Design of backdoor

BACK DOOR DESIGN using NX

Objective-

To develop the car backdoor by using given surface method by automotive sheet metal design using NX.

Introduction-

The trunk or boot of a car is the vehicle's main storage or cargo compartment it also have a hatch at the rear of the vehicle. It is also called a tailgate.These doors can be operated manually or

electric powered. here we design the trunk or back door using the NX.The Backdoor is an assembly of many parts such as inner panel, outer panel upper, outer panel lower and Reinforcement.

Inner panel is attached to the outer panel using mastic sealant.

Types of doors based on working position

1. Top Mounted Door
2. Side mounted Door
3. Bottom Door

Design parameters-

Parts in Backdoor are-

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

Door parts thickness-

1. Outer Panel - 0.75 mm
2. Inner Panel - 0.75 mm
3. Reinforcements - 1.5 mm

Commands and tools used-

• Emboss
• Law of extension
• Extend sheet
• Trim sheet
• Curve on surface
• Swept
• Bridge curve
• Thicken
• Mirror geometry
• Sew
• Draft analysis
• Edge blend
• Face blend
• Corner blend

Nx design-

Back door outer panel upper-

Relief points-

Back door outer panel lower-

Relief points-

Tooling direction-

Back door inner panel-

Inner panel embosses-

Hinge Reinforcement-

Gas Stay Emboss and Reinforcement-

Latch & Stricker Emboss-

Wiper Motor Reinforcement-

Hemming-

Final Assembly-

Draft Analysis-

Conclusion-

The back door outer and inner panel are designed with the help of the styling surface along the tooling direction in NX succesfully and the Draft analysis was performed on the inner panel and All

the reinforcements were designed and placed at appropriate positions.