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
Brainstorming, Cognitive Charts
and Attribute Analysis
Lesson 4
Plastics. Properties, Uses and Common Forms.
Hardwoods and Softwoods Properties, Uses and Common Forms
Ferrous and Non-Ferrous Metals, Properties and Common forms
Drawing Styles and Modelling

lesson 9
Lesson 12

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


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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.