In a process of metal casting, the final product’s volume is 1275 cm3. Casting waste, scrap allowance, and shrinkage allowance are 8%, 12%, and 3.5%, respectively. The metal supplier pays $0.5/kg, irrespective of the type of metal. Determine the material cost, if the following metals are used for casting: a. Aluminum (ρ = 2.7 g/cm3 ; cost = $1.85/kg) b. Grey Iron (ρ = 6.8 g/cm3; cost = $1.38/kg)

In a process of metal casting, the final product’s volume is 1275 cm3. Casting waste, scrap allowance, and shrinkage allowance are 8%, 12%, and 3.5%, respectively. The metal supplier pays $0.5/kg, irrespective of the type of metal. Determine the material cost, if the following metals are used for casting: a. Aluminum (ρ = 2.7 g/cm3 ; cost = $1.85/kg) b. Grey Iron (ρ = 6.8 g/cm3; cost = $1.38/kg)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter35: Comfort And Psychrometrics

Section: Chapter Questions

Problem 13RQ: A house has 3500ft2 of floor space and a 9-ft ceiling. What is the cubic volume of the house?

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Concept explainers

Metal Casting

Metal casting is described as a manufacturing process in which a mold cavity is produced by sand, and molten metal is filled inside a mold cavity. The desirable shaped object is achieved after the solidification of molten metal. Large metal objects like machine beds, motor bodies, and others can easily be manufactured using metal casting. The place or shop where metal casting is performed is called foundry.

Question

In a process of metal casting, the final product’s volume is 1275 cm³. Casting waste, scrap allowance, and shrinkage allowance are 8%, 12%, and 3.5%, respectively. The metal supplier pays $0.5/kg, irrespective of the type of metal. Determine the material cost, if the following metals are used for casting:
a. Aluminum (ρ = 2.7 g/cm³; cost = $1.85/kg)
b. Grey Iron (ρ = 6.8 g/cm³; cost = $1.38/kg)

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