Week 12- Final project
Final project
FINAL PROJECT
DOOR TRIM PANEL -MAYANK TIWARI
AIM - Creation of CAD model considering following inputs as like in OEM and tier1 companies.
- Class A surface
- Nominal thickness
- Attachment strategy
SOFTWARE USED - CATIA V5
OUTPUT REQUIRED -
- Create a sketch by using Positioned sketch
- All the should be sketches should be Iso-Constrained
- Ensured Proper Tree Structure
- Geometrical sets should having a proper name based on the sketches present inside of it
- Create thickened part using master section for reference
- Create the mounting features as per design guidelines in the industry and with master sections
- Draft analysis & Tooling analysis
- Creation of parting lines and check tooling feasibility
MAJOR STEPS INVOLVE IN CONSTRUCTION OF FINAL RESULT :
[SINCE THE INPUT CLASS-A OF GIVEN DOOR TRIM PANEL CONSIST OF FOUR MAIN PARTS NAMED AS,LOWER SUBSTRATE,MAP POCKET,ARM REST,BOTTLE HOLDER,SO WE WILL BE WORKING DIFFERENTLY ON THERE CLASS-B,C CREATION,TOOLING AXIS CREATION ,DRAFT ANALYSIS ETC , FOR ALL FOUR IN SEPERATE CATPART FILE .ATLAST ALL FOUR CATPART FILE WILL GET ASSEMBLED IN ONE CATPRODUCT ASSEMBLY FILE]
STEP 1. CHECKING CONTINUITY OF GIVEN CLASS-A.
A) ARM REST
AS THERE IS DISCONTINUITY IN THE GIVEN CLASS-A,THATSWHY IT IS SHOWING TWO DOMAINS OF CURVE AFTER DISASSEMBLING THE BOUNDARY.
B) LOWER SUBSTRATE
AS THERE IS NO DISCONTINUITY ,THEREFORE IT IS SHOWING ONLY SINGLE DOMAIN OF CURVE.
MAP POCKET
AS THERE IS NO DISCONTINUITY ,THEREFORE IT IS SHOWING ONLY SINGLE DOMAIN OF CURVE.
BOTTLE HOLDER
AS THERE IS NO DISCONTINUITY ,THEREFORE IT IS SHOWING ONLY SINGLE DOMAIN OF CURVE.
STEP 2. CLASS-A IMPROVIZATION
ARM REST
BOTTLE HOLDER
[LOWER SUBSTRATE & MAP POCKET CLASS-A DOES NOT HAVE ANY DISCONTINUITY]
STEP 3. TOOLING AXIS CREATION
Procedure for Tooling axis creation
- Check the best possible tooling direction by manually adjusting the compass.
- By analysing it is found that y axis as tooling direction would clear most of the faces without any difficulties.
- Now extract any surface and create a mid-point on it.
- Then create a dummy axis creating a line on the point and direction along the y axis.
- Perform draft analysis to find whether the given axis clearing the draft analysis. If not create a new tooling axis.
ARM REST
LOWER SUBSTRATE
MAP POCKET
BOTTLE HOLDER
STEP 4. CLASS-A DRAFT ANALYSIS
IN ANY COMPONENT, DRAFT IS GIVEN AS TO EASE IT'S EJECTION FROM MOULD.
MIN DRAFT FOR PLASTIC COMPONENT IS - 3 DEG
FOR DOG HOUSE MIN DRAFT IS 1.5 DEG FOR OUTER WALLS & 0.5 DEG FOR INNER WALLS
FOR HEAT STAKES & LOCATORS 0.5 DEG FOR INNER & OUTER WALLS
ARM REST
LOWER SUBSTRATE
MAP POCKET
BOTTLE HOLDER
STEP 5. CREATION OF CLASS-B & C SURFACE
ARM REST
CLASS-B
CLASS-C
FINAL TRIM OF CLASS-B WITH A & C
LOWER SUBSTRATE
CLASS-B
CLASS-C
FINAL TRIM OF CLASS-B WITH A & C
MAP POCKET
CLASS-B
CLASS-C
FINAL TRIM OF CLASS-B WITH A & C
BOTTLE HOLDER
CLASS-B
CLASS-C
FINAL TRIM OF CLASS-B WITH A & C
[AFTER THIS WE WILL CREATE SOLID BODY OUT OF ALL THE FOUR CLOSED SURFACE ,IN PART WORKBENCH USING CLOSE SURFACE OPTION,& WILL FURTHER MOVE ONTO CREATION OF B-SIDE FEATURES]
STEP 6. CREATION OF B-SIDE ATTACTHMENT FEATURES
A) DOG HOUSE
B) HEAT STAKES
C) LOCATORS
D) FLANGES
CREATE A FLANGE FOR ATTACTHMENT OF HEATSTAKES & LOCATORS AT LOWER SUBSTRATE
STEP 7. CREATION OF PARTING LINE
STEP 8. FINAL BODY DRAFT ANALYSIS
ARM REST
LOWER SUBSTRATE
MAP POCKET
BOTTLE HOLDER
# TREE STRUCTURE
ARM REST
. 
. 
LOWER SUBSTRATE
MAP POCKET
BOTTLE HOLDER
# MODEL IN VARIOUS ORIENTATIONS
# CATPART & CATPRODUCT FILE IS ATTACTHED BELOW