Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

AIM :- TO DESIGN A RIB AND SCREW BOSS OF A DOOR HANDLE BY USING CLASS A SURFACE.

OBJECTIVE :- To Create the Attachment Features (Ribs & Screw Boss) on A Door Handle through the given Class-A surface by creating tooling direction, the tooling axis for the given Class-A Surface should meet the requirements of the draft angle i.e. minimum 3°and at the end to perform the Draft analysis on the model.

CLASS A SURFACE :-

TOOLING AXIS :-

• For tooling axis. firstly we have used intersection with the plane and class A surface.
• Then we have draw a line with the given points at the intersection.
• Then we have drawn a line at the center between two lines at the sides.

DRAFT ANALYSIS :-

For draft analysis we have used 3 degree and the given tooling axis.

CLASS B SURFACE (OFFSETTED) :-

• For class B surface, we have offsetted the class A suface.
• After offsetting we have some patches missing which we have to filled.
• For filling that patch we have used multisection.

FINAL CLASS B SUFACE :-

CLASS C SURFACE :-

• For class C surface we have used sweep method (with refrence suface).

This is our final class C surface with class A surface.

OPEN BODY :-

• After trimming the finall class B and class C suface, we have our dinal open body.

CLOSE BODY :-

• We have used close body (part design) to solidify our open body.

CONSTRUCTION OF RIBS AND SCREW BOSSES :-

RIBS :-

• For ribs we have created a line on the plane and extruded then thicken.
• For the attacment with the solid body we have union trim with the close body.
• After that we have given our draft angle of 0.5 degree and edge fillets at all the sharp edges of 0.25mm.

SCREW BOSSES :-

• For the screw bossed we have created a sketch at the same plane and the pad it, we have our final screw bosses.
• After that we have to give the draft angle of 0.5 degree.
• Then we have given edge fillets of 0.25 mm at all the edges .

THIS IS OUR FINAL RIBS AND SCREW BOSSES FOR THIS MODEL.

FINAL MODEL :-

INTERSETION VIEW :-

DRAFT ANALYSIS :-

For draft anaylysis, we have taken maximum angle of 0.48 degree because of the ribs and screw bosses drafted.

VIEWS :-

TREE STRUCTURE :-

CONCLUSION :-

WE HAVE CREATED THE DOOR HANDLE WITH RIBS AND SCREW BOSSES AS PER THE REQUIREMENT.