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Screw Tension Formula:
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The Screw Tension Formula calculates the tension force in a screw from the applied torque, using the coefficient of friction and screw diameter. It is essential for determining the clamping force in bolted joints and mechanical assemblies.
The calculator uses the Screw Tension Formula:
Where:
Explanation: The formula relates the torque applied to a screw to the resulting tension force, accounting for the screw's diameter and the coefficient that incorporates friction and thread geometry.
Details: Accurate tension calculation is crucial for ensuring proper clamping force in mechanical assemblies, preventing joint failure, and maintaining structural integrity in various engineering applications.
Tips: Enter torque in Nm, coefficient (typically 0.2 for standard conditions), and diameter in meters. All values must be positive numbers.
Q1: What is the typical value for coefficient K?
A: For standard conditions, K is typically around 0.2, but it can vary based on thread type, lubrication, and material properties.
Q2: Why is screw tension important?
A: Proper screw tension ensures adequate clamping force, prevents loosening under vibration, and maintains joint integrity in mechanical assemblies.
Q3: How does diameter affect tension?
A: Larger diameter screws require more torque to achieve the same tension force, as tension is inversely proportional to diameter.
Q4: Can this formula be used for all screw types?
A: While the basic principle applies to most screw types, specific thread designs and materials may require adjustments to the coefficient value.
Q5: What units should be used for accurate results?
A: Consistent SI units (Nm for torque, m for diameter) should be used to ensure accurate tension results in Newtons.