key methods Flashcards
cnc routing
a computer numerical control router- a computer controlled cutting machine for cutting hard materials
5 types of timber joining
1 lap 2 finger 3 dove tail 4 dowel 5 mortise and tenon
the process of using a heat box to make wood pliable enough to easily bend around a former
line bending
what is screen printing
its a technique whereby a mesh is used to transfer ink onto a substrate, except in areas made impermeable to the ink by a blocking stencil
what is offset lithography
Offset printing is a commonly used printing technique in which the inked image is transferred from a plate to a rubber blanket, then to the printing surface.
ferrous metals
iron, stainless steel
non ferrous metals
aluminium, tin, copper
properties of aluminium
melting point - 660 degrees
composition- pure aluminium
properties - light, soft, ductile, good conductor of heat and electricity
main use- kitchen equipment, window frames
brazing
form, fix, or join by soldering with an alloy of copper and zinc at high temperature.
galvenising
coat (iron or steel) with a protective layer of zinc.
what is hdpe
High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. It is sometimes called “alkathene” or “polythene” when used for pipes.
what is ldpe
Low-density polyethylene is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene
what is pp
Polypropylene, also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.
what is abs
Acrylonitrile butadiene styrene is a common thermoplastic polymer.
thermoplastic
A thermoplastic, or thermosoftening plastic, is a plastic material, a polymer, that becomes pliable or moldable above a specific temperature and solidifies upon cooling. Most thermoplastics have a high molecular weight.
