Design of backdoor
Aim: To design Tailgate/Backdoor panel and its reinforcements from given styling surface.
Backdoor covers the luggage compartment in any Car and consist of various other features like rear washer , mountings for tailgate trim, Seal flange etc
It Consist of the following parts mostly.
1) Tailgate outer panel- Styling Surface, Maybe single or split depending on styling
2) Tailgate inner panel- Derived from styling surface and sealing flange
3) Latch Reinforcement
4) Hinge Reinforcement
5) Gas stay reinforcement

Design procedure:
The initial styling surface is given by the styling department.

Using this styling surface , the sealing flange is developed keeping in consideration the roof and back panel , quarter panel parts.

The inner panel is developed using sealing flange as reference.

Space provided for mastic sealent

Hemming flange



Reinforcements


Full Assembly

Draft Analysis:

With this the design of tailgate and its reinforcements is completed.