A: While the basic principle applies to most screw types, specific thread designs and materials may require adjustments to the torque coefficient.

Q4: How accurate is this calculation?
A: The calculation provides a good estimate, but actual results may vary due to factors like friction, lubrication, and thread condition.

Q5: What units should I use for this calculation?
A: Use consistent SI units: torque in N·m, diameter in meters, and the result will be in Newtons (N).