Punching design rules

Hello

For sheet metal specialists, what are the rules to follow in design to make a punching/stamping as in the image that is technically possible to make?

And for my personal culture, does this type of form have a technical name?

 

 

Thank you.

S.B

If you are on solidworks, the software integrates "formtools", i.e. shape tools. The "sheet metal/stamping tool" function allows you to first define which surface you want to deform.

Then you search in the "design library", "SW library", "shape tools" pane. You should find a lot of shapes often used. And finally you drag the tool you want directly onto the face to be stamped.

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Thanks for the answer, but I'm on Creo.

 

S.B

Hello

To function properly, the die-cutting tool must have the following characteristics:

  • The punch should be a little smaller than the shape (1/10 of the thickness of the sheet if steel)
  • The die is the same as the shape but must be flared by 1% and 7% (draft) at the part ejection
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Thank you Alain.erp.

Is there a minimum length to be able to offset the sheet by its thickness + 0.5mm?

In my case, it's 316 thick 3mm stainless steel.

 

S.B

This shape is called a  sheet metal puncture.

My indications come from personal works that are a bit old.

I have attached a doc from a teacher where he determines the dimensions of the punch and the die as well as the cutting forces.


cours_prof.pdf
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This stamping is feasible if you have the right tool.

 

For the rules, it all depends on the tools,  maximum thickness etc...

 

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Very good document your course, Alain.

Thank you, I'll keep it preciously.

Cdt.

Fred

 

Thank you Alain for the document.

On this project, everything will have to be created.

The part is more complex, with more classic cuts and folding.

And it will be done as a subcontractor, we are not equipped to do the work of the sheet metal.

 

S.B

A very self-explanatory site:

http://tpworks-place.com/viewer.php?id=2357

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