Fender Design
AIM : To design a front fender of a car by following the given master section as per the design consideration of OEM.
FENDER: It is an aesthetic component /part of a car that frames the wheel .prevention of sand ,mud particals ,and other road contaminants from being thrown into the engine compartment and also to the pedestrains by the rotating tires are the main purpose served by the fenders .
the front fenders are separate componnents the rear fenders are integrated with the body sides.
TYPES OF FENDERS:
1. FULL BUMPER TYPE:These types of fenders were used in eariler models of vechicles .they contribute to the major increment of the steel weight by just covering the front headlights with to the bumper region .The problem associated with this kind of fender is there is alot 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 os cost -cutting and reducing enough proportion of the steel wait resulting in areduction of the weight of the vechicle slightly. they can be economically manufactured ,by slightly increasing the blank size ,we can produce two fenders at a time.
there are five mounting regions on the fender ,they are
. A-pillar mounting
.Body mounting
.Sill mounting
.Bumper moumting
.Drip mounting
maetsr section are given
design of drip area mounting
.It is the important mounting unit of the fender .it is connected with the engine cpmpartment, therefore the lot of design constraints are to be followed while designing the fender
. while design the drip areawe have to intially leave 200-300 mm for cowl top
.for placing the head lamp we have to leave atleast 150mm at the front while design the fender
. cowl top part consists pf wiper motor and instruments
.Two draft are added on the longer side of thedrip 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 vechicle.
.Embossing are provided on the mounting to strenghen 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.
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 side s of the windshield rest front fender are fastened to the A pillar form robust structure.
Design of Baffel mounting area: Baffel 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 pedestrain 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 thicknes of 0.75mm.
conclusion :Thus,all mounting areas for the fender designed from skin data and master section is done by following all design rules.