Design of backdoor

AIM

design a backdoor using the provided surface

INTRODUCTION

Back door or tail gate simply refers to the back of the car that can open and close.it covering the rear of the vehicle.It provide access to a cargo area .The door or opening of a cargo area may be hinged at the top, side, or bottom.

MANUFACTURING PROCESS

Conventional tailgate assemblies are made from stamped metal panels welded together to form a tailgate. Latches are added on either side of the tailgate to engage a striker on the pickup sides. A handle operates the latches to open and close the tailgate assembly.

Metal tailgate components are generally produced in a large stamping press. The cost of tooling a metal tailgate is much more expensive.

Hemming

Hemming is a technology used by the automotive industry to join inner and outer closure panels together

4.0 BACK DOOR DESIGN

The design consideration of back door are ,

• Visibility Criteria
• Force Dissipation
• Latch and Stricker Positions
• Hinge Position
• Gas Stay Position
• Hemming and Relief Areas

PARTS OF BACKDOOR

• Back door outer panel (upper and lower)
• Back door inner panel
• Hinge reinforcements
• Gas stay reinforcements
• Latch and striker reinforcements
• Wiper motor reinforcements

1. BACK DOOR OUTER PANEL

BACK DOOR INNER PANEL

This inner panel design created by considering the force dissipation criteria.The embosses are created in such a manner that force will dissipate in to sides of the back door during a collision and prevent reaching inside the passenger cabin

trajectory

The trajectory is created to position the latch and striker .latch system must be able to catch the striker of the door the while closing. Circle is drawn from the hinge axis. The striker follow this path.

DRAFT ANALYSIS