Creating an Addendum Surface

This task shows you how to create addendum surfaces, as top or wall surfaces, to extend the stamped part.
Top surfaces extend the stamped part, and are continuous either directly with the part or with the clean contour surfaces.
They are referred to as Reference Surface.

Open AddendumSurface01.CATPart from the samples directory.
  1. Click Addendum Surface in the Addendum Design toolbar.

  2. Select an axis system (stamping direction) and the surface to extend.

    When you select the part surface, its boundary is analyzed, and tangency discontinuities are displayed.

  3. Select the first profile or vertex used to create the top surface.
    Use the contextual toolbar on the selection to create or edit profiles.
    See Creating Profiles for more information.

  4. Select the second profile or vertex used to create the top surface.
    • It must be of the same type as the first one (Select two profiles or two vertices).
    • You cannot select an element already selected as first profile or vertex and vice-versa.
    • If you have selected two vertices, you can create or edit top surfaces, with or without fillets, from the contextual toolbar.
    • If you have selected profiles, you can create or edit profiles or addendum surfaces from the contextual toolbar.
    • Profiles can be rotated along the Y-direction, in the UW plane.
    • The Z-direction of a profile can be aligned with the Z-direction of the input axis system.

  5. Select an opening line (Intersection of the wall surfaces and the binder).

  6. Click Top Surface to create one.

An Addenda Surface Set is created.

Profiles are created on the selected section, one on each tangent discontinuity.
A multi-section surface is then created between the profiles.
Whenever possible, one surface is created between two profiles.
Il not possibe, several surfaces are created.