I'm on solidworks 2018. I have to draw a thick sheet metal type part. This part is formed/rolled, and makes an angle with the vertical. Worse, this room must have some kind of lugs on both sides. But there is no way to draw this piece properly and to be able to lay it flat. I tried to draw just the rolled sheet metal and then add the lugs by extrusion, but it was impossible to unfold it. I tried to draw the object by section (see attachment), but impossible to merge the pieces to have a clean flattening. I finally tried to make a surface part but flattening doesn't work either and I need to keep the notion of thickness.
In short, if a member of the Solidworks community has an idea to move forward on this issue, I would be delighted.
I don't see why we couldn't bend it with the sheet metal functions.
However, there will be a problem of the precautions to be taken during the FAB because depending on the bending technique used, the press will not be the same. But hey, these are not timepieces and with the precautions suggested below, it must be fine.
- All parts will need to be cut in the direction of the rolling fiber. - Spring back to manage - When driving, you will have a defect in the studs.
Thank you for all your answers. Unfortunately, I don't want the room to be vertical, but to be at an angle of about 8° to the vertical. I have the impression that this is why the solutions studied do not work.
If so, we wonder why you complicate your life like this.
You make five superfluous transition folds (which are strictly useless and are also wrong) since all your sketches start from a single sketch at the very beginning of the tree.
The transition advantages are generally used when you want to do the equivalent of a crunch to make a hood for example or a part of a cone when you can't roll over the entire piece.
Also, you want to make five folds only because you have four studs, which is absolutely unjustifiable. You also have a 3D sketch that is also useless.
You have to decide: either you make the piece by rolling (and you completely disregard the 4 studs) or you make your piece by crunching. In which case you just have to avoid making a crunch crease just at the place of the studs.
Conclusion as your piece is made
1°) You would just as quickly make it in volume and then transform it into sheet metal. To have developed it (but it's a waste of time with no real added value.
Personally , given what I see with your first sketch, you have a 1980 mm radius bow for a 983 mm chord and a 948.88 mm bow, so as you know the arc length, you know something about the flat press. On such a large radius there is little deformation and shrinkage or elongation at the fold.
So you just have to make your piece flat with the dimensions of the bow and send it to fab.
Keep the current volume to make your assemblies and you're done.
Thank you for your answer. Unfortunately, the press is not that easy to obtain, because as I pointed out, the rolled sheet metal makes an angle with the vertical. So the developed is not a simple rectangle
If you do the same way I did, it should work like in the piece I posted at the beginning. You make two sketches on different planes and you use the transition fold function and for the tenons you have to do it like in my piece otherwise it doesn't work.
I don't understand what you're saying (the rolled sheet metal makes an angle with the vertical.)
I made your model easily. And the press is a rectangle with studs.
To have a lot of experience with parts of this type of mortise tenon and especially given the size of your part, the tenons are not a problem. Worse still, you will have a small defect when driving, but easily rectifiable after driving.
If you have several parts, pay close attention to the direction of the laminating fiber when you do the nesting on the laser cutting machine.
I am attaching the listed document to you, but it is up to you to put it at your own dimensions.
Kind regards
EDIT: @ACcobra's solution also works very well :-)
OK, I finally understood, you just have to make four folds afterwards.
In other words, after having done the rolling and not before, on the other hand you will have to make indentations on both sides of the tenons. A simple line during laser cutting is enough.
I'm making the modification on the piece I already made and I'm posting it to you.
You'll have to be smart because sometimes software doesn't know how to do what we know how to do in real life. (just look at the old versions of SW in sheet metal)
To make your part you will have to make two parts (using the configs:
- one for laser cutting and rolling and flattening
- a second one for bending the tenons.
Indeed, it is apparently not possible to make a fold on a curved tenon so it is enough to make the bent tenon in volume. It is this part that will be used both for the MEP and to make your assembly (if you have one).
Not mastering the surface I can't offer you a solution in surface but others will surely do it :-)
Here is the image of the bent tenon.
To make the piece I attach the part in another post. I'll make you a tutorial because it's not easy to explain. That way my little comrades who don't have the 2018 will be able to tell you that they have a better method. ;-) ;-)
