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Summary "How do you model a lamination stator stack w/ a 20 °skew angle winding slot?"

Newbie

Summary "How do you model a lamination stator stack w/ a 20 °skew angle winding slot?"

Pro Gurus:

Thank you all for your responses.

Below are the answers that I receive.

#2 suggestion 2 is what I want to achieve. However, I don't know the
helical sweep formula to make this cut. Does anyone have an idea or better
yet does anyone have a model so I can take a look at how this is done?
1 REPLY 1

Summary "How do you model a lamination stator stack w/ a 20 °skew angle winding slot?"

To do this in a single part you will need to model the first lamination and
pattern it up and rotated. In the past I would have used datums on the fly
to create that effect. This can still be done but it will take a little
setup.

1) Start with 3 default datums.
2) Add a datum axis between the first two. (A_1)
3) Create a datum plane thru the axis at an angle to one of those two planes
angle =30deg to start (name it rot_ang) Later you can use this to clock the
entire helix.
4) Create a datum plane offset from the third datum. offset=1 (name it LAM)
later you may use this to offset the helix along the axis.
5) Create an extrusion (don't create the sketch first)
From inside the extrusion control panel create a sketch, choose the LAM and
ROT_ANG for the sketch plane and top references.
Sketch the lamination. ( make sure the sketch references nothing but A_1,
LAM and ROT_ANG)
Done
define the extrusion thickness (one lamination thickness.)
Done
6) In the model tree you should be able to drag the two datums LAM and
ROT_ANG, and drop them into the extrusion feature.Expanding the extrusion
should show the two datums and the sketch.
7) If proe didn't automatically hide datums LAM and ROT_ANGLE do that now.
There really isn't any need to see these again.

With all that done, you should be able to pattern the extrusion along the
axis and rotate it at the same time, using the dimensions of the datums LAM
and ROT_ANG both in the first direction together.

Note: The Modle Tree dragging of the datums into the protrusion does not
work in my WF2 Student Edition. For that I had to group the datums with the
extrusion and pattern the group.

Glenn



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