Week 8 - Challenge 6 - Core & Cavity Design

                                                                    CORE AND CAVITY DESIGN

 

AIM:

To create the Core and cavity blocks for the switch bezel. 

 

OBJECTIVES:

• Ensure Proper Tree Structure
• Geometrical sets should have a proper name based on the sketches present inside of it
• All the sketches should be created under the Geometrical set 
• Use the Close Surface feature to make a solid body from the surface. 
• Publications: Use the publication option and publish the below
• Tooling Axis
• Switch Bezel Solid / Surface body
• Parting Line and Parting Surface

 

TOOLING AXIS CREATION:

1. By observing part or component we have to choose direction of drafting. while doing this we have to consider geomety of component. All holes, fillets, chamfer etc have to take in our consideration and we have to choose direction of drafting. In this case we have selected z axis for drafting direction.

2. we have selected middle whole for create dummy axis. In this whole we have add one point at center of hole and from this point we have create one line. We have consider this  line as a dummy axis.

3. Now by observing component geometry, we have to choose direction or plane to create axis for bisecting the component. Here we have choose zy plane or y direction and generate plane parellel to zy plane with respect to center point of hole.

4. After this we have to intersect  plane or axis system with component. It will provide you one shape of geometry. 

5. Now we have to draw two lines from extreme outer two points of bisecting line or from extreme outer line.

6. By using line option, we have to create bisecting lines from those two final lines.Here in bisecting line option we have to choose correct line from horizantal or vertical line according to our drafting direction line. 

7. This line will provide you final tooling axis line.

 

• At first a base a extrated from the switch bezel class a surface and a point is created at its centre using the coordinates

          

• Then a plane is created with respect to zx and an intresection line is extracted.From the intersection line two line were created and  bisecting liine has been created with respet to those lines 

          

• Another plane is created with respect to yz place and an intersection plane extracted with respect to that plane.Two lines were selected from the intersection and a bisecting line is created using those lines 

          

• From the created bisecting lines a new bisecting line is created which is decided to be the exact toooling axis

          

 

 Draft analysis:

1) It is a tool that allows the user to ‘see’ whether the part they are designing can be removed from the tool being used to make it.

2)In the case of plastic injection molded parts it also allows the designer to see if there is enough draft on the part to ensure that it can be correctly grained.

3) we always use the tool with the axis direction method. Put the main axis on the draft direction line with Z being parallel to it. Select the tool then select the part body. You may need to reposition the axis again.

4) The results window has 2 options 1 with just 3 colour variants and the other with many variants. They can be edited by double clicking on them to give you the result you desire. The colours show the different draft angles.

5) We have to use following path for drafting anaylsis

Tools- Anaylsis- Feature draft anaylsis

6) At starting of drafting anaylsis we have to set compus which is show in direction row (2nd number option). During this w of compus is set towards the drafting angle. 

7)After this we have to click on component. Now component become green as shown in below image and also if it become blue then flip direction of compus using flip option in direction row.

8) Finally set drafting angle at 2.9 degree and measure drafting angle at different faces of  component by using display row.

9) If your component is  green then drafting anaylsis process is completed.

 

CLASS A SURFACE:

 

FINAL PART:

ISOMETRIC VIEW:

FRONT VIEW:

TOP VIEW:

SIDE VIEW:

 

CONCLUSION: 

Thus the Core and cavity blocks for the switch bezel were designed