Term
- Raw materials are processed and turned into products by manufacturing and assembling
- Products are assembled from individually manufactued components
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Definition
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Term
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Definition
| Required to maintain stock or satify an order |
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Term
Design for:
Manufactue
Assembly
Maintainability |
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Definition
Design should be manufacturable:
- with least possible operations
- with simple operations
- from standard stock material
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Term
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Definition
- Material compatibility with tooling and processing costs
- material preoperty compatibility with processing
- material preoperty compatibility with fabrication
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Term
Biocide: antibacterial - silver, copper
eg. Gold is conductive but not a biocide
Bioinert: doesn't react with biological tissue (can be used in the body) - titanium
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Definition
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Term
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Definition
- Casting
- Forging
- Rolling
- Extrusion
- PM - powder metallurgy
- Machining
- Fabrication
- 3D-Printing
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Term
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Definition
melt metal in furnace
Pour into mold cavity
allow to cool & solidify
finishing
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Term
| Metal casting: Advantages |
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Definition
Complex shapes: cavities, passageways, non-symetric shapes, curved surfaces
can be used for large parts
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Term
| Metal casting: Disadvantages |
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Definition
- Poor material properties
- defects: voids, porosity, ect.
- poor dimensional control
- poor surface finish
- slow
- wastes material
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Term
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Definition
- low mp (232 °C)
- anticorrisive
- non-toxic
- low strength
Generally alloyed with other metals for casting
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Term
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Definition
- low mp (327 °C)
- anticorrosive
- toxic
- low strength (alloyed with antimony (Sb))
- very dense
Fishing weights, shots, ect. |
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Term
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Definition
- moderate mp (419 °C)
- corrosive (sacrificail annode)
- flows well when molten
Cheap castings |
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Term
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Definition
- higher mp (649 °C)
- good stregth/weight ratio
- poor corrosion in marine environment
- flammable
- expensive
special engine parts |
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Term
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Definition
-
higher mp (660 °C)
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good sub. for Magnesium
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non-toxic
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moderate strength
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good conductivity
motor housing, aircraft castings |
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Term
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Definition
- anticorrosive
- biocide
- bronze alloys - good bearings
- brass alloys - easily machined and soldered
plumbing, marine propellers |
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Term
NIckel (Ni) & Cobalt (Co)
(1435 °C, 1495 °C)
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Definition
- magnetic
- good for high temp parts
gas turbine blades
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Term
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Definition
- good strength/weight ratio
- anticorrosive
- bioinert eg. tooth, hip implants
- highly reactive when molten
military & spacecraft parts |
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Term
Refractory metals
Molybdenum (Mo), Niobium (Nn), Tungsten (W)
(2610 °C), (2740 °C), (3410 °C) |
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Definition
- oxidize rapidly when molten
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