Challenge

Week 8 - Challenge 6 - Core & Cavity Design

Design of Core and Cavity for Switch Bezel

  1. Creation of Tooling Axis:

Tooling Line along Y axis:

Intersecting lines are created from the class A surface along

the Y sketch plane. A bisecting line is created as shown.

Tooling Line along X axis:

A Tooling line of 6 deg is created, as there is no wall on opposite side to create a bisecting line.

Tooling Axis by Bisecting method:

Publish the Tooling Axis and class A surface.

  1. Draft Analysis on Class A surface:

From the Draft analysis it is clear that the Tooling axis is in correct direction for the mold to open and eject the component.

Color scale

  • Green – Draft angle is greater than 3 Deg
  • Blue – Draft angle is between 0 & 3 Deg
  • Red – Draft angle is less than 0 Deg
  1. Creating Class B and C Surface:

These surfaces are created by

  • Extracting surface from Class A surface.
  • Untrim the Extracted surface.
  • Extrapolating the surfaces.
  • Trimming the surfaces together.

Class B surface:

This surface is created by various surfaces from class A surface.

  • Bezel rest surface
  • Walls
  • Base
  • B surface Trim

Make sure the Thickness of Class B surface from Class A surface is 2.5 mm, give proper fillet value to maintain the Thickness.

Class C surface

Created by

  • Multiple Extract
  • Sweep
  • Smooth curve
  • Extrapolate & Trim

Final surface

Closed surface is formed by Trim & joining the Class A, B & C surfaces.

Check the Final surface for gap using Boundary Option

  1. Create Part using Closed surface

  1. Draft analysis on Part

Perform draft analysis on Part along Tooling axis

Color scale

Green – Greater than 2.9 and above

Blue – Between 0 & 2.9 Deg

Red – Less than 0 Deg

The Draft analysis concludes that the tool can clear along the Tooling Axis of switch bezel.

CREATION OF PARTING SURFACE:

The parting surface is created with trim of Class (A, C) and Class B Surface as shown.

Parting Line:

Bisecting line between the parting surface and Class (A, C) Surface.

Core Design:

Cavity Design:

Core Surface:

CAVITY SURFACE:

CORE BLOCK:

CAVITY BLOCK:

Core and Cavity Assembly:

The Above shown details are followed for creating Core and Cavity Block for Switch Bezel.

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