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How to create forging draft or oscillating draft

Question asked by Don Howe on Apr 28, 2014
Latest reply on Apr 29, 2014 by Don Howe

I used to know how to do this but it's been so long my method doesn't seem to work anymore. How do I create forging draft or what was refered to many years ago as oscillating draft. I'm a SW2004 user.


I have a very simple part which I want to create a surface loft using 3 profiles each with a pierce relationship and a guide curve. Once the loft is created I would remove the material in front of the lofted surface using a surface cut. See the images below



This is what I end up with when I create the loft




What I am looking for to happen is the following (after the surface cut)



The image above is taken from a paper I wrote years ago when I worked in the Forging Industry and at that time I was using SW97or 99. So I know it can be done...I just don't remember how to do it.