Resistant Materials

yognif
Mind Map by , created over 6 years ago

GCSE Music Mind Map on Resistant Materials, created by yognif on 05/30/2013.

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yognif
Created by yognif over 6 years ago
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Resistant Materials
1 Woods
1.1 Hardwoods

Annotations:

  • A more expensive wood that comes from deciduous trees and it takes longer to grow. has a higher value as it looks nicer, is stronger and takes a long time to grow.
1.1.1 Beech

Annotations:

  • A good firewood, medium weight, high abrasion resistance and is very tough. can warp in the presence of moisture fluctuations
1.1.2 Oak

Annotations:

  • Hard, heavy but also fairly elastic. it is very resistant to weathering and moisture.
1.1.3 Ash

Annotations:

  • Excellent firewood, heavy and hard similar to oak, high abrasion resistance and elasticity.
1.1.4 Mahogany

Annotations:

  • very compact dark coloured wood with little pockets. Used as a veneer because it is very expensive
1.1.5 Teak

Annotations:

  • high in oil and rubber content. one of the hardest and toughest hardwoods there are. It is resistant weathering and rotting
1.2 Softwoods

Annotations:

  • Used for cheaper products being made on a large scale. grows from coniferous trees and grows fast
1.2.1 Scots pine
1.2.2 Parana pine
1.2.3 Western red cedar
1.2.4 Pitch pine
1.2.5 Yew
1.2.6 European redwood pine
2 Metals
2.1 Ferrous

Annotations:

  • Metals that contain iron
2.1.1 Cast iron

Annotations:

  • A steel containing more than 2% carbon is named cast iron and is used with
2.1.2 Mild steel

Annotations:

  • Mild steel contains 0.05% to 0.3% making it both malleable and ductile.
2.1.3 Carbon steel

Annotations:

  • Carbon affects the properties of steel because it can increase brittleness and hardness making it suitable for drill bits and other tools.
2.1.4 Stainless steel

Annotations:

  • Doesn't rust easily so us used in cutlery. A chromium layer too thin to see stops rusting  
2.2 Non-ferrous

Annotations:

  • Metal not contains any iron
2.2.1 Copper

Annotations:

  • Good ductile properties which means it is good for wiring as it also conducts electricity well
2.2.2 Alumnium

Annotations:

  • Is a structurally tough metal which is also light and used in airplane bodies. comes from the ore bauxite.
2.2.3 Zinc

Annotations:

  • is brittle but becomes malleable at temps of 150^C. very resistant to corrosion and weathering so is used on bin covers. stops steel from rusting by galvanation
2.2.4 Brass

Annotations:

  • Malleable and has good acoustics so is good for musical instruments and piping.
2.2.5 etc.
2.2.6 Lead

Annotations:

  • used in bullets, they make a slightly more ductile version of steel
2.2.7 Tin

Annotations:

  • Malleable, Ductile and has a shiny crystaline stucture
3 Sketches
3.1 Modelling

Annotations:

  • Can be prototype modelling which involves using cheap materials to see what the product would look like. Can be 3D modelling which is virtual so it can be edited without expense and sent by email to companies or a 3D printer
3.2 Orthographic

Annotations:

  • The cross sectional view of a joint or fitting
3.3 Free hand

Annotations:

  • pencil & paper, no ruler
3.4 Isometric

Annotations:

  • Has angles of 30 and 150 degrees designed for drawing 3D representation images
3.5 Exploded

Annotations:

  • a diagram that clearly show the assembly process and components involved in the construction of a product
3.6 Dimensioned

Annotations:

  • a 2D and a 3D image of a product
4 Plastics
4.1 Thermoplastics

Annotations:

  • Have no covalent bond cross-links so the plastic can melt and be re-moulded.
4.1.1 HDPE
4.1.2 LDPE
4.1.3 PP
4.1.4 HIPS
4.1.5 Nylon
4.1.6 PVC
4.1.7 Acrylic
4.2 Thermosetting plastics

Annotations:

  • Have cross-links so once set the plastic will remain in its shape. heating will only char and crack the plastic.
4.2.1 MF
4.2.2 Epoxy Resin
4.2.3 PR
4.2.4 Phenol Formaldehyde
4.2.5 Urea Formaldehyde
5 Health & Safety

Annotations:

  • RED - Do not do it (circle) BLUE - Mandatory action (circle)  YELLOW - Caution of hazards(triangle) GREEN - Escape or aid (rectangle)
5.1 Protection

Annotations:

  • Gauntlets Goggles Dust mask Ear defenders Gloves Aprons Visors
6 Designers

Annotations:

  • Charles Makintosh Philippe Starck James Dyson Frank Wright Ettore Sottsass
6.1 Style of product

Annotations:

  • Bauhaus Art Deco Art Nouveau De Stijl Memphis Shaker
7 Environmental Issues

Annotations:

  • Finite resources like coal and oil are needed for production but release greenhouse gases Employers have to think about working conditions for ethics and at their carbon foot-print
7.1 6 R's

Annotations:

  • Reduce Recycle Re-use Repair Refuse Re-think
8 Scale of production

Annotations:

  • One-off production is when a sculpture or requested item is crafted only once. Batch production is when a series of identical products are made in small or large quantities. Another series is produced after Mass production involves worker producing large quantities of goods on a production line conveyor belt. Continuous production is a 24/7 production by robots to meet demands. Usually worse quality
9 Quality control

Annotations:

  • A sample is taken one every ... and it is tested for its dimensions, quality and ergonomics. if it fails then the whole batch will be inspected and the machine corrected. There are often anomalies.
10 Tools
10.1 Saws

Annotations:

  • tenon coping band jig scroll/fret hack junior
10.2 CAM machines

Annotations:

  • Laser cutter Pillar drill 3D printers
10.3 Measuring

Annotations:

  • Centre punch Scriber Metal rule Mitre box Mitre square Tri square Tape measure Marking gauge Micrometer Venier gauge
10.4 General Manu.

Annotations:

  • Claw hammer Cross pein hammer Ball pein hammer Planishing hammer Rubber/wooden mallet Chisels: Frimer, Beveled edge, mortise, gouge Plane
10.5 Clamps

Annotations:

  • Woodwork vice Engineering vice Machine vice G clamp Sash clamp Speed clamp Corner clamp
11 Joints

Annotations:

  • Butt joint Halving joint Dowel joint Lap joint Housing joint Mortise and tenon  Dovetail joint Finger joint
11.1 Welding

Annotations:

  • Gas Welding Soft soldering metal inert gas often used in schools to weld steels. tungsten inert gas i s used to form non-ferrous metals together silver soldering works at low temperatures.
12 Adhesives

Annotations:

  • PVA Epoxy resin Latex adhesive Contact adhesive Hot melt glue
13 Manufacture processes

Annotations:

  • Casting-put sand and oil in a cope and drag forming a mould for complicated parts in a car. Injection moulding Blow moulding
14 Smart materials
15 The Lathe

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