AIM : Create the Core and cavity blocks for the switch bezel designed in the earlier challenge.

The core is the part which forms the internal shape of molding. The cavity is the part which forms external shape of molding.Core is the side of the tool where the plastic part is injected from; also known as the bottom half of the tool. The upper half of the mold is called CORE.A tool with one impression is often called a single impression (cavity) mould. A mould with two or more cavities of the same parts is usually called a multiple impression (cavity) mould.

The outside of the enclosure will be a cavity in the A-side of the mold and the inside will be a core on the B-side.

Gonna work theparting line and the parting surface.

1ST to create a core side in the give switch bezel.

inser the geometric----name as core cavity design.

in the generative design.

extract the boundary of class A.

AND extrapolation the boundary.2

and extrapolation the class A.

length 15mm.

curvature and tangent

click ok.

unhide the class B surface and joinwith the class C.

CREATION OF TOOLING DIRECTION

• Considering the Ejection from the cavity of the mould after manufacturing the interior trim (switch bezel) must have the nominal 3-degree draft angle.
• Hence the tooling direction is created by considering the above factor and bisecting method is used.
• The base surface of the class – A was extracted and a point at the centre is created and an axis system was inserted to the point with the current feature is disabled.
• Then, using project intersection along yz plane is created and the two inclined lines were drawn inside the positioned sketch.
• Then bisecting lines with the two inclined lines were drawn.
• Now the same procedure is done along the xz plane but on one side we don’t have inclined lines so the centre point is used to extrude a line along the z-direction and gave a measurement of 5 degrees (Tentatively).
• With these two lines from sketches 1 and 2, the bisecting line is crated and published as Tooling Axis(tooling direction).

PROCEDURE FOR DRAFT ANALYSIS

• First the class – A surface is checked before creating the Class –B&C surface and finally the solid body must be analysed. Both can be done by following the below procedures.
• By changing the view mode to custom view parameters – Material mode then the feature draft analysis is enabled.
• Then the compass was activated and placed with the tooling axis by dragging the red pointer and then locked it.
• Then, by selecting the quick analysis mode, the nominal value will be 3 degrees and checked for the component's draft angle.
• The green colour area shows that it satisfies the 3-degree draft angle. If not satisfied then by using the Running point tool the area is measured and then altered to get a successful draft for the created tooling direction.

CORE DESIGN

CAVITY DESIGN

PARTING LINE

PARTING SURFACE

ISOMETRIC VIEW

MULTIPLE VIEW