Week 8 - Challenge 3 - Coin Holder Design

Aim:

•  This design aims to create a coin holder plastic component using the given class A surface following the OEM standard.
• perform the draft analysis and join Class A, Class B & Class C surfaces.

Class A Design:

• The automobile design sector employs creates the class-A surface.
• It describes the aesthetic Surface final it requires final production surface data.

Class B Design:

• The class-B surface is the second surface from the class-A surface reference with a specific thickness.
• This surface includes Plastic design engineering components.
• These must also be "error-free" and smooth but are not bound to the same requirements as class A surfaces.

Class C Design:

• Compared to Class A or B, the Class C finish allows greater flaws.
• Class C specifications are frequently used for interior surfaces that are difficult to see, characters that will be hidden by another part when it is completed, or surfaces.

Material choose:

• It is used the most frequently of any plastic in automotive manufacturing.
• A thermoplastic polymer can easily be formed into almost any shape.
• It has excellent chemical and heat resistance and is generally resistant to impact. Given this plastic's resume, you will frequently find it in car bumpers, switch bezels, etc...

 Design Methodology:

• Add the coin holder class A surface design to the CATIA program.

• Choosing the tooling axis of the switch bezel design.

•  Then Creating a class B surface.

•  The surface of class C creation.

•  Joining the change Verify that the class A, class B, and class c surfaces on the coin holder are all closed surfaces.

•  Create a solid body from the surface by using the Close Surface function.

•  Finally, Perform the Draft analysis on the coin holder and finalised the plastic component.

Class A Surface:

 

Class.B_Surface:

 

 

Class.C_Surface:

 

 

Class A Joining_Method:

• In Class A surface, must be closed.
• If it is not closed or any invalid features are noticed the part will not going to generate.
• The part is fully constrained, use the join method and give distance propagation and join it all.

• Distance propagation is 0.001mm in that case the surface is not closed.

• Changes into 0.003 mm, in this case, will be closed.

Creating of Tooling Axis:

• When creating a tooling axis by using the extract the surface at the center using normal to surface, point are chosen as inputs using the tooling axes that were established along the x and y-axes.
• Select Insert > Axis System from the menu bar or click Axis System . ...
• Select the point as shown to position the origin of the axis system you wish to create. ...
• If you are not satisfied with the x-axis, for instance, click the X-Axis field and select a line to define a new direction for the x-axis.

 

Class.A & Class.C_Joining:

• In a process of joining A & C, it should be a closed surface.

Class.A & Class.B & Class C_Joining:

Draft Analysis:

• The draught analysis approach is used to determine whether our CAD-created part model is capable of being manufactured given the draught condition employed.

Draft Analysis on Class-A Surface:

• Enter analysis, feature draught analysis, and insert.
• Align the compass and the tooling axis.
• Click the surface to verify that it is within the draught values' permitted range.
• The surface should be green, and the nominal input value for the column should be 90 degrees.
• As a result, the draught analysis on the class-A surface was completed satisfactorily.

Draft Analysis on Final Part:

• You can determine whether the part you drafted will be simple to remove using the draught analysis command.
• In this kind of analysis, zones on the investigated element are identified by color ranges where the deviation from the draught direction at any given place corresponds to predetermined values.

Orientation of Class A, B, & C, Surfaces:

Front View:

Top View:

Left View:

Isometric View:

Results:

• Successful creation and draught analysis of the class-A surface and finished plastic Coin Holderl component employing class-A surface.