This module introduces the student to the methodologies involved in the design for plastic and sheet metal parts. Based on these designs it develops the machining processes for the production of moulds and press tools.
Design for Plastic:
Plastic characteristics
Wall Thickness
Draft angles
Shut off faces
Weld lines
Sink marks
Shrinkage
Injection temperature
Ejection temperature
Mould Design:
Theory and demonstration of moulding machine operation
Cores
Cavities
Runners
Gates
Inserts
Ejector pins
Single and Multi impression tools
Mould base part libraries and components
Mould cooling
Design for Sheet Metal:
Bend types
Bend allowance
Auto relief
Sheet metal features
Rolling back
Creating flat patterns
Sheet metal drawings
Flatten bends
Process bends
Forming tools
Tool Design:
Punch
Die
Blanking
Piercing
Punch plate
Stripper plate
Die set
Clearance
Draft angle
Land
Progression tooling
COMPUTER NUMERICAL CONTROL
Introduction to the following CNC areas
Machine axis, Speeds/Feeds, ISO (G code) programming, Conversational programming, Machine and tool setting
Types of machines, Milling, Lathe, spark erosion, wire erosion
