Design of backdoor
BACK DOOR:-
An Automobile Back Door is the important Panel of the Car which gives access to the Boot space of the car in which we can keep our luggage. It is the assembly of the different parts which are as follows.
1) BACK DOOR OUTER PANEL UPPER
2) BACK DOOR OUTER PANEL LOWER
3) BACK DOOR INNER PANEL
4) HINGE REINFORCEMENT
5) GAS STAY REINFORCEMENT
6) WIPER MOTOR REINFORCEMENT
7) LATCH REINFORCEMENT
A) BACK DOOR INNER PANEL:- It is the main supporting structure of the Back door with different embosses such as hinge embosses, gas stay embosses, wiper motor emboss, and latch emboss.
HINGE EMBOSS:-
GAS STAY EMBOSS:-
WIPER MOTOR EMBOSS:-
LATCH EMBOSS:-
DESIGN METHODOLOGIES:-
Initially, we require the tooling direction according to that we deep draw the sheet.
Tooling Direction
1) DEEP DRAWING:-
It is the process in which we keep the desired material(sheet) in between the drawing tool i.e. Punch and Die and punch presses the sheet against the die. There must be some draft angle for the easy removal of the component.
To increase the strength of the part we give the embosses on it and we provide embosses in such a way that if there will be any impact on the car the force will get diverted toward the hinges and outside of the car.
2) EMBOSSING:-
It is the process in which the surface gets raised by pressing against it.
3) TRIMMING:-
It is the process in which the excess part gets cut off from the desired part so that proper shape can be maintained.
4) PUNCHING:-
It is the process in which the required hole is pierced into the material so that we can use it for assembling the different parts.
Back Door Inner Panel
B) BACK DOOR OUTER PANEL UPPER:-
It is the outer styling surface so we can not join it to the inner panel by welding or fastening process so we use hemming and mastic seals to join it.
There is also space for the windshield glass and tale lamp.
HEMMING:-
It is the metalworking process in which a sheet metal edge is rolled over onto itself so that a safe and good surface can be formed.
MASTIC SEALS:-
These are used to connect outer and inner panels because we can not use welding and fastening processes here which can reduce the good appearance of the car and also reduces the vibration and noise between the upper and lower panel.
The red circled portion is for mastic seals.
C) BACK DOOR OUTER PANEL LOWER:-
It is the outer surface that is used for number plate mounting and it is also joined to the inner panel by hemming and mastic seals.
REINFORCEMENTS:- These are the different components that are required for the complete assembly of the final product.
DRAFT ANALYSIS:- It is a process by which we can insure that the component has a positive draft so that there will be proper removal of the component from the Die and it is shown by the green color in the NX software, and the parts with negative draft are shown by blue and red color so that we can change the draft angle to positive.
In this way, we have completed our BACK DOOR DESIGN