Manufacturing Processes (a) Describe the 'true centrifugal casting' process with a neat sketch.(b) In a sand casting experiment that was performed using Aluminium alloy, it took 180seconds for a rectangular plate casting to solidify. The plate has a length of 100 mm,width of 80 mm and height of 10 mm.(i) Determine the value of the mold constant in Chvorinov's Rule.(ii) If the same alloy and mold type were used, find the total solidification time forproducing a hollow cylindrical casting with an outer diameter of 30 mm and heightof 50 mm. The core has a diameter of 20 mm.(c) The following defects as shown in Figure Q1(c) were found from sand casting.Review these defects and offer solutions to prevent these defects from occurring.SandMoldblowMisrunMoldMoldFigure Q1(c)

Answered: Image /qna-images/answer/d79b2e11-89ba-48ab-832a-1145cfa6bd1a.jpg

(b) In a sand casting experiment that was performed using Aluminium alloy, it took 180 seconds for a rectangular plate casting to solidify. The plate has a length of 100 mm, width of 80 mm and height of 10 mm. (i) Determine the value of the mold constant in Chvorinov's Rule.

(b) In a sand casting experiment that was performed using Aluminium alloy, it took 180 seconds for a rectangular plate casting to solidify. The plate has a length of 100 mm, width of 80 mm and height of 10 mm. (i) Determine the value of the mold constant in Chvorinov's Rule.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

Manufacturing Processes

(a) Describe the 'true centrifugal casting' process with a neat sketch.
(b) In a sand casting experiment that was performed using Aluminium alloy, it took 180
seconds for a rectangular plate casting to solidify. The plate has a length of 100 mm,
width of 80 mm and height of 10 mm.
(i) Determine the value of the mold constant in Chvorinov's Rule.
(ii) If the same alloy and mold type were used, find the total solidification time for
producing a hollow cylindrical casting with an outer diameter of 30 mm and height
of 50 mm. The core has a diameter of 20 mm.
(c) The following defects as shown in Figure Q1(c) were found from sand casting.
Review these defects and offer solutions to prevent these defects from occurring.
Sand
Mold
blow
Misrun
Mold
Mold
Figure Q1(c)

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