how to get a flat pattern for a bent pipe?

we have to do the notching for the bent pipes so that we can weld easily.for that we need the flat pattern of our bent pipe model.

3 Answers

You can not do it just with SW. What you need is add in called SPI sheet metal works. It is installed inside SW and it is designed specially for the pipes.

you can get flat patterns if you models is developed as sheet metal parts
when cutting notches make sure your cuts are normal cuts, this will allow continuity to your flat patterns

Kumar, here is an example of flattening a tubular bent surface. Scroll down the page a bit and you can see it. There are also other examples of flattening different non-developable surfaces.

http://www.exactflat.com/software-for-insulation-jacket-development