Thursday, November 28, 2013

Moulding Timbers

Steam bending
Steaming is an effective method of softening or plasticizing wood so that it may be molded for craftsman and industrial applications, such as the manufacture of furniture.
planks of timbers are placed in a room called a steam box then heat and moisture is applied making the fibres in the wood expand making it easy to bend or form with a mould or a jig. by clamping them all together. Once in moulds heated,and moisture added they are leaved outside to let the extra moisture evaperate ready to use the the outcome in furiture.e.c.t.
Vaccum bag
A form of laminateinting.
The layers of the veanear are placedon a mould and put inside a tought plastic bag (so it's harder to rip or tear) a vaccum pump is used to suck air from the bag and the bag is then suck down onto the veanears hold them firmly.


Laminating
Sticking layers of timbers together to form a stronger timber. Its strong because it's glued together but the gain needs to run in different ways- opposite ways on different layers.

Other ways: instead of uses layers of wood stuck together with glue, people also have the use of aluminium sheet and a honeycomb shaped material glue together.
When wood is cut into thin Veaners it can be bent around a mould and formed into complex shapes. It would not be possible to produce many of the shapes made with a soild block of wood.


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