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simple(?) solidworks sheetmetal problem

This should be an easy problem, however i'm a newbie and can't figure it out. Thanks in advance for any help on this. Here's the problem: I shelled a rectangular solid to make it into a sheetmetal part. There will be 4 flanges along the top so that a separate lid will rest flush against the flanges. What should i do about the four corners so the flanges don't interfere with one another? There will be screws located at the four corners securing the lid, so it seems that any diagonal flange cuts at the corners wouldn't work. ??

Reply to
jay
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Reply to
RaceBikesOrWork

fyi, thin-extrude or base flange are the preferred methods for creating sheetmetal parts. shelling a solid is a last resort method.

after which, use an edge flange, then edit sketch, pull back the ends of the flange.

reference my crude ascii art. ______________ | | | o |_________ | | | |

Reply to
kb

If you use a miter flange, it will take care of all the corners for you. If you need an example, let me know.

WT

Reply to
Wayne Tiffany

downside with mitre, cannot put fastener in corner as requested. ;)

Reply to
kb

Ahhh, missed that point. :-)

I would probably go with an extruded base with the 2 sides, then edge flange the 2 ends.

Or, can the fasteners be moved a bit so that the diagonal joint of the miter flange not get in the way?

WT

Reply to
Wayne Tiffany

Hi Jay -

I made you a sample model. What you want to do is pretty straight forward.

You can make a shell and then sketch your top lip on the upper rim of the shelled box.

You can make the miter cuts if you want or have a straight edge. There are no perfect options. I drew one of them to give the basic idea.

There are lot's of ways to do this and get good results, so don't let the newness of it all stop you from trying different methods: Here is one way using the Insert-Bends method:

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Also note - this type of part is hard to tool sometimes, especially when the dimensions are as I drew it. If it is done in a brake press,

2 of the sides are simple to form, the third is a bit challenging, and the 4th an absolute nightmare. When making a box with a top rim, I always try to consider the last formed edge and ask myself if the forming punch will be able to come out of the box. Food for thought.

Later -

SMA

Reply to
Sean-Michael Adams

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