Design of backdoor
Design of backdoor
Objective:
Use the provided styling surface to come up with a back door design,
use appropriate design methodologies,
and provide the necessary reinforcements and embosses
Backdoor Introduction:
An automobile back door or Tailgate is the panel that covers the trunk of an automobile.
It enables access to the main luggage compartment. A hinge allows the boot lid to be raised,
while devices such as springs or gas cylinders hold it up in the open position The Backdoor
is an assembly of many parts such as inner panel, outer panel upper,
outer panel lower and Reinforcement.
Design considations for Backdoor:
* Rear visibility.
* Back space avilibility.
* Rear crash criteria.
* Manufacturing fesibility.
* Stress consntration of sheet.
*Tooling direction for stampping or pressing parts.
Operations involved to produce a Backdoor:
* Shearing Operation
* Blanking & Fine Blanking Operation
* Punching Operation
* Piercing Operation
* Perforating Operation
* Slotting Operation
* Notching Operation
* Bending Operation
Parts of a Backdoor and - Thickenss given(in MM):
1) Outer panel Upper - 0.75
2) Outer panel Lower - 0.75
3) Inner pannel - 0.75
4) Hinge reinforcements - 1.50
5) Gas stay reinforcements - 1.50
6) Wiper motor reinforcements - 1.50
7) Stricker Mount reinforcements - 1.50
Parts Descriptions with Images.
1) Outer panel Upper
2) Outer panel Lower
3) Inner pannel
4) Hinge reinforcements
5) Gas stay reinforcements
6) Wiper motor reinforcements
7) Stricker Mount reinforcements
Assembly of Backdoor:
types of tests done on backdoor:
1) Bend test
2) Torsion test
3) Abuse test
4) Dent test
5) Assembly load case
6) Endurance test
Draft analysis of all parts:
1) Outer panel Upper
2) Outer panel Lower
3) Inner pannel
4) Hinge reinforcements
5) Gas stay reinforcements
6) Wiper motor reinforcements
7) Stricker Mount reinforcements
