Design of backdoor

OBJECTIVE :

      To develop the car back door  using given styling surface method by automotive sheet metal design

INTRODUCTION 

The Back Door of a car is the rearmost part of the vehicle which gives access to the trunk space of the vehicle. The rear door also supports the reinforcements and added weights of the Wiper Motor, Gas Stay, Tail Lamp, and Latch and Striker.

 The material used for door manufacturing depends on the budget and performance of the vehicle. Mostly Aluminium and Steel will be used whereas low-budget vehicles use Steel which makes the manufacturing process easy and cost-efficient since it follows the Stamping of Moulds.

IMPORTANCE OF BACK DOOR 

• Back door is an important design component used in automotive vehicle. Since, it provides protection and covering for the back side of the vehicle. Design characteristics of the back door plays a very important role in terms of safety and luggage storage capacity of the vehicle.
• BACK DOOR DESIGNING 
• Main components of back doors are 

• Outer panel upper
• Outer panel lawer 
• Inner panel 
• Latch and striker reinforcement 
• Hinge reinforcement 
• Gas stay reinforcement
• Wiper motor reinforcement 

SNAPSHOTS OF THE DRAWINGS ARE ATTACHED BELOW 

BACK DOOR INNER PANEL

• Inner door panel is a component which is use for strengthening the door assembly and it is one of the most important components on witch all accessories are mount like hinges, glass guide channel.

INNER PANEL RUBBER BEEDING FLANGE 

Use of rubber beedings in dicky door : 

Rubber beadings are used in car doors to protect the car body from water damage. Door Seal or window seal rubber beadings prevent water and dirt getting inside, causing damage or rust while at the same time eliminate drafts and wind whistles.

SIDE INNER PANEL CONNECTING FLANGES 

WINDSHIELD GLASS FIXING AREA 

MASTIC SEALENT 

         The mastic sealant is used to fix the inner panel with the outer panel which increases the NVH factor and stiffness of the back door.

BACK DOOR OUTER PANEL AND INNER PANEL 

DRAFT ANALYSIS

• The draft analysis will be performed for the tooling direction created at first and checked that the model is suitable for manufacturing.

• Then to get a complete green portion the necessary changes to the draft angle of the embosses were carried out by optimizing the model.

• The Draft Analysis command enables us to detect that the part drafted will be easily removed or not.

• This type of analysis is performed based on color ranges identifying zones on the analyzed element where the deviation from the draft direction at any point, corresponds to specified values.

CONCLUSION 

             Thus the Body In White Back Door of a car was designed following the engineering standards and also the deep drawing requirements were satisfied.

NOTE: Size of the inner panel part is too big hence providing the google drive link 

https://drive.google.com/file/d/16CSZTc4Eljv2F4KzTMgUz6MzH5Le8uI1/view?usp=drive_link