Design of Car front Fender considering all design parameters

Aim:

To design the car front fender using the given master section and also design the mountin areas for the mating component considering all the design parameters

Fender is the part of an automobile, motor cycle or other vehicle body that frames a wheel well (the fender underside). Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire. Fenders are typically rigid and can be damaged by contact with the road surface.

Sticky materials, such as mud, may adhere to the smooth outer tire surface, while smooth loose objects, such as stones, can become temporarily embedded in the tread grooves as the tire rolls over the ground. These materials can be ejected from the surface of the tire at high velocity as the tire imparts kinetic energy to the attached objects. For a vehicle moving forward, the top of the tire is rotating upward and forward, and can throw objects into the air at other vehicles or pedestrians in front of the vehicle.

Types of Fender

• Full Bumper type:In this case,Only one fender can be taken as output in a singlwe stroke of deep drawing process
• Half Bumper type:In this case,two fender can be taken as output in a singlwe stroke of deep drawing process.Since the

Mounting:

There are major 5 mounting points in the fender.

1. Body
2. A Piller
3. Sill
4. Cowl
5. Drip

Study of Fender drip Area:

• It is the area through which fender is attached to engine housing through fasteners.
• There should be some consideration followed to design the drip area of fender.
• From back side of front fender, there will be 200mm clearance for cowl(wiper motor) mounting area.
• From front side of front fender, there will be 150mm clearance for head lamp housing unit.
• Remaining area we can use to design a drip area.
• Height of fender can be minimum 80mm for child and adult (94mm,WAD 1700MAX, this +14 for increase in inertial force due to accident) impact.
• Parting will minimum 5 not more than 50mm from SRL ( a reference line on HOOD side, a point on fender makes from a line of 45 degree from ground level ).
• Drip area will not reach the engine assembly due to restriction of 40mm length, so there will some L-Shaped Bracket to connect with it.

Designing of drip area :

Designing of A piller Mounting :

There are three main types of pillar when referring to the design of a car - A, B, C.

• The A pillars on your car hold either side of the front windscreen in place. They are the ones you see as you look straight at the car from the front.
• B pillars start where the driver and passenger-side windows end as you look backward along the length of the car.
• C pillars hold the sides of your car's rear window in place.
• Some cars also have a D pillar, such as estate cars for example. D pillars hold the sides of the rear window of the car in place and can also sometimes serve as a housing for the rear lights like indicators, brakes and alike.

Designing of Sill Mounting :

The mounting area at the panel directly below the bottom of the door supporting the floor and may be used to combine floor and body.

Designing of bumper Mounting :

Designing of Baffle Mounting :

Final Component:

Conclusion:

Thus the Car bumper front fender and mounting portion for the attachment component has been designed and studied the function of all the all the mounting area thus gained the knowledge of design and manufacture aspect of the cars.