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In regards to the metal extrusion manufacturing process: 1. How would you ensure that you obtained...

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Mechanical Engineering

In regards to the metal extrusion manufacturing process:

1. How would you ensure that you obtained afine-grained microstructure in a metal casting?Carefully explain the mechanism/s that lead to the fine grainsize.

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3.9 Ratings (654 Votes)
There are three ways to control grain size iThermal iiChemical iiiMechanical In a standard casting process thermal control is the easiest to perform A low pouring temperature is prolonged so that the alloy can solidify and this controls the grain size In the chemical approach innoculants are used Innoculants are compounds that have lower softening point than the alloy    See Answer
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