Hi, have you tried using the unwrap command in Inventor 2020?
I have Inventor 2018, so I can't try to reach a flattening of the surface. You cannot achieve a flatPattern in the conventional way.
Sergio Daniel Suarez
Mechanical Designer
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As suggested by @Sergio.D.Suárez , try adjusting the parameters in Unwrap and see if you get a "close enough" result.
To put it simply, Inventor sheet metal at this point can only provide accurate flat patterns of parts formed by brake press and straight roller, any forming that stretches the material in more than one direction at once typically cannot be flattened without problems getting in the way. The unwrap method as Sergio and Mather suggested is your next option.
Thank you all for replying.
Unwrap created some weird results, using rigid frame on the lower arc it made everything too big:
Without the rigid edge it created something resembling what I need:
though as you can see there's way too much material on lower arc and a bit too little on the upper arc. Now I'm trying to get the 'flat pattern' to work, but when I create a flat pattern from something like this:
it makes literally a rectangle material:
I've attached a file of the sheet metal part I'm trying to use flat pattern on, maybe there's something I didn't tick? Or is it normal behaviour and I can't get it to 'flatten' the part?
You will not get a correct flat pattern of that part.
Hi! The rectangular flat pattern is a representation of an unrolled elbow. The rolled (Contour Roll) shape created in Inventor Sheet Metal is meant for keeping the unfold length of linear extensions on both ends intact. The roll itself is not meant to be flattened.
Many thanks!
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