calandrature

[Marco_Zillo]

Good morning to all,

I introduce myself to myself, 23 years old, designer of the first weapons in the mechanical field.

I have the need to draw a sheet (thickness 10mm) calandrated and perforated with non-circular geometries;

what I did was to draw in the sheet metal environment an almost closed circle and extrude it with "multiple row".
After that with the command "annulla fold" I laid my piece and drilled with the command "normal hole" (of course before I drew and quotated my sketch until it is black, bound). once with the command "fill" I return to my calandrate I don't match problems but when I go to make the piece developed the odds change me a lot, the fact k is to 0.5 axis neutral. I have done the calculations of what should come to me, considering deformation of rolling etc. ,but I have a 40mm discard that is really so much on a 2000mm diameter piece and 2400mm length. Did someone have the same problem and know how to advise me?

specific that error is in the holes; the piece in its complexity is correct, are only the holes that are wrong.

thanks to all those who will have time to answer.

 

[asblo]

Bye. is more a software question than design, so you should indicate that software uses and insert the discussion in the correct section. with solidworks doing the procedure you described the hole remains to the correct distance I indicated in the sketch on the extended face

 

[marco.mz]

Hi.
is the plan on which you have placed the holes and what you go to develop your geometry is always the same?

 

[Marco_Zillo]

Bye. is more a software question than design, so you should indicate that software uses and insert the discussion in the correct section. with solidworks doing the procedure you described the hole remains to the correct distance I indicated in the sketch on the extended face

ciao, use solid edge

 

[Marco_Zillo]

Hi.
is the plan on which you have placed the holes and what you go to develop your geometry is always the same?

Yes, once I cancel the fold with the appropriate command I go to make a sketch on the plane matching to the external face of the sheet. I use the outer edge as an axis to spread the calandrate.

 

[Be_on_edge]

Yes, once I cancel the fold with the appropriate command I go to make a sketch on the plane matching to the external face of the sheet. I use the outer edge as an axis to spread the calandrate.

How can you cancel the fold ? by excavating the calandrate model will be exactly where required without having to calculate a hypothetical position on the developed (which then does not match).

p.s.: here from me we do this on about 10 parts a day and we do not find any problem.

 

[Be_on_edge]

I add one thing: to use the command 'normal waste' on a flat face not from any benefit compared to the 'scavo' command

 

[Marco_Zillo]

How can you cancel the fold ? by excavating the calandrate model will be exactly where required without having to calculate a hypothetical position on the developed (which then does not match).

p.s.: here from me we do this on about 10 parts a day and we do not find any problem.

hi, yes my ideal world would be to have diameter and angle of the pipes that enter my calandrate piece and to laundry with flat tangent unfortunately but the odds of the holes are all referred to old drawings so I have to force to pierce the developed calandrate model. use cancels fold precisely to be able to pierce the developed and maintain the holes; otherwise as you know, if I try to pierce the piece by doing only development plan it is not maintained drilling. (I saw your advice on that).

But I think it's a software problem because with simple geometries it doesn't give me problems, with complex geometries I respond to these differences. I'll hear siemens and maybe I'll show you, it might be useful to others.

thank you all for now