How to set the bending coefficient of SolidWorks sheet metal base flange?
Sheet metal bending and extension, the material side will be elongated, one side is compressed, the factors affected are: material type, material thickness, materials, heat treatment and processing of the situation and bending angle. PROE will automatically calculate the length of the material being stretched or compressed during the bending and extension of the sheet metal.
The formula is as follows:L=0.5 pi * (R+K coefficient X T) * (theta /90)L: sheet metal unfolding length (Developed, length)R: inner radius at bend (Inner, radius)T: material thicknessBend angleY coefficient: a constant determined by the position of the Neurtal bend line, whose default value is 0.5 (the so-called "bend midline"). You can set its default value in config initial_bend_factorIn sheet metal design practice, the commonly used sheet metal flattening calculation formula is based on the K coefficient, the range is 0~1, which indicates the resistance of the material to be stretched when bending. The relationship with the Y coefficients followsY coefficient = (PI /2) * K coefficient
The sheet metal we use everyday is actually a lower plate.That is to say, if you want to expand automatically, you can record these places.Bend radius 0.01Bending coefficient 0.52When you bend more, choose the gap 0.2Lapped bending, select shear side bending.Release slot type select tear.After setting up the above parameters, you can use them directly.This expansion dimension is the actual processing size of the lower plate.
