Fender Design
INTRODUCTION:
1.FENDER IS THE US ENGLISH TERM FOR THE PART OF AN AUTOMOBILE.
2.ITS PRIMARY PURPOSE IS TO PRENVENT SAND,MUD,ROCKS,LIQUIDES AND OTHER ROAD SPRAY FROM BEING THROWN INTO THE AIR BY ROTATING TYRES.
IT HAS TWO TYPES.
3.FENDER ARE TYPICALLY RIGID AND CAN BE DAMAGED BY CONTACT WITH THE ROAD SURFACE.
FENDER:
IT IS AN AESTHATIC COMPONENET OF A CAR THAT FRAMES THE WHEELS.PREVENTION OF SAND,MUD AND OTHER ROAD CONTAMINANT FROM BEING THROWN INTO THE ENGINE COMPARTMENT AND ALSO TO THE PEDESTRAINS BY THE ROTATING TIRES ARE THE MAIN PURPOSE SERVED THE FENDER.
1. FULL BUMPER
FULL BUMPER TYPE IS TRADITIONAL TYPE OF FENDER WHEREBMORE MATERIAL CONSUMPTION IS OBSERVED.THIS TYPE IS USED IN OLD DESIGN OF AUTOMOBILES WHERE IT INCREASES THE OVERALL WEIGHT AND THUS REDDUCES PERFORMANCE.
2.HALF BUMPER
HALF BUMPER TYPE IS MODERN DESIGN WHERE LESS MATERIAL CONSUMPTION IS OBSERVED.SO PRODUCTIVITY INCREASES BY REDUCING SIZE OF BLANK AND THUS PROVIDING MORE PERFORMANCE.THE MAINTINENCE ALSO RELATIVELY LOW COMPARED TO FULL BUMPER TYPE.
THERE ARE FIVE MOUNTING POINTS TO FIX FENDER
1.DRIP AREA
2.BUMPER MOUNT
2.SILL MOUNTING
3.A-PILLAR MOUNT
4.COWL PORTION MOUNT
5.BAFFLE MOUNT
MANUFACTURING PROCESS:
METAL STAMPING MANUFACTURING PROCESSES CAN QUICKLY AND CLEANLY CREATE SOLID METAL PARTS AND FORMS.THE PROCESS USES SPECILIZED DIES THAT PRESS SHEETS OF METAL INTO PRECISELY THE RIGHT FORM.
THERE ARE SEVERAL STAMPING PRESS USING DIFFERENT MECHANISM
1.MECHANICAL PRESS FOR STAMPING
2.HYDRAULIC PRESS FOR STAMPING
MATERIALS: ALUMINIUM,COPPER,STIANLESS STEEL,STEEL AND ALLOYS
DESIGN CONSIDERATION:
FOR THE FENDER DESIGN WE NEED TO IMPORTED THE FENDER SKIN DATA,MASTERSECTION WHICH WE NEED TO FOLLOW.
DRIP AREA:
THIS IS THE MOST IMPORTANST MOUNTING UNIT ,DRIP AREA GOING TO BE MOUNT ON THE ENGINE COMPARTMENT AND IT HAS TO BE FOLLOW LOT OF DESIGN CONSTRINTS WHILE DESIGNING DRIP AREA.WHLE DESIGNING DRIP AREA WE NEED TO MAINTAIN PROPER GAP WHICH SHOUDN'T VISIBLE FOR HUMAN EYE.
FENDER CLASS A MODIFICATION PROCEDURE IN CATIAV5:
FIRST WE HAVE TO EXTRACT THE ENTIRE SURFACE,TAKE JOIN COMMAND SELECT SUBELEMENTS TO REMOVE ,SELECT ALL THE FILLETS REMOVE OK.AFTER THAT TAKE AN UNTRIM OPTION THE ORIGIONAL SHEET WILL APPEAR ,THEN EXTRAPOLATE VERTICAL SURFACE TO CREATE AN EDGE AND THEN UNTIM IT.GIVE 5MM RADIUS TO CREATE FILLET.
NOW ENTIRE SINGLE BOUNDARY FENDER IS FORMED.NOW WE HAVE TO CREATE THE MOUNTING BASED ON GIVEN MASTER SECTION.
DRIP AREA PROCEDURE:
FIRST TAKE PARLLEL CURVE WITH 5MM AND CREATE POINTS ON PARLLEL CURVE ,SURFACE OF FENDER.TAKE SPLINE OPTION MAKE SPLINE B/W THOSE LINES AND SPLIT THE EXCESSIVE SURFCE .NEXT FOLLOW THE MASTER SECTION USE THE TOOLS LIKE SWEEP LINE WITH DRAFT ANGLE ,OFFSET,TRIM REMOVE AND CREATE PROPER SHAPE.
THE MOUNTING AREA WILL CREATE BY DRAW A SKETCH AND SWEEP WITH DRAFT DIRECTION AND OFFSET THE SURFACE ,TRIM IT THEN JOINT ALL THE SURFACES ADA APPLY EDGE FILLET.
THE PROCEDURE WILL BE THE SAME IN ALL MOUNTINGS.
DESIGN OF THE 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 SILL MOUNTING POSITION IS DESIGNED WITH HOLES AND EMBOSS.M5FASTNERS ARE USED TO FIX THE FENDERS ON THE SILL BODY.
DESIGNING OF THE A-PILLAR MOUNTING AREA:
THE A-PILLAR IS THE STRICTURAL PILLAR THAT COMBINES THE BODY ROOF.THIS MAKE THE SIDES OF THE WINDSHIELS REST.
FRONT FENDERS ARE FASTENED TO THE A-PILLAR TO FROM A ROBUST STRUCTURE.
DESIGNING OF THE BUMPER MOUNTING AREA:
BUMPER MOUNTING AREA IS USED TO FIX THE PLASTIC BUMPER TO THE FENDER WITH THE HELP OF THE FASTENERS.
DIFFERENT VIEWS:
PURPOSE OF FENDER:
GENERAL APPEARENCE:
LOOKS BETTER WITH FENDER,GIVES A FINISHED LOOK,LOOKS MORE STREAMLINED.
CLEANLINES:
PROTECT THE CAR,OCCUPANTS AND PASSERS BY FROM ITEMS,WATER,MUD,SNOW,ICE,THROWN OFF THE TIRES AS YOU DRIVE.