HD43249: BIW - SHAPE FILLET CAN NOT BE CREATED BETWEEN TANGENT SUR F ACE

APAR status

• Closed as suggestion for future release.

Error description

• Scenario :
  1. Open the supplied CATPart.
  2. Create a fillet between fillet.12 and
  fillet.15. Selection order and direction arrows
  must be as shown.
  3. After clicking OK the shape created by the
  Fillet is not as expected. We expected to get
  another pocket creates just as previous ones
  (Fillet.13,14 and 15)
  4. Please note that Warning is given for Tangency
  design detection.
  4. The surface created is not good in quality.
  5. This problem comes everywhere in surface
  designing when we have Tangency design. DS
  recommendations in handling such cases are
  requested.
  .
  .
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• THIS APAR IS CONSIDERED AS A SUGGESTION
  FOR IMPROVEMENT WHICH CANNOT BE
  INCORPORATED IN VERSION R16GA
  PLEASE CONTACT YOUR SUPPORT DEPARTMENT IN
  ORDER TO OPEN A REQUIREMENT FORM.
  .
  Incident Diagnosis :
  Shape fillet cannot be created between tangent
  surfaces
  .
  Development Request Justification :
  Since the top and bottom surfaces are tangent to
  one another, the fillets that need to be generated
  have pointed ends. To generate such fillets as
  Shape Fillets in GSD is quite difficult because the
  initial topology does not make it easy to predict
  such behavior.
  In such cases it is recommended to first assemble
  the various surfaces into one single surface and
  then to fillet the resulting sharp edges (the edges
  help predict the pointed Fillets).
  Also, since the free border of the skin must be
  reached, it is recommended to first create an
  EdgeFillet with a KeepEdge and then to round the
  kept egde. Both Fillets will have pointed ends at the
  free border of the skin.
  This has been illustrated in the part contained in
  the attached Recommendation.zip file.
  The "Trimmed Geometry" set shows how to
  generate the single surface with the sharp edges
  by reducing to a minimum the number intersections
  between tangent elements. Of course, it is
  impossible to entirely eliminate this, because the
  scenario is based on a tangent design, but it seems
  that this is the best way to contain the problem. For
  instance, the first approach was to trim the
  surfaces with one another, but it is preferable to
  split the surfaces first and assemble them
  seperately (as can be seen in the "Trimmed
  Surfaces" set).
  The "Pointed Fillets on Edges" set shows how to
  generate the Fillets on the resulting surface.
  .
  Answer and By-Pass
  See above
  .
  .
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels