CAD Modeling of Parts

Using CAD package, the user can model the geometry of axisymmetric drawn cup (final shape) as shown in Figure. Geometry of the cup is described in terms of seven types of geometric primitives viz., Horizontal, Vertical, Tapered, Concave, Convex, Reverse-Tapered and Fillet .

                     Figure: Various Geometric Elements and Drawn Cup Shapes

CAPP system has knowledge represented in the form of Decision Table/Rules of the form

 IF

<condition>

THEN

<action>

Table shows the Decision Table/Rules for Automatic identification/ recognition of the type of cup (forming type) from CAD model geometry primitives.

           Table  : Decision Table for the Determination of Drawn Cup Type