Fender Design
FENDER DESIGN:
OBJECTIVE:
In this project we are going to design the mounts for the Front fender such as drip, sill, bumper, A-pillar, cowl and baffle for this we are going to design mounts.
INTRODUCTION :
Design of any product starts from an requirement . The design engineer sketches the product based on the the requirement . Then the 2D sketch with the proper dimensions is converted into the 3D model using the advanced CAD software's . The another important thing in the design is that , every product that is designed should be able to manufactured . so the role of the design engineer is to design the product that can be easily manufactured and with less cost effective . This is the place where the Design for manufacturing [DFM] and Design of assembly [DFA] takes a role while developing any product . The process of development of design carries on until the design satisfies the customer needs .Here in this project the product that we are going to develop is a car fender.
DESIGN OF CAR FENDER
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.
There are two types of fenders , they are
1) full bumper type
2) half bumber type
MOUNTING
- Bumper
- Drip
- A Pillar
- Sill
- Cowl
Data given for Designing Fender
There are 5 mounting regions on the fender , they are
- A- pillar mounting
- Body mounting
- Sill mounting
- Bumper mounting
- Drip mounting
MASTER SECTION
DESIGN 0F DRIP AREA 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 part consists pf wiper motor and its instruments
DRIP AREA
- 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
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 . M5 fasteners are used to fix the fenders on the sill body.
SILL MOUNTING
DESIGN OF BUMPER MOUNTING AREA :
Bumper mounting area is used to fix the plastic bumper to the fender with the help of the fasteners
BUMPER MOUNTING
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 .
A-PILLAR MOUNTING
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 :
FEATURES/TOOL USED:
- SKETCH
- OFFSET IN FACE
- CURVE ON SURFACE
- BRIDGE CURVE
- EMBOSS
- TRIM SHEET
- LAW EXTENSION
- FACE BLEND
- EDGE BLEND
- DART
- THICKEN
CONCLUSION :
Finally design of fender is done with the help of NX-CAD software by following the master section