Fender Design

OBJECTIVE- To Design of fender, Drip area using given master section and Silk, Bumper, Buffle and A-piller mount area accordind engineering consideration.

Introduction- Fender is outer side member of car which covers the wheel of the car. It is the closer component, closing the engine compartment and other component. It is protect predestian and engine compartment from mod, chipping, stone comming from wheel running due to centrifugal action. Fender are plastic part typicaly rigid and can be damage by contact with road surface. It is also called mudguard.

Type of fender- Basicaly two type of fender 

1. Full bumper type - Today in this type fender not use becouse it has long size and shape and large scap also produce.

                                    

   2. Half bumper type - Today and future this type fender are use becouse compact shape and size and less crap is prod                                                                                       

Area Considertion of Fender design- 

1. Drip Area
2. Bumper mounting area 
3. Silk area
4. A-piller Area

As show below image.

                                          

1.  Drip Area - It is important part of Fender, use to join the fender with engine compartment through weldnut.                                                                                        

                

                                                                          MASTER SECTION OF DRIP AREA

• Design consideration of drip area distance from 150mm front of the fender. and 200mm or less than 300mm from rear end of the fender.
• Length of drip area is 40mm or less than 40mm. If length is more than 60mm than spring back effect is more thats why design engineer length of fender is less than 60mm.
• The inclination given 40 degree at line D to cover the gap between hood & fender to can't see fasterner area from outside
• Rib & emboss are provide to strength of fender. and reduce the vibration & noise 

              

                             

   2. A-piller area- It is the area either front side of windshield of car. It is mounted on a piller through fastener covers by outside view mirror. Create flange           30mm length at 90 inclination from spit edge of fender. Create emboss and hole for fastener.

                                

   3. Silk Mount Area- It is the bottom area of the fender joit to the door of car with fasteners. Create flange 40mm length at inclination of 90 degree from             spit edge of fender. Create emboss & hole for fasteners. 

                             

   4. Bumper Mounting Area- It is the area of fender which connects with bumper. This reasion must be rigid becouse withstand when force acting among it           during collision. Create flange 40mm length at 90 degree inclination with spit of fender. Create emboss and hole also create rib between emboss to                   improve stength 

                                                  

Other design consideration- 

• All embossed are 3mm minimum depth and are peovide apropriate fillet 
• All rib are 5mm heigth 3mm radius & 45 degree angle
• Draft 7 degree minimum.
• All fillet are approprite to fit or apply the surface
• Emboss distance & hole flate surface distance are 5mm minimun
• Blande all corners
• Thickness of sheet are 0.65mm
• All fastener hole are 5mm diameter

Conclusion :-

• Design the drip area according to given master section. 
• designe the silk, bumper and A piller mounting area according to engineering consideration.
• Design the fender all view are below.