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How can I modify a flange so that the two side faces are aligned to parallel planes?

jsejcksnjsejcksn Member Posts: 6

Here's an image of the desired part geometry as a reference:

comparison_reference.png

I would like to model this as a sheet metal part, but I'm not sure how to create identical geometry with the flange feature. Here are the existing flange feature details:

flange.png

It appears that when deselecting "hold adjacent edges", the effect is only applied to the back edge and not the front edge. I would like for both side faces of the flange to be parallel and aligned to the implied perpendicular planes colocated at the ends of the flange edge. How can I modify the flange so that the resulting geometry is identical to the reference part geometry?

Here is a link to the example document:

https://cad.onshape.com/documents/882b7f47d2b8ceb345b3ef64/w/913c12ebb79e28d60572f261/e/d2902186bbcab6b54bc04204

Answers

  • glen_dewsburyglen_dewsbury Member Posts: 1,228 PRO
    edited 1:49AM

    I'm a bit confused. Looks to me that you already have what you're describing except that there is a non flat around the bend. That is the nature of sheet metal because of the normal cut used with most machines to be used. I have seen plasma torch set up with tilt head to cut counter sink on heavier material, but most not.https://cad.onshape.com/documents/7dce41e4fd270f1e6c28b5c0/w/74be216b7bf558a460f0ab0b/e/38e44e0536412f22b9c7ecb7

    image.png image.png
  • jsejcksnjsejcksn Member Posts: 6

    @glen_dewsbury I’m not sure which wording is confusing, but I would like to modify the flange so that the resulting geometry is identical to the reference part geometry — to end up with exactly the reference part geometry using only sheet metal features.

  • eric_pestyeric_pesty Member, pcbaevp Posts: 2,476 PRO

    It does look like turning off the "hold adjacent edge" only "removes" material (i.e. doesn't add some to fill in the near corner). It looks like what you are looking for is a "bend ends normal to flange" or whatever you would call it….

    While I don't see a way to do this in a single step, this is easily achieved using a "move face" feature:

    image.png
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