Split Sheet Metal/Flange

ricardo_chavarria

Hi. I'm new to sheetmetal work. Anybody have any way of splitting a flanged face? I need to remove a piece of the sheetmetal I have on my model.

Jake_Rosenfeld

Hi @ricardo_chavarria ,

I think your best bet is to make a sketch profile over the material you want to remove (using the sketch "use" command https://cad.onshape.com/help/Content/sketch-tools-use.htm) and then do the cut with an Extrude-remove.

https://cad.onshape.com/documents/d35916ea66f980cc74f30dc2/w/5ed0c53a8f751a8556538653/e/0c39bcbcbc84ce5e8fc074d9

lana

You can use boolean feature to cut it out. If you'd like some-one to help you, please make your document public and post its URL here.

ricardo_chavarria

Jake_Rosenfeld said:

Hi @ricardo_chavarria ,

I think your best bet is to make a sketch profile over the material you want to remove (using the sketch "use" command https://cad.onshape.com/help/Content/sketch-tools-use.htm) and then do the cut with an Extrude-remove.

https://cad.onshape.com/documents/d35916ea66f980cc74f30dc2/w/5ed0c53a8f751a8556538653/e/0c39bcbcbc84ce5e8fc074d9

Hey Jake, thanks for the example. That makes total sense, but I can't replicate the result in my own document. For some reason the Extrude won't complete properly.

Here's my doc in case you can take a look: https://cad.onshape.com/documents/9fa4ca4ecb8219d4fd898cd6/w/2bdb01ebbe3371a8b83a5ee8/e/af3c771119f8f539b6c44771

Jake_Rosenfeld

Hi @ricardo_chavarria ,

One of the current limitations of our sheet metal system is that cuts must cut all the way through the bend. That requirement is a somewhat confusing, let me show you what I mean here:


My suggestion is to do something like this, so the cut destroys the whole bend at that location:


https://cad.onshape.com/documents/dbfb372eb33001ce642b34ea/w/f8d0223a20c461f10ba05836/e/1173e9eaf808ce465e6413ca
Hopefully this is an acceptable design choice for you, please let me know if this doesn't satisfy your requirements.

@lana may also have some ideas about what you can do here.

lana

I would not even try matching the shape too closely if you want to have small flanges on the sides of the cut:
https://cad.onshape.com/documents/295fd58c9d89964b6330a747/w/840436dd569550b15d5817cd/e/9f8b369b18d2d01927994760

ricardo_chavarria

Awesome, that worked well, thanks Lana!