Week 8 - Challenge 2 - Switch Bezel Design

DESIGN AND DRAFT ANALYSIS OF SWITCH BEZEL

Aim: This project aims to create a switch bezel plastic component using the given class A surface following the OEM standard. and perform the draft analysis.

SWITCH BEZEL:

The control panel bezel is the frame part of the window switch 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 the switch bezel is designed.

Raw Material used in switch bezel:

• ABS(Acrylonitrile,Butadiene,Styrene).

CLASS A SURFACE:

• First, the given styling surface is checked for any irregularities and if found then it is corrected by using Trim, Extrapolate, Split and Join commands.
• The below image shows that the Class–A surface is clean and no irregularities present, so let's move on to the next step.

Tooling axis:

• To create the tooling axis we should prefer the axis which shows the maximum visiblility of the surface and then to take the point we should choose the flat surface.

Draft analysis:

* After tooling axis we should use the draft analysis for checking the tooling axis is that is in correct direction are not.

Class-B surface:

• For creating the class-B surface the required surface except the offset surface have been extracted.
• Then all the surfaces were extrapolated to get intersections between them.
• Since the thickness of the Switch bezel is 2.5mm the B-Surface was offset to 2.5 mm and the required trim operations must be carried out.
• Finally, the required corners have been filleted to 12.5mm (15mm-2.5mm). [ 15mm - fillet value of the A-surface, 2.5mm – Thickness of the component ]

Class-C surface:

• The required outer edges of the A-Surface were extracted using Multiple Extract. Then for avoiding the patches the curve is smoothened using the Curve Smooth option.
• Then by using the sweep command the surface was created with the following feature controls.
• Then by using extrapolate command the edges were intersected between the surface corners which eases the trimming operation.
• Now the required portion of the C – surface were trimmed out.

Draft analysis:

* After tooling axis we should use the draft analysis for checking the tooling axis is that is in correct direction are not.

Part body:

After all the process is then the surface is converted into closed solid body.