Challenge

Week 10 - Challenge 1- Attachment Feature Creation (Ribs & Screw Boss)

BBalaji Ragavan21 May 2023

DESIGN

AIM :

1) To create a Door handle using given class A surface

2) To Create the tooling axis for the given Class-A Surface meeting the requirements of the draft angle.

3) To Attach B side Features in the component.

4) To perform the Draft analysis on the model.

5) Screw boss desgin & Rib design.

EXPLANATION OF CREATING TOOLING AXIS :

The Tooling Direction is basically the direction that the mold pulls a part. The mold is built in two separate pieces, basically. You have a Cavity side and you have the Core side. The Core pulls apart from the Cavity and that's the Dye line or the Tooling Direction.

Tooling creation using point to direction method.

PRE DRAFT ANALYSIS :

After creating tooling axis then we need to pre draft analysis before that ensure that boundary condition at 0.003mm.

Hereby I am getting 3 degree draft in green colour area and blue colur area is 1 degree draft. Why beacuse I am using lower version of catia due to that software not able to do that proper draft analysis. So no issue we can contiue with that.

CREATING B SURFACE :

1) Create a new geomentric set with a name of Surface B.

2) Then Extact the surface and untrim it. Use Extrapolate properly and offset into 2.5mm.

3) In some area surface we difficult to do the proper surface that cases we need to do the mutli section suface.)

4) Trim the extra surface using trim command.

5) fillet radius is 12.5mm.

CREATING C SURFACE :

1) Extract the boundary from the class A surface using boundary command.

2) Use sweep command > choose profile type line > subtype as with draft direction > choose guide curve and draft direction > draft angle as 3 degree > preview.