Design of backdoor

Objective : To desing a complete backdoor inner and outer panel assembly using NX CAD.

Introduction : Backdoor (Tailgate) is an essential part of an Automobile. It guards the rear end of the car. It is generally opened and closed using Latch and Striker. It is kept in position using gas stay and some of them has wiper to clean the rear windshield attached to the backdoor.

There are three types of backdoor;

- Top mounted (More common)

- Side Mounted

- Bottom Mounted

(image courtesy : Google)

(image courtesy : Google)

Considerations for Designing :

- Clear Visibility

- Equal Force distribution on impact

- Latch and Striker Position

- Gas stay position

- Hinge position

- Hemming and relief areas

Latch and Striker Position -

Tooling Axis

Inner Panel

Inner Panel with attachments

Reinforcements

- Gas Stay

- Hinge Attachment

- Wiper Motor

- Latch and Striker

Outer Panel Upper and Bottom

Corner Relief

Assembly of Backdoor Inner and Outer Panel

Conclusion

The design of the backdoor was done successfully and the assembly was done using hemming operation.