Sheet Metal - Ways to automatize Bend Radius Value

[Secttor]

Hy. I have a large number of parts that are set with a "2mm" Bend Radius.

1. I wish to change it to "1.5mm" but manually takes time 😐 . Ways to automatize this?

2. What Bend Radius is recommended to be used for steel sheets (1.5 ; 2; 4; 5 mm).

Thanks!

[blair]

Possibly with iLogic, but since there is no real designation on the Parameter as to if it's a Bend Radius or a distance it might be tough to filter for. General rule of thumb is inside bend radius equals material thickness as the minimum. After that it comes down to the designer and function and appearance.

[Secttor]

I'm pretty worried about that equality because the final assembly has pretty critical tolerances (minimum 13mm and max..15 - see picture).

The golden part has 1.5mm thickness and the base (grey) has 2mm...

[jletcher]

If you put it in your styles and save the style when you open the parts you just have to update styles and all will change.

[blair]

Not sure what your concern/problem is. Bend Radius is always measured on the ID. So a 2mm plate with a 2mm ID Bend Radius will have a OD radius of 4mm. This OD won't bind on the ID of the next part.

[chad38]

Bend radius equaling the material thickness is a very good rule of thumb, especially if you want to use a straight k-factor. Now if you have a limited number of radiuses, or if you wish to have a radius smaller than the material thickness, then you may need to set up a bend table. If you're a fab shop, you do this by bending blanks and seeing what they measure to, then plugging your results into a table. Very time consuming.