AP2257 - Draft A1 - Machined Part Modelling for CATIA V5

AIRBUS
Machined Part Modelling for CATIA V5
AP2257
- Insertion of fillet radii in multi-body approach
• To the body in progress, add fillet radii:
1- For the walls (8.5 mm radius).
2- For the pocket bottoms (4 mm radius).
- Assemble this new pocket with the PartBody
4.2 4 or 5 axis pocket with open angle
4.2.1 Producing 2.5 axis pocket
- Definition of section construction plane
! For correct distribution of the data, create a new "OpenBody" with a specific name in
which we will find all of the construction data used for the construction of the 2.5 axis and
5 axis pockets. Indeed, these elements do not directly participate in the definition of the
pocket contours. They must therefore not appear in the sketch associated with the "body"
defining the latter.
• Construct the "offset" surface (S1) from the outer surface of the part offset by
the value of the small integral stiffener thickness.
• Define the pocket thickness plane intersection curve (C2) with the small integral
stiffener inner surface (S1).
• Construct a plane (P1) normal to the inner line of the contour passing through its
centre. Use here the plane (P) previously used to define the 5 axis pocket.
• Define the intersection curve between (P1) and (S1) called (C3).
• Construct on plane (P1) the sketch containing the construction elements used to
determine the contour of the 2.5 axis pocket.
Issue:Draft A1 Date: 13 February 2002 Page 29 of 46