Design of backdoor
Design Of BackDoor:
Aim:
To Design The Backdoor Of A Car And To Make Its Inner Pannel, Outer Pannel, Reinforcements, Hemming And Draft Analysis Of BackDoor.
Car BackDoor:
The back door is a hinged door/tailgate at the Rear of the vehicle. It may be used for loading and unloading cargo, or to get passengers in and out In case there are seats present at the rear. The back door comprises of certain components which form the back door assembly together.
Types of BackDoor Based On Working:
- Top Mounted Tailgate
- Side Mounted Tailgate
- Bottom Mounted Tailgate
The Components Of BackDoor As Followed,
Inner Pannel
The inner panel, as the name suggests, is the inner part of the door. It is where most of the reinforcements and components are mounted. It is manufactured either by casting (aluminum) or sheet metal stamping (steel). Thickness of inner pannel is 0.75 mm.
Outer Pannel
It is the outer part of the rear door and is mostly responsible for aesthetics of the vehicle. Outer and inner panels are connected by mastic sealants in center and by hemming process at edges. The outer door handle and in some cases, the number plate may also be installed on the outer panel of the back door. We have considered a 2-part outer panel for our design, Outer upper pannel and outer lower pannel. Outer panel is manufacture by stamping sheet metal. Thickness for outer panel is 0.75 mm.
Reinforcements:
Reinforcements are provided to provide support and add extra material to the sheet metal part to increase its strength near component installation regions and minimize the impact of collisions. We have considered following reinforcements during our design. The reinforcements maybe manufactured by stamping. Thickness of all reinforcements is 1 mm.
Wiper Mounting Reinforcement
Hinge Reinforcement
Gas Stay Mounting Reinforcement:
Latch And Stricker Reinforcement:
Hemming Process:
Tooling Direction:
we need to define the tooling direction as a reference for manufacturing team. Then we design the inner panel.
Latch And Stricker Path:
Reinforcements Of Back Door:
Draft Analysis:
In order to make sure the drawing of inner panel body is proper; we do draft analysis. We need to define the drawing direction and select the inner panel body. We take limit angle as 5 degrees. The result of the draft analysis is,
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Views of Assembly:
Conclution:
The Backdoor Was Designed By Given Styling Surface And Followed The Tooling Direction And Given Design Regulations.