Fender Design

AIM :-

The aim of these project is to design fender and the main design requirements for Drip area, Bumper, A pillar and Sill mounting areas.

OBJECTIVE :-

1. To design a front fender from the given skin data and the master section provided with Drip mounting, A-pillar, Sill, Bumper and Baffle (splash) Mounts.
2. To Prepare a report by explaining about Fender Design and its different mounts , manufacturing process and its design parameters.

THEORY :-

Fender is the term for the part of an 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:

1. FULL BUMPER TYPE: These types of fenders were used in earlier models of vehicles. They contribute to the major increment of the steel weight by just covering the front headlights with respect to the bumper region. The problem associated with this kind of fender is there is a lot of wastage in the blank and every inch of a material is a cost to the industry.

2. HALF BUMPER TYPE: These fenders are mainly used for serving the purpose of cost-cutting and reducing enough proportions of the steel wait resulting in a reduction of the weight of the vehicle slightly. They can be economically manufactured, i.e by slightly increasing the blank size, we can produce two fenders at a time.

DESIGN CONSIDERATIONS:

The front fender has basically five mounting positions with respect to the other components. The mounting positions are as follows:

1. Drip Area : It is the critical mounting area located inside the engine component. Designed according to the master section provided and
   optimal opening angle is maintained to make it look well assembled from outside.
2. A-pillar area : It is located at the top area of the fender used to be mounted with the top hoop area.
3. Bumper mounting area: In half bumper fenders the bumper is connected with the bumper mounting area of the fender.
4. Sill Area: It is located at the bottom area of the fender.
5. Baffle mounting: Ist is located at the wheel arch of the fender.

1. Drip Area Mounting:

Pillar Mounting:

Sill Mounting:

Bumper Mounting:

Baffle Mounting:

CONCLUSION :-

The fender of the automobile is checked for the wheel arch radius as per European regulations and designed the front half fender of a car by following the pedestrian’s safety and in order to guard the engine compartment and beside the vehicle.