DESIGN OF SWITCH BEZEL USING CATIA v5

DESIGN OF SWITCH BEZEL

AIM: Create the Switch Bezel Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.

OBJECTIVE:

• To Create Tooling Axis.
• To Create Class B and Class C Surface.
• To Create Solid Body Out of Surface Modelling.
• To perform Draft Analysis to given Class A and Final Plastic component.
• Thickness of component is 2.5mm and the angle of Draft is 3degree.

GIVEN CLASS A SURFACE:

(Input Surface)

*To continue with the Design procedure first we have to find the Tooling axis for the surface to Check the Draft Using Draft analysis Tool.

TOOLING AXIS: The Direction in which the mold or Core and Cavity opens is Tooling axis.

(TOOLING AXIS)

*The yellow line represnt the tooling axis

PROCDURE;

• In this above Figure we created a point on a class-A surface with the aim to move the main tooling direction.
• Created a new Axis support by creating a new point at the centre of the base in Given Class A surface as shown in below image (1)
• After creating the new axis support we took the interstions to create a reference lines.
• After creating the intersecting lines select the line command and create two bisecting line as shown in below image (2&3) to create a tooling axis line as shown in above image (tooling Axis).

(Image 1)

(Image 2) (Image 3)

DRAFT ANALYSIS OF CLASS-A SURFACE :
Draft Analysis:The draft analysis technique is used to analyze whether our part model created in CAD is manufacturable based on the draft condition applied. Here the part should get easily removed from the panel dies (in case of Sheet metal part) or Mold (in case of plastic).

The analysis is done for 3degree draft as shown in below image,

PROCEDURE;

• After creating Tooling Axis select the feature draft analysis option from the insert option,
• Select the element to analyze.
• Click on the compass to define the new current draft direction option and align it with the tooling Axis by dragging the compass to the axis.
• If the colour appears in blue, click the invert button in direction table.

CREATION OF CLASS-B SURFACE:

• Now for class-B creation, We have to extract the surface from class-A surface part by part.
• These extracted surface should be untrimmed and extrapolated.
• Trim the extrapolated surface as recommended and offseted the surface to 2.5mm
• Required Fillets are given to the surface.

CREATION OF CLASS C SURFACE:

• To create the Class-C surface we have to create a boundry line by using boundry feature.
• Now the boundry line is to be swept by using sweep feature from the surface table using Line profile and with draft direction subtype with 3 degree angle along the tooling axis.

FINAL TRIM:
In this process we are going to create a final requried closed body by Trimming the Class-A, Class-B and Class-C surface together.

TRIMMING CLASS A CLASS B AND CLASS C;
Make sure that there is are open boundry between class-A and class-C surfaces while trimming surfaces.

JOINING CLASS-A WITH CLASS-C SURFACE;

JOINING CLASS-A AND CLASS-B SURFACE;

DRAFT ANALYSIS FOR FINAL COMPONENT:
In this process we are going to check the draft analysis for the final closed surfaces to ensure all the surfaces are above 3 degree draft.

CLOSED BODY:
In this process we are Creating a closed body in part workbench to create a final output component.

FILLET THICKNESS:

DESIGN TREE:

RESULT: