Door Trim Lower

Door Trim Lower with Engineering Features Creation of a closed surface body and DOG HOUSE & HEAT STAKES & LOCATOR by using a given Door Trim stepfile (class A)

Aim: To Create the Door trim lower component through the given Class-A surface.

Objectives:

• Creation of Tooling axis with appropriate draft angle.

• Creation of other surfaces (eg, B and C surfaces) for creating a solid component. • Perform Draft analysis on Class A surface and Solid model hence created.

• Steps requried to complete the closed body surface

1. Import the given door trim step file (Class A).
2. Creation of a tooling axis.
3. Perform draft analasys for class A surface.
4. Creation of a class B surface.
5. Creation of class C surface.
6. Create a combine Class ABC surface.
7. Changing the class ABC surface into a solid surface.
8. Perform draft analasys for a solid surface.
9. creation of a DOG HOUSE & HEAT STAKES & LOCATORS

• Screenshots of the given design in various orientations (Isometric, Front, Side, and Top View)

• draft analasys for class A surface

• Finel component

A detailed steps for creation of a closed body by using a surface :

Major tools used for this:

• EXTRACT
• UNTRIM
• OFFSET
• EXTRAPOLATE
• BOUNDARY
• SWEEP
• JOINT
• CLOSED SURFCE

1.EXTRACT: this tool helps to project the surface which you selected in the object that will comes a duplicate as a surface.

2.UNTRIM: this tool helps a object which you extract is there any holes or any corner shapes that eill be rempoved and create a base surface as(rectangle...etc)

3.OFFSET: this tool will helps which a surface you selected that will present at a certain height from a real object

4.EXTRAPOLATE: this tool will helps to provide an additional support from the surface and extend the faces ehich we selected

5.BOUNDARY: this tool will helps the project the object boundary into a plane as it is

6.SWEEP: this tool helps the selected boundary will extrude along certain angle or you will define the tool which you want and along the direction that will be extruded

7.JOINT: this tool help the joint the all surfaces into a one surface.

8.CLOSED SURFACE: this tool is present at a part design app in that and it will change a hallow part to solid part.

METHODOLOGY:

• Steps requried to complete the closed body surface

1. Import the given door trim step file (Class A).
2. Creation of a tooling axis.
3. Perform draft analasys for class A surface.
4. Creation of a class B surface.
5. Creation of class C surface.
6. Create a combine Class ABC surface.
7. Changing the class ABC surface into a solid surface.
8. Perform draft analasys for a solid surface.

By the above mentinoned steps we can fallow to complete a closed surface body of a door trim .which we have been normal to surface whare which a core and cavity will ejected without disturbances.

1.Import the given door handle step file (Class A):
from the above mentioned various files we can select a step file of a door trim and click on download then open catia v5 appilication and top left side click files and open the base braket file.and that will called as a Class A.

the door trim will opens like a below shown fig.

then start working on that by fallow the steps which we have above mentioned.

2.Creation of a tooling axis:
Select the class A surface right click on it and select reframe on it and rotate the door trim which view we want and select a point and click on an of it plane and ok. then create a line which is passing through the created point up to certain distance then the direction of line to be along z-axis and click on ok .then that line will be called as TOOLING AXIS.

the tooling axis will be shown below

the centre yellow line is nothing but a tooling axis.

3.Perform draft analasys for class A surface:

Which a draft analasys is nothing but a how much angle we requried to make a core and cavity with a secific geometric toolearence and that values should be comes under a draft analasys. first go to insert and click on analasys and select draft analasys and move the compass into the tooling axis and select compass on analasys tab adjust the compas and lock the direction of a compass and click on object then that will show the inclination about tooling axis and we also edit the requried angles which we want and that would varey the colours then the draft angle should be less than that the requried angle.hence the value should be noted for creation of a class C surface.it's about a Draft analasys. since the part get some blue in colour that indicates our given part is wrong then we need to change the design for this we can continue.

Draft analasys:

colour green which is indicates the safer angle to minimise the disturbances through requried draft angle.

4.Creation of a class B surface:

Class B is nothing but a down ward surface of a base bracket which we can see through the down ward direction to create it we can used some of tools like (OFFSET&MULTI SECTION SURFACE,EXTRAPOLATE...etc) by using those tolls we can create the class B surface like same as a class a but small angle will be changed that is called as a draft angle.

class B surface:(with extra portion which is needed to trim).

this is a class B surface which is offset from class A at a distance of 2.5mm.

5.Creation of class C surface:

Class C which is a closed part which is joining a class a and class b the middle part of the part is called class C. by creation of a class c surface we need to use the class A surface and use some tools for ex...(BOUNDARY,EXTRAPOLATION,SWEEP.....etc)by the use of those tools we can complete the base bracket at a simple then the class C surface will be created then by useing a joint tool we can connect the all ABC surfaces at a one part.

Class C surface:(3degree of draft angle is provided in outer edges)

then unhide all class A and class B then joint each other

6.Create a combine Class ABC surface:

by using a TRIM tool we can separate the closed part from the ABC surface and it will be at a shape of door handle and inside of it will be hallow in nature then the final ABC surface eill be created .

the above part is nothing but a class ABC surface (closed surface) and inside it will be hallow

7.Changing the class ABC surface into a solid surface:

from the surface design we need to change it to a drafting part then we need to move a perticular model into a solid part then open the part design interface and there will be find out a tool called CLOSED SURFACE click on that and ok. then the part will be changed into a solid shape then hide the class ABC surface then priview the finel part.and this will our solid part.

Closed surface:

and this will be our final part and perform once again a draft analasys whrther it is correct or not.

8.Perform draft analasys for a solid surface:

by fallow the same above step 3 and perform draft analasya for a closed surface of ABC and get the final results is it correct or not and suitable for a creation of core and cacvity.the draft analasys may be fallowed by putting an angle of 2.9deggrees.

Draft analasys:

the colours may shows the results under a small tab on below right side.

Then the solid part will be completed by fallow these steps and process.then we need to create a ribs and screw bosses for that closed part.

• STEPS FOR CREATION OF DOG HOUSE AND HEAT STAKES & LOCATORS

1. Use position sketch to draw the structure the profile
2. Pad the profiles with requried dimenshions
3. Draft the profiles with a min draft angle
4. join the profiles to a part body and trim un nessary portions
5. give edge fillet to the edges of a profile
6. perform draft analasys for the profiles

same procedure for the all the master section profiles also and only sketches will be changed and a min draft of 0.5 will placed.and perform draft analasys for profiles (heat stakes & locators).

• DESIGN COSIDERATIONS FOR DOG HOUSE

by fallow the rules and design the HEAT STAKES structure for a door trim.

• DOG HOUSE

• DESIGN COSIDERATIONS FOR SCREW BOSSES & HEAT STAKES

by fallow the rules and design the rib structure for a Door trim.

• SCREW BOSSES & HEAT STAKES 1.LOCATOR

And give the relation between HEAT STAKES and screwbosses to a door trim and perform draft analasys on that.

• DRAFT ANALASYS OF A FINAL PART

this is the finel part model with a dog house and heat stakes and locators.

this is about the part model design with a detailed steps

CONCLUSION:

Hence the creation of a closed surface body AND (DOG HOUSE & HEAT STAKES & LOCATORS) by using a given door trim and perform a draft analasys sucessfully.