Week 4 Challenge

1. Define tooling direction

2) Create tooling direction for Class A with 10 deg draft ( draft in command should be 10 deg) and show the draft analysis.

3) Create B surface of the given lens in surface modeling (not in part), with a 4 mm thickness.

4) Write the definition of the Parting line.

     

                     The parting line refers to the imaginary line that separates the two halves of a mold used in manufacturing or casting. It is the point at which the two halves of the mold meet and can be seen as a visible line or seam on the finished product. The position and quality of the parting line can have a significant impact on the appearance and functionality of the final product, and it is essential to carefully consider its location and design during the mold-making process.

5) Create a Parting Line for thickened lens and create a report for how you approached the parting Line and did a draft analysis?

                                                            Parting Line

                                                                   Parting Surface

Objectives: 

• Creation of Tooling Axis.
• Creation of Class B and Class C surface.
• Creating a solid part out of surface modelling.
• Draft Analysis of Class A surface and final plastic component.

Tool Used: CATIA V5

Introduction: In this project we are designing a tail light lens using given class A surface. The approach includes creation of Class B surface keeping 4 mm thickness in mind for the complete component. The design also included Class C creation from the given parent surface. 

CLASS A: Following surface is given as the input for the component creation.

To continue with the design process first we need to find out the tooling axis for the surface and check for all the drafts using Draft Analysis tool of CATIA.

Draft Analysis for Surface A:

The analysis is done for 10degree draft. So as can be seen all the surfaces are  than 10deg. 

Creating of Tooling Axis: 

• Create an intersection of CLASS A surface with ZX plane and from the intersection create the tooling axis as shown below. 

• Creation of Class B: 

  • Now for Class B creation, we have extracted surface from Class A and untrimmed them to obtain the original parent surface. 
  • These surfaces are then offset to the required thickness.
  • After offsetting, all the surfaces are trimmed into the required shape.
  • Required fillets are given to the surfaces.

Creation of Class C: 

• For creating this surface we have extracted the boundry of Class A using multi-extract and then converted to smooth curve. 
• Now this smooth curve is swept along the draft direction with a 10deg draft.

Final Trims: 

Class A + Class C:

To make sure that there is not any open boundry between class A and class C, we have used join option to created the single body. This is done to make sure that the parting line doesn't lie between the these two surfaces.

Class A + Class B + Class C: 

For this we have trimmed the above shown surface with the Class B surface using trim feature. 

All the main features are published as can be seen in the image shown above.

Draft Analysis on the Final Component: 

For this analysis, main tooling axis is taken draft reference. 

Following results were obtained: 

TRANSPERENT VIEW OF TAIL LIGHT LENS