Aluminium alloys are not susceptible to which of the following?(a) Macro shrinkage(b) Drossing(c) Micro shrinkage(d) Solidification shrinkageThis question was posed to me in an interview.Question is taken from Aluminium and Its Alloys topic in chapter Foundry Introduction & Materials of Casting-Forming-Welding II

Aluminium alloys are not susceptible to which of the following?(a) Mac

1.	Aluminium alloys are not susceptible to which of the following?(a) Macro shrinkage(b) Drossing(c) Micro shrinkage(d) Solidification shrinkageThis question was posed to me in an interview.Question is taken from Aluminium and Its Alloys topic in chapter Foundry Introduction & Materials of Casting-Forming-Welding II
Answer» Correct answer is (a) MACRO shrinkage The best explanation: Aluminium alloys are SUSCEPTIBLE to DROSSING, micro shrinkages and solidification shrinkages, but not to macro shrinkages. For the PREVENTION of entering of dross in MOLD cavity, gating system is installed.

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