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How to extract or make pressing die from sheet metal part drawing?

penny_lee
penny_lee Posts: 3 ✭
in Community Support
We have completed a sheet metal part, let's say an aircraft wing rib. Now that there is a 3D model of the part. How can we extract a pressing die with measurements so we can produce a forming die? Or do we have to make a solid model to fit inside our rib 3D model?

Just learning Onshape and its capabilities.

Answers

  • john_mcclary
    john_mcclary Posts: 4,095 PRO
    edited June 2022
    What I would do is make another part studio.
    Then derive your formed part into the new part studio.

    Draw a 3D box around the part.
    Boolean subtract the part from the 3D box (With offset) 
    Split the 3D box in where you're parting them.

    What you should be left with is a stamping tool and die that forms your part.

    From here you need to add drafts and relief as needed of course.

    But that is generally a good place to start.
    Tool & Die | Assembly 1 (onshape.com)

  • matthew_stacy
    matthew_stacy Posts: 489 PRO
    Forming die geometry may need to be further modified to account for spring-back, depending on geometry and tolerance requirements.
  • john_mcclary
    john_mcclary Posts: 4,095 PRO
    Right, I just show how to get the negative of the shape. After that it's up to a die designer to do the typical modifications to make it a die.

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