provide concise tables for minimum bending radii and opening angle formulas based on the standard. Modulus Metal Summary Table: Key Parameters Definition / Significance Material Thickness Decreases by ~20% in the bent area. Inside Radius Chosen from preferred series to ensure part integrity. Opening Angle Used to determine the compensation value Bending Angle The angle through which the material is bent ( 0 raised to the composed with power 180 raised to the composed with power Minimum Leg Length Recommended as approximately to avoid defects. calculation example for a 90-degree bend using these DIN 6935 parameters? DIN 6935 Cold Bending of Flat Rolled Steel - Modulus Metal
The standard also outlines how much a bend can deviate from the intended radius depending on the steel grade: Steel Grade Thickness up to 3mm Thickness 3mm to 8mm S235 (JR/JO/J2) S275 (JR/JO/J2) S355 (JR/JO/J2) Where to Access the Standard While the full official document must be purchased from Din 6935 Standard Pdf
One of the biggest challenges in bending is that the "neutral fiber" (the layer of metal that neither stretches nor compresses) shifts during the process. provide concise tables for minimum bending radii and
