Flat pattern problem in Solidworks 2016

5 answers

• 
  edo Nijenhuis 4 months ago

  There is a function o bound you can use. See in the added part

  Attachments

  test bend.SLDPRT, 134 KB
  Download

• 
  Justin W 4 months ago

  I've inserted the convert solid again and found a problem in the corners.
  At the sheet-metal feature, check auto relief, 2mm obround.
  Unfold, select face and bends
  Make a cutout at the corners so that the plat does not intersect itself
  Fold

  You're done

  Normally you should use the closed corner feature but this feature did not seem to appear.

  You began with an block and after that you made your part sheet metal. What you should do is start with a base flange, and then make a milter flange under the angle what you like (select 3 edges at the same time).

  You will have more sheet metal features in this way.

  

  1. 
     Ivan Veldkamp 4 months ago

     The corner as a flat pattern should look like this:

     http://help.solidworks.com/2016/English/SolidWorks/sldworks/c_corner_reliefs_bend_transitions.htm

     the : Constant Width

  2. 
     Ivan Veldkamp 4 months ago

     a couple of weeks ago my methode worked fine, but now for some reason it doesn't, maybe I have to reinstall the program cause it is failing?

  3. 
     Ivan Veldkamp 4 months ago

     okay I tested it and it doesnt work, the strange thing is, that both ways (the one I sended in as question worked before and now it fails) and now your suggestion also does the same

  4. 
     Justin W 4 months ago

     Is it solved right now? Normally you would use the features under "corner" in the sheetmetal tab for that. If that fails you can use unfold and draw a tab by hand and fold it back.

  5. 
     Ivan Veldkamp 4 months ago

     I couldnt make a cutout because that will result in a gap in the corner, the corner needs to be welded with TIG so Ii have to keep everything as tight as possible.

  6. 
     Ivan Veldkamp 4 months ago

     Thank you!

• 
  Ivan Veldkamp 4 months ago

  I tried it with the mitter flange but as you can see in the file below it doesnt work

  Attachments

  test bend 2.SLDPRT, 73.6 KB
  Download

• 
  Justin W 4 months ago

  the problem is that the plate intersects itself. At the milter flange feature put the gap distance at 6, after that unfold, draw a tab (play with the dimensions, i've tried a little but its not perfect.) and fold to close the gaps.

  

  1. 
     Justin W 4 months ago

     *it should never intersect itself but with the drawn profile it does. It is a problem with the model that if you use this angle, sw can't close the corner properly so it has to choose between two errors. Like you can see after you draw the tab, it will become a very strange shape.

  2. 
     Ivan Veldkamp 4 months ago

     The problem is that I have done this several times but now in this version it doesn't work properly, the flat pattern isn't right, a corner wil never intersect with itself ever but somhow solidworks manages to make that happen

• 
  Roger-Marie Couture 4 months ago

  Try using the correct "custom folding area". Or reduce value of "loss to fold"pict 2. (google translate sorry)