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Tutorial
Surface Modeling - Fan Blades

Tushar Suradkar
www.oocities.org/SeGuruCool

  segurucool @ indiatimes.com


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    In this tutorial you learn :

  • How to model a fan blades using the new surfacing command of Solid Edge
  • How to use the Extrude Surface command
  • How to create an Intersection Curve
  • How to create a Bounded Surface
  • Thicken surfaces to make solids


    • It is assumed that you are familiar with the basics of Solid Edge Part modeling.



    Create the hub

    Start with creating the hub for the blades.






    Drawing the profile - Top View

    Start with creating a sketch in the the x-y plane.

    See figure.





    Drawing the profile - Side View

    Using the Curve     tool, create a curve as shown in figure.





    Drawing the profile - Side View Plane

    This curve is in a plane parallel to the y-z plane as seen from top.

    See figure.





    Drawing the profile - Isometric View

    In isometric view, the curve looks as shown in figure.





    Extruded Surface


    Click the Extruded Surface     tool on the Surfacing toolbar.

    Click Select from Sketch     on the ribbon bar.

    Select the side view profile as shown.

    Click accept     on the ribbon bar.

    Specify the direction towards the hub and click to create the surface as shown in figure.





    Extruded Surface - Top View Profile

    Similarly, create another extruded surface from the top view profile.

    See figure.

    This time, click Symmetric Extent     on the ribbon bar.

    Specify the extent of the extruded surface as shown.

    Click Finish on the ribbon bar.





    Intersection Curve - Select Set 1

    Click the Intersection Curve     tool on the Surfacing toolbar.

    Select the side view curve as the select set 1.






    Intersection Curve - Select Set 2

    Select the top view curve as the select set 2.






    Intersection Curve - Done

    An intersecton curve will be formed at the intersection of the two surfaces.






    The Bounded Surface

    Click the Bounded Surface command from the Surfacing toolbar.

    Select the four edges of the intersection curve.

    Click Finish on the ribbon bar.

    A surface will be formed from the four edges.

    Careful observation from different views will reveal that the blade is a twisted one and not flat.



    Surface to Solid


    Click the Thicken     tool on the Features toolbar.

    The Thicken tool is in the same flyout as the Thin Wall and Thin Region tools.

    Select the bounded surface to thicken.

    Use a small value of 2 mm to thicken in any direction.

    Round off sharp edges and pattern the blade.



    Tushar Suradkar     segurucool @ indiatimes.com

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