Challenge Report

Core and cavity design

Create a new geometric set “CORE AND CAVITY DESIGN” under the main part.

Create a boundary and extrapolate it in all direction incrementally till it is trimmable.

Enable the draft analysis and observe which surfaces will go in core and cavity resp.

Unhide the C surface and the B surface. Trim the extrapolated class A and the C surface. Change its color.

Now trim the above surface with the B surface outwards. Check if it can clear the tooling axis. This obtained surface is our parting surface as of now.

Create a new axis system or use the existing axis system on the bottom-most face. Uncheck the “current” option.

Create a new geometric set “PARTING SURFACE”. Create a new sketch on x-y plane of the axis system. Draw a rectangle such that it is well within the parting surface. Extrude the rectangle in the direction of tooling axis for some appropriate dimension.

Create another geometric set “CORE DESIGN” and move the extrude to it. Trim the extrude with the parting surface on the other side.

Now create a boundary and close the open surface and join them together.

Go to part design workbench and create a solid body. Now perform the create solid action and name the body as “CORE BLOCK”.

Note:

Create a cross section of how the cavity part must look like wrt the core block. For that, intersect z-x plane with parting surface and core block. Figure out how the cavity block must come out.

Create a new geometric set “CAVITY DESIGN” under core and cavity design. Extrude the same sketch with a rectangle in the direction of tooling axis.

Trim the B surface with the extrude opposite to the direction of core. Create a boundary and fill it. Join the fill and the trim together.

Go to the part workbench and create a solid body and perform create solid operation. Name the body as “CAVITY BLOCK” and change its color.

Add the core block to the intersect. Check if the upper surface coincides with the parting surface.

Insert a new geometric set “PARTING LINE” under core and cavity design. Here we require A + C surface and B surface to split.

The obtained line’s line-type, color and thickness is changed. It is called the parting line.

Now, using this parting line, split the temporary parting surface with the parting line. The obtained surface is the actual parting surface.

PLEASE FIND THE FOLLOWING FILES:

CATPart.zip

Screenshots.zip

Challenge Report.docx