Hi, I am trying to model an inside outside flanges without any relief holes. This is the corner I am trying to mimic, but solidworks refuses to sketch bend the inside flange. Any help? Thank you in advanced.
James, You must add tab to fill in the inside corner, the model will not look so good but it works.
Welcome to the forum.
If you use a miter flange with tab to fill in the outside corner, you will get a relief in the flat pattern as shown below. The model looks better but still ends with a relief.
use the closed corner Tool, this will get you very close to what you show.
I have found a trick that makes many of those kinds of corners a bit easier. Give the starting tab a very small radius in that corner, say 0.0002. Then pull both flanges at the same time including the radius around the corner. Attached is an example I ripped out of an assembly driven file.
Then unbend the part, make the desired cut, then re-bend. This allows many more options for what the corner cut looks like than the canned closed corner with a relieve added after words.
However, some the the close corner options an relieve options may be just what you are looking for. It's a case by case bases. In general things work better when metal bend two ways if the cuts in that zone are symmetrical about the corner.
The problem is control over the cutout when metal is bent two ways. Sheet metal does not like that..
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