Challenge

Week 8 - Challenge 2 - Switch Bezel Design

AIM :

To design the switch bezel and to do a draft analysis for it by creating the required tooling direction with the help of Bisecting method.

INTRODUCTION:

The control panel bezel is the frame part of the window switch bezel that holds its switch covers and buttons into place. Moulding is the method used to manufacture the plastic trims of an automotive by most OEM’s, hence by considering the manufacturing consideration I am designing the switch bezel.

DESIGN CONSIDRATION:

Class – A surface should be aesthetically smooth and good.
Class – B surface should have all the supporting features like ribs.
Parting Line should coincide with the B surface since flashing couldn’t affect the aesthetic of Class – A.
Class – C surface should also pass the draft analysis.
Thickness of the component should be 2.5 mm.

PROCEDURE:

First, the given styling surface is checked for any irregularities and if found any then it is corrected by using Trim, Extrapolate, Split and Join commands.

CREATION OF TOOLING AXIS:

Considering the Ejection from the cavity of the mould after manufacturing the interior trim (switch bezel) must have the nominal 3-degree draft angle.
Hence the tooling direction is created by considering the above factor and bisecting method is used.

CREATION OF CLASS B SURFACE:

for creating class B surface first extract all surface then untrim and extrapolet if needed then offset the surface and join all extracted surfaces.
give neede fillet value by adding or subtracting thickness of the component.

CREATION OF CLASS C SURFACE:

take boundary of class sweep according to requirment and do some operation like extrapolate, join, smoothened the curve if needed.

CREATION OF CLOSED SURFACE:

CREATION OF SOLID SWITCH BEZEL:

DRAFT ANALYSIS:

it is done to check that the design part is fine to manufacture by molding or not.

FEATURE TREE:

Ship work like this
in your own course.