The Production, characteristics and use of aluminium and its alloys in engine applications
Aluminium is a strong, durable and lightweight metal. In today's energy-conscious society, these three basic properties combine to make the metal the preferred material of construction for transport applications, where weight saving to reduce fuel consumption and to increase load carrying capacity is vital. Products like motor cars, is an obvious example. It is not surprising therefore, that the use of aluminium in all its various forms - plate, sheet, extrusions, castings and forgings - is increasing across the whole range of transport applications. The use of aluminium for automobile engine blocks and cylinder heads, heat exchangers, transmission housings, engine parts and automobile wheels has risen steadily over the last decade. The reasons for the extensive use of aluminium lies in the diverse range of properties (mechanical, physical etc.) exhibited by aluminium and its alloys: „h A key property is low density. Aluminium is only one-third the weight of steel. „h Aluminium and most of its alloys are highly resistant to most forms of corrosion. The metal's natural coating of aluminium oxide provides a highly effective barrier to the effects of air, temperature, moisture and chemical attack.
„h Crankcase sump, The crankcase sump may be made from a single sheet-steel pressing or an aluminium alloy casting with cooling fins and sometimes strengthening ribs. The preference is for the cast aluminium alloy to be used due to its weight saving capabilities and it is better at dissipating heat. There is no general requirement for the sump to contribute to crankcase rigidity, but with some transverse front-wheel drive engines the final-drive housing and sump form an integral unit. In this case an aluminium alloy casting would normally be used, which has been designed to withstand transmission loads and therefore must have structural stiffness report. 3. Baker A, The Component Contribution, ENGINE PROGRESS THROUGH THE SPECIALIST MANUFACTURERS, 1979, Hutchinson Benham 2. Heisler H, Advanced engine technology, 1998, Arnold
Some common words found in the essay are:
Examples Die, , Cylinder Liners, Metal Matrix, aluminium alloys, aluminium alloy, Aluminium Association, Ostermann Aluminium, Heisler Vehicle, Heisler Advanced, cast iron, COMBUSTION ENGINES, cylinder liners, thermal expansion, „h aluminium, thermal conductivity, World Aluminium, pump casing 05, 05% manganese, weight saving, cylinder head, silicon 05% manganese, weight saving capabilities, aluminium alloy casting, properties aluminium alloys,
Approximate Word count = 1543
Approximate Pages = 6 (250 words per page double spaced)
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