Fillet Leg Length Formula:
Definition: This calculator estimates the length of fillet leg in T-joints based on transverse shrinkage and plate thickness.
Purpose: It helps welding professionals determine proper fillet dimensions to account for shrinkage effects in T-joint configurations.
The calculator uses the formula:
Where:
Explanation: The transverse shrinkage multiplied by plate thickness gives the base value, which is then divided by the empirical factor 1.02.
Details: Proper fillet leg length ensures joint strength, compensates for shrinkage effects, and maintains dimensional accuracy in welded structures.
Tips: Enter transverse shrinkage (typically 0.001-0.010m) and plate thickness. Both values must be > 0. Results account for ±5% variation.
Q1: Why is there a ±5% variation?
A: The 5% accounts for material inconsistencies, measurement tolerances, and welding process variations.
Q2: What's a typical transverse shrinkage value?
A: For carbon steel, transverse shrinkage typically ranges from 0.1% to 1% of joint length (0.001-0.010m per meter).
Q3: When would I need to adjust the calculation?
A: For different materials (aluminum, stainless steel) or special joint preparations, consult welding engineering references.
Q4: How does plate thickness affect the result?
A: Thicker plates generally require proportionally longer fillet legs to accommodate greater shrinkage forces.
Q5: Does this include safety factors?
A: No, the calculation provides theoretical values. Apply appropriate safety factors based on application requirements.