Fender Design

FENDER DESIGN

OBJECTIVE :

The aim of these project is to design fender and the main design requirements for Drip, Bumper, A pillar and Sill mounting areas using a new age design software - NX - CAD.

FENDER :

Fender is the american english term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary propose is to prevent sand, rocks, mud, liquids, and other road spray from being thrown into the air by the rotating tire. Fender are typically rigid and can be damaged by contact with the road surface.Sticly materials, such as mud, may adhere to the smooth outer tire surface, while smooth loose objects, such as stones, can be 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 trie is rotating upward and forward, and can throw objects into the air at other vehicle or pedestrians in front of the vehicle. Fender is a front outer side member of a car, which covers the wheel side. It has so many small features with ups and downs.

USES OF FENDER :

• Car Fender limit the exposure of your car's body and engine to external elements that are harmful.
• Fender flares are attached to ensure that both the body and engine have minimal contact with corrosive elements.
• Car Fenders provides safety to the driver and the passengers at the time of accidents or collisions. They are manufactured in a way to provide bend during front and side collisions.
• Car Fenders are designed to avoid wind resistance and make your car more aerodynamic.
• Car Fender enhance the overall look of your cars. Fender flares are available in distinctive designs in the market. Mostly you find universal Fender flares, but you can get customized cars Fenders to fit your car wheels.

TYPES OF FENDERS :

1. Full Bumber type

2. Half Bumber type

• Presently we are using the half bumper type , the reason for choosing the half bumper type is that when we choose the full bumper type the blank used for creating it is very large and also has the lot of wastage , but in the case of the half bumper type we have the possibility to reduce the scrap . This is what we called as scrap management.
• In half bumper type we reduce the usage of the steel material and uses the lots of plastic on the bumper which in term decreases the cars weight and increases the performance.

MOUNTING REGIONS ON FENDER :

There are 5 mounting regions on the fender , they are

• A-Pillar mounting
• Body mounting
• Sill mounting
• Bumper mounting
• Drip mounting

MASTER SKETCH OF DESIGNING A FENDER :

DESIGN 0F DRIP AREA MOUNTING :

• It is the important mounting unit of the fender . it is connected with the engine compartment , therefore the lot of design constraints are to be followed while designing the fender.
• While designing the drip area we have to initially leave 200-300 mm for cowl top.
• For placing the headlamp we have to leave at least 150 mm at the front while designing the fender.
• Cowl top part consists pf wiper motor and its instruments.
• Two darts are added on the longer side of the drip area in order to provide the stiffness and adds strength to the part . This helps the fender to not to vibrate and impact the forces outside of the fender during motion of the vehicle.
• Embossing are provided on the mounting to strengthen them during fastening.

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DESIGN OF SILL MOUNTING AREA :

• Sill is the panel directly below the bottom of the door supporting the floor and may be used to combine the floor and the body .
• The bottom end of the fender is mounted on the sill body for reinforcement of the fender panel , thus the sill mounting position is designed with holes and emboss .
• M4 fasteners are used to fix the fenders on the sill body.

DESIGN OF BUMPER MOUNTING AREA :

• Bumper mounting area is used to fix the plastic bumper to the fender with the help of the fasteners.

DESIGN OF A-PILLAR MOUNTING AREA :

• The A -pillar is the structural pillar that combines the body to the roof . this make the sides of the windshield rest .
• front fenders are fastened to the A -pillar to form a robust structure.

DESIGN OF BAFFLE MOUNTING AREA :

• Baffle mounting or mudguard are clip fit type of mounting on the inner side of the fender arch over the Tyre .
• It protects the car engine compartment and pedestrians from causing injuries from chip out debris on the road when the car is in motion .
• they are mounted on the fender using a special type of locking clips which are made up of plastics .

APPLYING OF THICKNESS TO THE SURFACE .

• The thickness of 0.75 mm inward on the final sewed surface of the fender to the sheet metal parameters.

DIFFERENT VIEWS OF FENDER :

CONCLUSION

The front fender is designed according to the given master section and learned designed of different mountings at fender design and learnt about different commands used in NX CAD.