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PAPER ONE - Coggle Diagram
PAPER ONE
Joining methods
Adhesives (Glue, Hot Melt Glue)
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forming
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Vacuum formers can be used for making moulds and housings for electronic products. High impact polystyrene (HIPS) is often the material used in a vacuum former, as it heats up quickly depending on thickness. The process is as follows:
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- once hot, the solid former is pressed into the HIPS from a bed that can rise
- the vacuum is turned on, removing all the air from around the former
- the HIPS takes the form of the solid former
The solid shape that goes in the vacuum former is called a former; the hollow part that has been vacuum formed is called a mould.
Sometimes talc can be dusted on the former so that it drops out of the mould with ease. A good vacuum-formed mould will only be possible if a good former has first been made. The former must have a draft angle, so it doesn’t get stuck in the mould.
Die cutting is a commercial process that accurately cuts and creases paper or card at speed. Within a die cutter, sharp blades are arranged to produce a cut, while rounded blades are arranged to produce a crease - this allows for the material to be folded rather than cut.
The arrangement of sharp and rounded blades produces a net as the card is stamped by the die cutter. Some die cutters can be found in schools, and these smaller versions produce one net at a time. Commercial die cutters are often on a roller and cut the card as the roller passes over the material.
marerials
cardboards
Duplex Board
One side smooth for printing, the other rough
Used for food packaging (e.g., cereal boxes, fast-food containers)
Corrugated Cardboard
Strong, impact-resistant, made of fluted layers
Used in shipping boxes, protective packaging for fragile products
Foil-backed Card
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Used for food packaging, takeaway containers
Moulded Pulp
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Used for trays and protection of delicate objects (eggs, technology, etc)
Types of Plastic
Polyvinyl Chloride (PVC)
Strong, flexible, resistant to moisture
Used for blister packs, medical packaging
Acrylic (PMMA - Perspex)
Transparent, scratch-resistant, lightweight
Used for high-end product packaging, display cases
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printing
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First, the plates are wet with water.
Then, ink is applied, sticking only to the image areas.
Paper is pressed onto the plates, transferring the inked image.
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Finally, you get a colorful print with sharp details!