Door Applique - Attachment Feature Creation

Objective:

1. Create a solid body from the class A surface of the Door Applique

2. Follow industrial design rules to create tooling axis and perform draft analysis on the Door Applique

3. Design attachment features like Locators and Heat Stakes for fixing the Door Applique with the Door pane

Creation of door applique(Attachment feature for door inner side panel) by using given stying surface

In this two way and four way locator as well as the heat stakes for attchment.

Below is the tree structure to know the steps followed by me during design

Procedure followed for design:

Design of Class B surface

1. The first step in making the class B for the component is to extract the surfaces of the class A surface and then offset it at a distance of 2.5 mm.

2. Then the boundaries of the offseted surface are extrapolated and then trimmed with each other to give the desired shape.

The below figure shows the class B surface in cyan colour.

Design of Class C surface

1. The class C surface is made by extracting the boundary of the class A surface and then smoothening the boundary for the smooth curvature of the boundary surface.

2. Sweep feature is used to create the C surface by giving direction of sweep to be in tooling direction with a 3 degree draft. This operation is shown below

3. After this operation the surface of sweep is trimmed with both the class A and class B surfaces to create the complete surface body.

When Class A, Class B and Class C surfaces are designed and combined together it is doubled checked whether the surfaces are not open from any side with the help of boundary feature.

After ensuring this, surface body is converted in solid body with the help of closed body feature in part design work bench in Catia.

Here is the sketch solving status to make sure that the sketcher used should be ISO constraint :

here is link to acces CATpart files :

https://drive.google.com/file/d/1pO_bFJdR82c0_h5pyFwq9ZLS5aNq1Y_e/view?usp=sharing