Week 9 - Challenge 2 - Switch Bezel Design

TITLE : TO CREATE PLASTIC MODEL IN CATIA V5 AS PER THE GIVEN CLASS À SURFACE (SWITCH BEZEL )

INTRODUCTION :-

IN THIS ASSIGNMENT WE FOCUSS ON PLASTIC DESIGN PROCESSES WHICH FOLLOW BY AUTOMOTIVE INDUSTRY. WE HAVE SWITCH BEZEL SURFACE WHICH GIVEN BY THE INSTITUTE AND THE BEZEL SURFACE WE WILL CONVERT IN THE 3D PLASTIC MODEL WHICH HELP FOR PRODUCTION. WE USE CLOSE SURFACE METHOD TO MAKE PLASTIC 3D MODEL. WE ANALYSE TOOLING AXIS AND DRAFT ANGLE OF THE SWITCH BEZEL.

OBJECTIVE :

1 AS PER THE GIVEN CLASS A SURFACE OF SWITCH BEZEL WE CREATE 3D MODEL FOR PLASTIC PRODUCTION WITH USING SURFACE COMMANDS

2. CLOSE SURFACE MODEL MUST BE COVERTED IN TO SOLID MODEL

3. CREATE TOOLING AXIS FOR BEZEL

4. DO DRAFT ANALYSIS OF MODEL OF SWITCH BEZEL AND ANGLE MUST BE MORE THAN 3 DEGREEE.

THEORY PORTION FOR PLASTIC

STEPS FOR MAKE PLASTIC 3D MODEL

1.INSERT CLASS A SURFACE - DESIDE TOOLING AXIS (FROM THIS AXIS WE CAN SEE ALL SHAPE ON THE SURFACE AND EASY FOR MAKING )

2. AS PER THE CLASS A SURFACE WE MAKE PLAN TO PRODUCE MODEL (AS PER THE SECTION AND SHAPE WE DESIDE PLAN OF MODEL)

3.AFTER THAT WE EXTRECT SURFACE- UNTRIM SURFACE- DO OFFSET AS PER THE THIKNESS (2.5MM) --- CREATE B SURFACES

4.C SURFACE - IT SHOW THIKNESS OF PART SUCH AS 2.5MM FOR BASE BRACKET

5.AT THE END WE JOIN CLASS A, CLASS B AND CLASS C SURFACES

6 CLOSE SURFACE WE CONVERT IN TO THE SOLID MODEL

7.DO DRAFT ANALYSIS OF SOLID MODEL OF SWITCH BEZEL (THE DRAFT ANGLE MUST BE MORE THAN 3 DEGREE --- WE ALSO SELECT LESS THAN 3 DEGREE BUT IT MAKE DEFFICULTY FOR PRODUCTION AND COST IS INCREASE)

NOTE :- FOR FILLET - UPPER SIDE FROM THE CLASS A - (THIKNESS (- OR +) RADIUS = FILLET VALUE) EX.- 14 - 2.5 = 11.5

LOWER SIDE FROM CLASS A - (RADIUS + THIKNESS = FILLET VALUE ) EX;- 14 + 2.5 = 16.5

WE DO THIS BECAUSE WE MUST MAINTAIN DISTANCE BETWEEN CLASS A AND B SURFACE .

3D MODELS IMAGES :

1.BASE BRACKET MODEL

THIS IS THE PHOTO (SURFACE ) WHICH IS GIVEN BY THE INSTITUTE

TOOLING AXIS

ISOMATRIC VIEW

FRONT VIEW

SIDE VIEW

TOP VIEW

SOLID PART

DRAFT ANALYSIS OF BASE BRACKET

SOLID MODEL IS FAIL BECAUSE IT IS NOT FOLLOWING MINIMUM DRAFT ANGLE WHICH IS 3 DEGREE .

WE CHANGE TOOLING AXIS FROM 3 DEGREE TO 90 DEGREE BUT IT IS MAINTAIN 2.2 DEGREE.

CONCLUSION

OVERALL , WE HAVE SEEN HOW TO MAKE 3D MODEL FOR PLASTIC PRODUCT. WE MADE SWITCH BEZEL USING SURFACE COMMAND IN CATIA V5 AND CREATE TOOLING AXIS AND DRAFT ANALYSIS. AS PER THE DRAFT ANALYSIS ANGLE OF MODEL IS LOWER THAN 3 DEGREE, SO IT IS FAIL AND MAKE DIFFICULTY FOR PRODUCTION. THEREFOR, CLASS A SURFACE OF SWITCH BEZEL IS SENT TO THE SURFACING TEAM TO REMAKE THE SURFACE AND NEXT TIME CLASS A SURFACE MUST BE FOLLOW THE DEGREE RULE (MORE THAN 3 DEGREE) .