Fender Design

AIM : To design the mountings on the different sides of the fender skin given by the aesthetic developer.

objective : The aesthetic part fender wheel is given on that we got know how to place the mountings on drip area, bumper area, buffel area and the Sil areas and to create the emboss on the flat surface to mount other components inside the car.

Introduction to fender:

A fender is the part of a car, truck, motorcycle, or other vehicles that frames or covers a wheel well. Its main purpose is to prevent debris, rocks, mud, liquids, sand, and other road debris from getting thrown in the air while the tires rotate.

The “fender” typically refers to the front panel that covers the front wheels, and the “quarter panel” typically refers to the rear panel that covers the wheel that also includes the roof pillar.

The fender car part is the body kit or body part installed on the left and right sides of the vehicle. Manufacturers usually attach fenders to the wheel arches. There are different reasons why they are a requirement in vehicles. One obvious reason is to improve the aesthetics of the vehicle.

Fenders also enhance the car’s aerodynamics. They also prevent mud, sand, rocks, liquid, and all sorts of debris from being thrown in the air while you’re driving your car.

Functions of the fenders:

• Cleanliness
• Safety
• aerodynamics flow

TYPES OF FENDERS:

there are two types of fenders:

1. Full bumper type Fenders

2. half bumper type fenders

Img): point of view of full bumper fender

1. Full bumper type fender:

In the earlier days the full type bumper is going to manufactured. in this type bumpers the scrap produced is more because in manufacturing the amount of material increases although the cost of manufacturing will increase and the body weight incrases by using steels or alluminium for the production of fenders.This extension of material usage in bumpers might increase the proportion of weight and consequently reduce the performance of vehicle. Nowadays plastic material components are in use for bumper making. Plastics have high tendency in absorbing the shock and impact loads.

2. Half bumper type fender:

These types of fender are smaller in length and are used in present generation of vehicles. the drawback in full type fender can be solved in this type fender, as it less material and enhances the performane of auto mobiles.

Advantages of hald bumper type fender

1. Lower weight

2. Less cost

Designing of fender:

There are 5 mounting regions on the fender , they are

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

Mounitngs helps to mount the fender on different regions.

Master section to create the Drip Area:

Desingning of Drip Mounting:

• It is the important mounting uni 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 consist of viper motor and side seals.

• Two Darts are provided to strengthen the drip area by clamping it over the corners.
• Embossing are provided on the mounting to strengthen them during fastening.

Designing of the Bumper Mounting:

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

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

Designing of Sill Mounting:

Sill mounting is the region where the bottom of the running board will be mounted with reinforcements of the sill mounting area.

in the case fasteners are placed in according to the holes given on embossing area where the M5 fasteners are fitted along bottom

side of the car.

Designing of A-Pillar mounitng:

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 the thicken for fender:

• Thickening is to be done with 0.75 mm of the standard rules followed by the industries

different views of fender:

Manufacturing process:

Extrusion:

It is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of the desired cross-section. Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive and shear stresses. It also creates excellent surface finish and gives considerable freedom of form in the design process.

Drawing:

Drawing is a Metal working process that uses tensile forces to elongate metal, glass or plastic As the material is drawn (pulled), it stretches and becomes thinner, achieving a desired shape and thickness. Drawing is classified into two types: sheet metal drawing and wire, bar, and tube drawing. Sheet metal drawing is defined as a plastic deformation over a curved axis. For wire, bar, and tube drawing, the starting stock is drawn through a die to reduce its diameter and increase its length. Drawing is usually performed at room temperature, thus classified as a cold working process; however, drawing may also be performed at higher temperatures to hot work large wires, rods, or hollow tubes in order to reduce forces