1--Defects of various castings and suggest suitable remedies?? 2-- Comparisons of quality aspects of metal casting processes ??

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Mechanical Engineering

1--Defects of various castings and suggest suitableremedies??
2-- Comparisons of quality aspects of metal castingprocesses ??

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1 General defects that occur in castings and its remedies a Blow holes This can be avoided by controlling the moisture content in the mould and avoiding the inclusion of moisture content in the molten metal This can also avoided by baking the cores properly which removes the moisture content By providing adequate venting in mold and cores which helps the evaporated gases escapes easily without and development of pressure inside the mold which forming blow holes b Shrinkage This defect can be avoided by ensuring the proper directional solidifiation by modifying or redesigning the gating system riser and chills according to the need of the customer c See Answer

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