Forming, redistribution and addition processes revision notes

Forming Processes Overview

In product design, understanding how materials can be shaped is crucial. This note covers the key forming processes for paper, polymers, metals, and wood, along with their applications and suitability for different products.

Paper and Board Forming Processes

• Die Cutting: A method used to cut shapes from paper and board using a die. Ideal for packaging and mass production.
• Laser Cutting: Utilizes a laser to cut intricate designs, offering precision and flexibility.
• Creasing: Creates folds in paper, essential for packaging design.
• Bending: Involves physically bending paper or board to create 3D shapes.

Polymer Forming Processes

• Vacuum Forming: A process where a sheet of plastic is heated and formed over a mold using vacuum pressure. Suitable for packaging and prototypes.
• Thermoforming: Similar to vacuum forming but can involve more complex shapes.
• Injection Moulding: A method for producing large quantities of identical plastic parts, ideal for consumer products.
• Blow Moulding: Used for hollow plastic products like bottles.
• Extrusion: Produces continuous shapes by forcing material through a die.

Metal Forming Processes

• Press Forming: Uses a press to shape metal sheets, suitable for automotive parts.
• Casting: Involves pouring molten metal into a mold. Types include sand casting and die casting.
• Welding: Joins metal parts using heat; methods include MIG and TIG welding.

Wood Forming Processes

• Laminating: Layers of wood are glued together to create strong, curved shapes.
• Steam Bending: Wood is softened with steam and bent into shape.
• Traditional Wood Jointing: Techniques like dovetail and mortise and tenon joints provide strength and aesthetics.

Jigs and Fixtures

Jigs and fixtures are essential for accurate and repeatable manufacturing. They help maintain dimensions and angles, ensuring consistency in production.