1. What is the Torque to Force Formula?

The torque to force formula calculates the axial force generated by a torque applied to a bolt or fastener. This is essential for determining the clamping force in bolted joints, which affects the integrity and safety of mechanical assemblies.

2. How Does the Calculator Work?

The calculator uses the torque to force formula:

Where:

• \( F \) — Force (N)
• \( T \) — Torque (Nm)
• \( K \) — Torque coefficient (dimensionless)
• \( D \) — Diameter (m)

Explanation: The formula converts applied torque into axial force by accounting for the bolt diameter and friction coefficient.

3. Importance of Force Calculation

Details: Accurate force calculation is crucial for proper bolt tensioning, preventing joint failure, ensuring structural integrity, and maintaining safety standards in mechanical engineering applications.

4. Using the Calculator

Tips: Enter torque in Nm, torque coefficient (typically 0.2 for dry steel), and diameter in meters. All values must be positive and valid.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical torque coefficient value?
A: For dry steel bolts, K is typically around 0.2. For lubricated bolts, it can be as low as 0.15-0.18.

Q2: Why is diameter important in this calculation?
A: Diameter affects the lever arm and thus the mechanical advantage. Larger diameters require more torque to achieve the same force.

Q3: How accurate is this formula?
A: The formula provides a good estimate but actual results may vary due to friction, surface conditions, and bolt material properties.

Q4: Can this be used for metric and imperial units?
A: Yes, but ensure all units are consistent (e.g., Nm for torque and meters for diameter, or lb-ft for torque and feet for diameter).

Q5: What affects the torque coefficient?
A: Surface finish, lubrication, thread pitch, and material properties all influence the torque coefficient value.