Week 11 - Project - A pillar Design with Master Section

PROJECT REPORT

Aim - Using CATIA (CAD) software to create A pillar Design with a Master Section adding engineering features like a Dog house through the given Class-A surface and Master section.

Objective:

1. Learning how the Draft Analysis is done.
2. Understanding the concept of creating a Tooling Axis.
3. To understand how the tooling axis is created, particularly the Bisecting method.
4. To know why the tooling axis should be created for a given class-A surface.
5. To understand the mathematical calculations behind the engineering feature designs for a plastic component
6. To Learn about the side core axis & its importance.
7. To know how the master section is used to create the tooling axis with bisecting method & solid model.

Introduction: In this project, create a final thickened component by taking input as a class-A surface with mastersection.

Giving a proper tooling direction for the Drafting analysis of a component and Analysis of a class A surface. Constructing step-by-step geometry to classes A, B, C, and Final components. Then the draft analysis is done for the final product.

Hence it is a complicated surface we use the direct offset method to create a class C surface if there are any empty patches left while offsetting the surface we need to fill that patches and make it a single body.

• Design methodology Flowcharts :

• Description for Draft Analysis: Here is the procedure followed to create a Draft analysis.

Firstly create a final thickened plastic component of a given class-A surface, & analyze class A about which direction is best suitable for creating a draft direction. In this method, I created a tooling axis using bisecting methord with referance to the master section.

Drafting is done for every plastic component which is manufactured in the plastic and plastic automotive industries,

Drafting is done to eject the plastic component from the mold easily without any damage to the part and the mold.

SIDE CORE: The side core is an operation that provides a side cavity block for the component.

• To do an analysis

Give a material option in a customized view parameter go to Insert-Analysis-Feature draft analysis then you will get the draft analysis Taskbar you will see the below image.

Now, in the direction column, click on the nob, place it on the tooling axis, and then click on the lock button to lock it.

then click on the surface of class A shown in the image below.

and then click on the display second icon analysis under the running point to analyze the draft angle we got for a class-A surface.

The color indication dialog box shows the maximum and minimum draft degree the top color indicates 0 to +1 above.

and the bottom collar indicates 0 to -1 below. We can also change the draft angles and colors by double-clicking on them.

DOG HOLES: The primary function of a Dog house is to avoid sink marks and create engineering features above It instead of increasing the Ribs' height.

LOCATORS: The main function of the locators is to Arrest the degree of freedom of a component.

There are a total of 12 grigris of freedom for any component 6 are rotational, & 6 are Translation freedoms.

ANALYSIS OF A DOG HOUSE

For easy ejection of a component from the mold, a minimum of 0.5 mm draft for engineering components is required.

Draft direction along the main tooling axis

Draft direction from side core tooling axis

Views of the thickened plastic component

1) Front view

2) Side view

3) Top view

4) Isometric view

5) Bottom view

6) Final part Draft Analysis

MASTER SECTION:

All the Feasibility checks, clearance from the driver and the passenger, clearance with the mechanism, and clearance with the environment are done by taking the master section as a reference.

Hence we can also create engineering features with reference to the master section

Here I have done a dog house with reference to the master section given in class A.

Conclusion: Hence the solid closed body is created by the Master section & tooling axis and Draft Analysis is done for a class-A surface & adding the engineering feature Dog house through the given Class-A Master section Reference was done.