technical design standards

[un_poldo]

hi, I don't know if it's the right section, my question is addressed to the "norms" of the technical design rather than the use of the software.

I have a sheet, 2 mm hypotheses, which I want to bend to 90°.
in the drawing I want to indicate to make a fold more "to live edge" possible. what would you indicate in the drawing?
do 2 lines at 90° with live edge and put a text caption?
do a minimum radius simulating the best possible result and quote it (if you quote the inside, the outside, or the axis?)?
indicated the use of a specific quarry? (if you have to make the piece, you have no quarry in question? )

 

[radio]

You better hear who's going to do the job.
the minimum bending radius depends on the type of material (aluminum, stainless steel, altoresstential steel...), and its characteristics; for example two steels with equal mechanical characteristics can have different bending qualities.
as regards the quotation normally the radius or the inner diameter of the fold that corresponds to that of the punch.
However, a 2mm sheet is not very thin, and even in the case of very ductile material I think it is very difficult to bend it at a right angle with a knife punch.
Bye.