Sheet Metal K-Factor & Bend Calculator
Calculate bend allowance, deduction, setback, and flat blank length based on DIN 6935 standards. Visualize the shifting neutral axis dynamically in real-time.
Presets & Bending Templates
Bending Parameters
Adjust sliders or input exact values to update calculations instantly.
Bending Profile Visualizer
Calculated Results
Formula: F1 + F2 - BD (Legs - Bend Deduction)
Bending Engineering Reference
1. Core Bending Equations
Bend Allowance (BA) measures the length of the neutral axis within the bend area. It represents the material added:BA = (Angle_Rad) * (R + K * T)
Outside Setback (OS) is the distance from the tangent point of the bend to the apex of the mold corner:OS = tan(Angle / 2) * (R + T)
Bend Deduction (BD) is the difference between outside lengths and flat pattern length, subtracting excess material:BD = 2 * OS - BA
2. Real-Time Math Log
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