1. What is a Tube Bend Length Calculator?

Definition: This calculator determines the length of a bent tube section based on the bend angle and radius.

Purpose: It helps fabricators and engineers calculate the developed length of bent tubing for accurate material estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L \) — Bend length (inches)
• \( θ \) — Bend angle (degrees)
• \( R \) — Bend radius (inches)
• \( π \) — Pi (approximately 3.1416)

Explanation: The formula calculates the arc length of the bend by converting the angle from degrees to radians and multiplying by the radius.

3. Importance of Bend Length Calculation

Details: Accurate bend length calculation ensures proper material usage, correct tube positioning, and precise fabrication measurements.

4. Using the Calculator

Tips: Enter the bend angle in degrees and bend radius in inches. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between bend radius and centerline radius?
A: For this calculation, use the centerline radius (measured to the tube's center axis).

Q2: Does this work for any bend angle?
A: Yes, from 1° up to 360° (full circle), though practical bending usually ranges 30°-180°.

Q3: How does tube diameter affect this calculation?
A: Diameter isn't directly used, but affects minimum achievable bend radius.

Q4: Can I use this for pipe bending?
A: Yes, the same formula applies to pipes when using centerline radius.

Q5: How accurate is this calculation?
A: It's mathematically precise for perfect circular arcs, but actual bending may vary slightly.