how to calculate material crushing (cold deformation)

[kipsing]

Hello, everyone.
I attach the quick sketch of a design in which:

- red piece: plate with diam.est. x, diam.int. z, sp. s
- green piece: premente
- blue piece: matrix
- yellow piece: sting inf.
- piece tratt.: extractor

the sketch represents the phase of resumption of a round plate to which you need to make an external bevel and an interior.
the piattello is first handed over, then right on this block.

I'd like to apologize for my little engineering knowledge. Is there any way to calculate a relationship between the two provisional diameters of the haircut phase (int. e est. - sting and matrix), and those of this second phase of recovery? every time I find myself going for attempts going back until I arrive at destination, but I would be curious to know if there is a way to calculate this crushing of material according to the thickness and angles that hold between matrix and lower punch until the correct size of the plate.

I hope I've been clear enough and someone can help me.
hello to all

 

[rinato]

hi, i.e. you would like to know which diameters to draw and then easily get bevels prefixed with the recovery operation?
It seems obvious to me that the material that "manca" on the bevel must flow towards the base that remains flat and towards the outside or the inside, depending on the diameter considered. I believe that this is only a calculation of volumes to be repositioned, but based on a minimum of empirical evidence on similar pieces.
that you should understand how it flows Usually in practice the material (more side/more vertical) and orientation accordingly.
would be easier if everything the volume of the starting disk should become something else and there were no pressure problems for the mold and press. but with partial deformations you need to set up a minimum of databases. then you can get there with less evidence, but never without.
That's for the least I've ever done.

otherwise change production process and go back from bar and get the finished piece immediately, without having to build molds and do tests. that is not said is such an evil idea (ok, joke...) .

in any case: good work,
Reborn.