Year 10 Manufacturing (Resistant Materials)

Lesson 10 Week 10 Vacuum Forming (Clock Project)

Programmes of Study Teachers Rational Lesson1 (Situation and Brief) Practical Skills Design Skills Theory and Knowledge
Lesson 2
Orthographic Drawings
Lesson3
Brainstorming, Cognitive Charts
and Attribute Analysis
Lesson 4
Plastics. Properties, Uses and Common Forms.
Lesson5
Hardwoods and Softwoods Properties, Uses and Common Forms
Lesson6
Ferrous and Non-Ferrous Metals, Properties and Common forms
Lesson7
Drawing Styles and Modelling
Lesson8
Tools.

lesson 9
Flowcharts
lesson10
vacuumforming
Lesson11
Quality
Lesson 12
Finishes

Industrial Processes-Vacuum Forming




A Vacuum Forming Machine



Vacuum Forming
Vacuum Forming is an industrial technique which may be used for batch production or mass production.
A sheet of thermoplastic held by the use of toggle clamps is heated until the plastic becomes malleable (soft and flexible).
The air is then sucked out from underneath the plastic using a vacuum pump. Atmospheric pressure presses down on top of the plastic sheet which in turn presses down onto a mould or pattern.
The plastic sheet takes the shape of the mould.

This process enables thermoplastics to be formed into complicated shapes such as packaging, storage trays and seed trays.





Examples of Vacuum formed Desk Tidies


Example of Pattern


 

Press on the following links to find out about ;

Preperation of the mould or former.

Stages of Vacuum Forming.

Programmes of Study

4c A range of industrial applications for a variety of familiar materials and processes;


5e That to achieve the optimum use of materials and components, account needs to be taken of the complex interrelations between material, form and intended manufacturing processes;