I want to coin a region down to ~70% thickness, then add a bend across that region. I have not been able to produce the geometry without loosing the flat pattern.
See attached part. Thanks!
I suspect that you will have to trick the software by having two configurations, one formed and one flat, with features turned off for the flat pattern. SW does not play nicely with deformation like coining and thinning the material. Since you are able to coin and bent the part you are well on your way.
So a simple Extrude Cut is my best option for the thinned region? I've tried with form tools, but it seems they all require constant material thickness.
That would be my thought. Dennis Dohogne may have a better answer.
You guys are on the right track. If you are making the part in your own shop then the flat pattern is important. You would have to determine the effects of the coining to see how it might deform the other areas of the part and adjust your flat pattern accordingly. But to do this with the built-in sheet metal tools you'll want the two configurations. The first config is the bent part and the second config with the cut to represent the coining.
Well,,, You could Make your material thickness whatever the min distance is after the coin operation then add the material to accomplish the thickness. Then do your cut. Don't need the configurations if you do that. Just flatten.
I did this a couple of ways. First as if part was coined prior to forming. Think that was the question although the cut was made in the formed state. I also did another as if the coin was done after (or during the form). Different results which make sense.
On this the cut was made between an unfold and fold.
This cut was made prior to flattening.
This part is incredible tiny. .008 Thickness. How would you like to make that tool?
Thanks for the suggestions Dennis. I was able to get them to work as long as I kept the extrude off the unfolded bend.
Unfortunately, now my features fail (hems & bends, specifically), I assume because of the extrusion.
And yes, it's pretty tiny. There's a .006" version of this part too!
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