Challenge

Week 8 - Challenge 5 - Core & Cavity Design

RRaja Narendra Bandaru30 Jan 2021

AIM-

TO DESIGN THE CORE AND CAVITY BLOCKS FOR THE SWITCH BEZEL.

CORE & CAVITY DESIGN

SINCE WE ARE WORKING ON THE CORE AND CAVITY DESIGN EXERCISE, I CHOSE THE PREVIOUSLY DESIGNED SHAPE.

THE PART IS SWITCH BEZEL WITH THE THICKNESS OF 2.5mm.

THE CLASS-A AND CLASS-C OF THE PART ARE TRIMMED AND LATER TRIMMED WITH CLASS-B SURFACE TO PRODUCE THE PARTING SURFACE (WITH COMPONENT AREA)

PARTING SURFACE-

IT IS THE DIVIDING LINE THAT SPLITS THE CORE AND CAVITY HALVES OF A MOLDED PART.

THE PARTING SURFACE IS SAID TO BE PARTING SURFACE WHEN IT IS TRIMMED WITH THE PARTING LINE.

IT IS CREATED FROM EXTRAPOLATED CLASS-A SURACE AND IS TRIMMED WITH CLASS-C AND THEN WITH CLASS-B SURFACES

CORE DESIGN-

A RECTANGLE HAS TO BE CREATED ON THE PARTING SURFACE AND TO BE EXTRUDED IN THE TOOLING AXIS DIRECTION.
THE UPPER PART OF THE PARTING SURFACE IS THE CORE PART WHICH HAS THE OPENING AND TO BE FILLED WITH THE FILL OPTION BY CREATING THE BOUNDARY ON THE OPENINGS.
THEY ARE TRIMMED TO BE INDEPENDENT.
A CLOSED BODEY HAS TO BE CREATED FROM IT, IT IS THE CORE.

CAVITY DESIGN-

THE EXTRUDED RECTANGLE IS TRIMMED WITH THE EXTRACTS OF THE CLASS-B SURFACE (BOTTOM SURFACE OF CLASS-B)
IT IS ALSO FILLED AND THE CLOSED PART IS ALSO BEEN CRAETED.

PARTING LINE-

PARTING LINE REPRESENTS WHERE THE TWO DIFFERENT SIDES OF THE MOLD COME TOGETHER. THIS LINE OFTEN (BUT NOT ALWAYS) MARKS THE BORDER BETWEEN THE INSIDE AND OUTSIDE OF THE PART.

TO CREATE THE PARTING LINE THE INTERSECTION HAS TO BE CREATED BETWEEN CLASS-A AND CLASS-C SURFACES.

RESULT-

THE CORE AND CAVITY BLOCKS WERE DESIGNED FOR THE SWITCH BEZEL.