Week 9 - Challenge 2 - Switch Bezel Design

Switch Bezel Design

1. Introduction

Switch Bezels in car are parts which contains switches and controls for different functions like Window control, Door lock/Unlock,Media and Temperature controls. Acrylonitrile Butadiene Styrene(ABS) is used in switch bezel.which is scratch-resistant and wear-resistant. Sturdy, polished, not easy to fade, durable.The stylish appearance adds a sense of luxury to your car and makes your car unique.The car window switch cover helps protect the car window switch button from scratches or impacts. Cover existing scratches. The shell is sturdy, rust-proof and scratch-resistant, ensuring maximum strength and durability during long-term use These car window lift switch frame cover has self adhesive design, no harm to your car, easy to attach it to car and won't peel off. Surface must be clean and dry prior to adhering. [Reference: 1, 2]

2. Tooling Axis Creation

The tooling axis is created with the mold cavity and the removal/ejection of the component in mind. The given switch bezel is an interior trim belonging to the side doors (Right Hand Side). It consists of a compartment for switches and controls. This component is a cavity/depression with three side walls. The drafting requirement is mainly to ensure the cope can be removed without obstruction. A minimum draft angle of `3^@` is maintained with the tooling axis.

Tooling axis is created by intersecting the component with two planes at a approximate midpoint of the cavities lower surface. The wall or draft lines are extented to intersect at a point. The midpoint of the lower surface is found. Both points are joined to create a tooling axis. In case the tooling axis fails the draft analysis it is adjusted accordingly.

3. Part tree Structure

4. Draft Analysis

4.1 Class A Surface

As shown all surfaces have a draft angle of above 3deg as there are no pink surfaces. Refer color codes in the below figure.

4.2 Plastic component

The plastic part must have a draft of >3deg on both the top and bottom surface. The top surface all have above 3deg draft as shown in the below figure. The Bottom surface is all pink which indicates a negative draft as per requirement.

5. Multi-view of Plastic Component