Bosh Flashcards
properties of copper
good conductor
Bronze properties
Brittle
Hard
good conductor
Properties of Aluminium
Light
Durable
good electric conductor
resists corrosion
Titanium
Light
strong
cope with high heat
Thermoplastic
Gets solidified when cooled
Can be reshaped
Recycleable
Thermoset
Solidified by heat
Cant be remoulded
Volume is…
Height x width x depth
Manufacturing issues
Toxic materials are burned and released to the atmosphere
Causes global warming
Causes air pollution
Injection moulidng…
Process that allows products to be manufactured in large quantities
advantage of injection moulding
make larger numbers of parts
Disadvantage of injection moulding
expensive
Destructive testing
To see how capable the product is and how much it can withstand
Non destructive testing
evaluate the properties of the product without causing damage
examples of Destructive testing
Crash testing
Stress testing
Vickers hardness tester
Examples of NDT
Weld verification
Leak testing
Laser testing
Sources of synthetic plastics
Oil and Gas
General properties of plastics
Good electrical and Good electric and thermal insulators
Good strength to weight ratio
Good atmospheric and chemical corrosion resistannce
Ferrous
Contains iron
Rusts
Non ferrous
Dosen’t contain iron
NO rust
Examples of Ferrous metals
Low carbon steel
Medium carbon steel
High carbon steel
Examples of Non ferrous metals
Aluminion
Copper
zinc
titanium
Composite metal
A material thats made if two or more materials for added strength and toughness
Smart material
A material that can have one or more of its properties changed by an external force
Examples of Composite materials
Glass reinforced plastic
Carbon fibre
Examples of smart material
Shape memory alloys
Shape memory polymers
Marking out , Metal
Engineers square, Scribe, Metal ruler, Engineers blue
Marking out Plastic
Engineers square, Marker pen
Cutting metal
Hack saw, CNC cutter, tin snips, shearing
Cutting plastic
Scroll saw, Coping saw, Laser cutter
Finishing metal
Galvanising, Spray paint, electropainting, andosing
Finishing plastic
wet and dry paper, Buffing
Shaping/casting metal
Sand casting, Die casting
Shaping/casting plastic
vacuum forming, injection moulding, blow moulding
Drilling metal
Centre punch,HSS drill bit
Turning metal
Lathe
Joining permanent metal
Welding , brazing soldering , rivets
Joining permanent plastic
solvent cement
Joining no permanent both
bolts, screws
