Some helpful advice brought together by Peter Crawley who  was asked recently if there was a method to notch, bend, and straighten hollow sections using Inventor. I’ve discovered a couple a couple of methods, both of which are shown below. There are probably more, but these two look worthy of sharing. If you have any feedback or want to suggest an alternative, please use the comments below. (Notch and bend description – see https://en.wikipedia.org/wiki/Notching)

Unfolding the part pictured above

Being a fan of Frame Generator, I was keen to see if I could find a method that could be used to unfold an existing frame. In conjunction with an unlikely partner (Sheet Metal) it can! See the second method below for details.

Method 1 – Notch and bend using the “Bend Part” feature

This method assumes you can straighten the design in your head before modelling it and bending it into shape. If you have the brain for that process, then this is the method for you because it’s quick and easy. If you’d prefer to model the final result and then “unfold” it, skip over to Method 2 below.

Depending on your preference for modelling steelwork, this might appeal because it uses standard sketch-based features on the part file itself. I like it for its simplicity, but for multiple bends, it can quickly become difficult to calculate exactly where the cuts should be made, especially if the part is bent in more than one plane.

Continue to read the  the full article here |  Monday June 26,  2017   |||