Investment,Casting,One,The,Old business, insurance Investment Casting - One Of The Oldest Metal Forming Techniq
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InvestmentCastingInvestmentcasting also called lost-wax casting is one of the oldest known metalforming process. This industrial process is generally used for smallcastings but is also used to build aircraft engines, aircraft doorframes, steel and aluminum castings. Investment casting process isknown to produce complicated shapes that are difficult to make withdie casting. Though this process is a little expensive than diecasting or sand casting process but is useful when it comes tocreating intricate designs and complicated shapes.This Modernform of lost wax process was developed during wartimes when it wasfound practical for many wartime needs. Later, with the growth of thecivilian aircraft industry in the 1980's investment casting waslargely in demand. Today, powered with modern computer technology,robotics and modern casting techniques, 15% of the world's industrialcasting is produced by investment casting method. AboutInvestment Casting ProcessApattern is made is wax and a wax gating system is separately arrangedfor investment casting. The pattern and gating system are assembledand dipped in a slurry of refractory coating material like tetraethyl silicate, ethyl alcohol, hydrochloric acid, silica, magnesia,etc. The pattern is placed upside down and supported by flask. Nowthe molding mixture is poured around the pattern. The mold mixture isa combination of sand and and materials like alumina cement, ethylsilicate, etc.Themold is placed in a inverted position and heated, which helps the waxthat flow down to be collected for reuse. A specific temperature ismaintained in the mold for pouring of the alloy and for helpingpreserve the intricate casting designs. When the wax completely meltsout, the void space is filled with molten metal. Burnout processhelps in removing the wax and gas-forming material formed in themold. Applicationsof Investment CastingJetpropulsion for military and civilian aircrafts gave investmentcasting the foremost status in the casting industry. From heavycasting of 300Kg to small casting of 30 kg, this casting method isused for as wide for hi-tech industrial applications. This process ismore expensive than sand casting in terms of the casting techniques,but the equipment are relatively cheaper. But still, investmentcasting is largely relied on for complicated designs that cannot becasted using any other method. Investment casting finds widespreadapplication in spacecraft, jet engines, etc. Though this industry isheavily depended on the aircraft industry, it is is find our newfield of application to broaden its horizon. Advantagesof Using Investment CastingProducesimpossible and intricate designs Lesssurface finishing and machining required for the castings Producesnear net shaped as desired by the customer Castinghave excellent dimensional tolerances Awide range of metals and high performance alloys can be investmentcasted. Formore information on metal casting investment castings, sand casting,aluminum casting, die casting process, visit:http://www.industrialmetalcastings.com/ Article Tags: Investment Casting, Metal Forming, Casting Process, Sand Casting
Investment,Casting,One,The,Old