Design and development of Automotive interior door trim

Click here for Master Section Development of B-Pillar

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Objective:

• To develop Interior door trim from given Class’A’ surface and master section into a functional product design, following the OEM design standards with the injection molding principles.
• Design Switch Bezel, Arm-rest, a Lower substrate, and Map-pocket with appropriate dimension.
• Create B side engineering features WRT master section such as Dog House, PushPin, Flanges, Heatstake with Ribs.
• Find the tooling axis for the given Class-A Surface should be created to meet the requirements of the draft angle.
• Perform the feature Draft analysis on every components and B side engineering features.
• Assemble and render interior door trim

Introduction:

CATIA V5

CATIA is a multi platform 3D software suite developed by Dassault Systèmes, encompassing CAD, CAM as well as CAE. Dassault is a French engineering giant active in the field of aviation, 3D design, 3D digital mock-ups, and product lifecycle management (PLM) software. It is also possible to generate model dimensions and create reference dimensions in the drawing views. The bi-directionally associative property of CATIA ensures that the modifications made in the model are reflected in the drawing views and vice-versa.

Generative Shape Design

It provides an extensive set of tools for creating and modifying mechanical surfaces used in the design of complex shapes or hybrid parts. Its feature-based approach offers a productive and intuitive design environment to capture and reuse design methodologies and specifications. Help to design advanced shapes that are based on a combination of wireframe and extensive multiple surfaces. It includes high-level features with full specification capture and reuse.

The Methodology I followed to get a successful Door Surface is divided into 3 parts which are further divided into sub-classes.

1. Checking the Class –A Surface
2. Segregating the Class-A into Map Pocket, Lower Substrate, Arm Rest, and Master Sections.
3. Dividing the Map Pocket and the Arm Rest into two Parts.
4. Creating the Required Flanges for Arm Rest and Map Pocket.
5. Generating the Class B Surface.
6. Creating the Class C Surface.
7. Joining the Surfaces.
8. Generating the Solid.
9. Creating the B Surface Features such as Heat Stakes, Dog Houses, and Push Pins.

Map Pocket

switch bezel

B Side Engineeering Features

Dog House