Lamination of wood Flashcards
What is lamination of wood?
Advantages of laminating wood?
Disadvantages of laminating wood
Wood laminating is the process of forming multiple sheets of veneer, chips or solid timber using moulds, clamps and glue, to produce rigid, lightweight and complex structures.
Price - The wood is made from composite materials which are cheaper than other types of wood.
The wood is more resistant to scratches, moisture, wear and even sunlight due to the coating applied at the end of production.
Laminated wood is not as visually appealing as other woods due to its artificial wood grain.
Laminated wood is very hard to repair.
One-off vs Mass Production
One-off production products are very expensive due to the amount of time, skill set and resources used on it.
One-off productions are also very time-consuming
Mass production has a huge initial investment due to the large-scale machines needed to start production.
One machine breaking can halt production causing there to be a delay in finished products and could potentially stop an order being shipped o time.
Many jobs will be lost due to the very automated process.
What is rapid prototyping?
Advantages of rapid prototyping
Disadvantages of rapid prototyping
Rapid prototyping is using various different types of manufacturing methods such as CNC machines to create a scale model of your design.
rapid prototyping shows design flaws in your product which will help you save time and money in the long run.
Shows what the product will actually look like real life which could change your ideas.
Not as effective because it doesn’t simulate real production methods for the product causing inaccuracies
What is reverse engineering?
What are the advantages reverse engineering?
What are the disadvantages reverse engineering?
This allows companies or people to improve products that are already in the world by changing a few core details.
This saves money by not having to replace the product completely.
An object can never be fully disassembled to its raw materials and design.
This is a very tie consuming which wastes a lot of time and money
uses of thermochromic ink
Test strips for batteries
Contact thermomerters
kettles
uses of hydrochromic ink
Damp dmage in buildings
child paintings
uses of photochromic ink
Glasses
windows
t shirts
uses of electrochromic ink
Battery use checker
smart windows - controls amount of light and heat allowed through
Uses of shape memort alloy
Glasses frames
springs for windows
dental wire
Definition and uses of Polymorph
A thermoplastic which can be shaped into anything when heated to 6n degrees Celsius. This can be done any number of times.
Uses
Grips
Prototyping
Moulds for vacuum forming
Definition and uses of smart grease
Smart grease is a sticky and viscous gel which can be used to control the speed of moving parts
Uses
Slow close doors
speed control
Definition and uses of smart putty
This material behaves soft like mouldable plastic but becomes like hard rubber if impacted
Uses
Stress Grips
Impact protection
JIT deffintion , advantages and disadvantages?
JIT production is when the raw materials needed for an order is ordered jit for use.
Money is very efficiently used
Warehouses are not needed for storage
No waste or excess stock
Sustainability issues with Car Manufacture
Damage to the environment including animal habitats
Noise pollution
Visual pollution
Atmospheric pollution including acid rain, greenhouse effect global warming
Production in factories
Transport and use of cars
Importance of marketing
Promotes your product which increases customer contact and memory
Tv adverts Promote brand image and recognition. This can also target a certain audience
Packaging is a big role due to the amount of information it can provide. e.g Brand logos, information about product and brand and attracting people
WHAT ARE MANMADE BOARDS?
Manmade boards are commonly used in the construction industry, for interior fittings and furniture. They are more stable than natural woods and are less likely to warp and twist out of shape.
The three main types are; plywoods (laminated boards), particle boards and fibreboards.
They are all manmade in factories/mills. They are usually composed of natural woods and resin, which binds them together.
What are Plywood and the 3 different types?
Plywood is a composite material. Composed of individual plies/veneers of wood. The plies are glued together with synthetic resin.
Softwood ply tends to be used in the construction industry for walls, roofs and floors.
———————————————————————————-Hardwood ply often used for quality laminate flooring, kitchen units and some furniture.
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Marine plywood is specially treated so that it is water resistant.
Manmade boards such as plywood can be manufactured so that they are extremely wide. This makes plywood a popular material in the construction industry.
What is BLOCKBOARD and its uses?
A type of plywood. Built up with a core of softwood strips bonded together with adhesive and covered with a sheet of plywood on either side.
Used as a building material and for furniture manufacture including fitted kitchens / bedrooms.
A strong and heavy board, unlikely to warp and twist. The plywood faces are normally beech or other natural woods.
What is CHIPBOARD and its uses?
This is made up of small chips of wood bonded together with resin and formed into sheets by compression.
It is not as strong as plywood or block board, but it is not expensive. Chipboard is often covered with a plastic laminate or wood veneer and used in cheap furniture.
A particle board. Interior and moisture resistant chipboards are available.
What is MEDIUM DENSITY FIBRE BOARD (MDF) and its uses?
A quality board, relatively cheap. Composed of fine wood dust and resin pressed into a board.
Can be worked, shaped and machined easily. Paint can be applied to it, without the need for an undercoat or primer (although finishes better with an MDF primer).
Used widely in the building, shop fitting and furniture trades.
What is HARDBOARD and its uses?
Made from wood fibres that have been pulped.
The pulp is put under pressure until the fibres bond to produce a tough board.
Standard hardboard is smooth on one side and rough on the other. It is not as strong as the other boards.
What is compression moulding and its process?
Compression moulding is the process of moulding a polymer in an open mould cavity using high pressure and heat.
A two-part mould is created which contains the designed mould.
The lower mould is heated which contains the plastic composite.
The upper mould is forced down maintaining high pressure and heat.
The upper mould moves up and the ejector pin removes the product
