Week 8 - Challenge 3 - Coin Holder Design

Challenge -23 COIN HOOLDER DESIGN

Objective:

• To design coin holder as per automotive OEM Standurd.
• Create B class and C class and tooling axis.
• Convert close surface into the solid body and provide the thickness 2.5 mm.
• Performing draft analysis to verify the creation of the tooling axis and Cclass surface.

Software:

CATIA V5 (Generative Shape Design)

Design Methodology with images:

Procedure for creating Tooling Axis

1. Intersect the model with the plane perpendicular or to an axis system.
2. Extend the lines which are perpendicular to the plane.
3. Again intersect the model with another plane and extend the lines perpendicular to it.
4. Crteate a bisecting line by bisecting option in line defination.
5. Rename it as Tooling Axis.

Procedure for creating B class surface:

Side walls:

• Extract the side walls with no propogation in extract option.
• Utrim them
• Extrapolate the walls with point continuity of distance 20mm.
• Trim the walls to get the required shape.
• Offset those trimmed walls with thickness value.

Top Bottom Surfaces:

• Extract the surfaces seperately and untrim them.
• Extrapolate the surfaces with required distances.
• Offset them for required shape.
• Measure the fillets, calculate it and create fillets.

Procedure for creating class C surface:

• Get the boundary lines of class A surfaces seperately.
• Sooth the curves with a smooth option as boundary lines have a lot of vertices.
• Sweep the curve with tooling axis as direction in Sweep option.
• As both lines do not intersect, extrapolate them with a cetain distance
• Trim the surfaces.

Procedure for creating closed body:

• Join the Class A and class C surfaces
• Trim those joined surfaces with class B surfaces.
• Go to part design and insert a body.
• Create a closed surface.

Hallow Surface

Closed Body

Procedure for Creating Draft analysis:

• Go to the insert menu and select the aalysis option.
• Select Feature Draft Analysis.
• Select the material option and select the srface.
• Drag the compass and place on tooling axis.
• Make sure that the top surface is in green colour as draft angle should not exceed 3 degree.
• Click on okay after confirm the model.

Draft Analysis of Class A surface

Draft Analysis of Close Body