Manufacturing processes 29 - (CLO-1)I. Casting,II. Forging,II. MachiningIV. MoldingWhich of the following processes start with a material that is in a fluid or semi-fluid state and solidifies the material ina cavity?a)Only III-IVI-|I-|||I-IVI-|I 30 - (CLO-4) Which statement is true for sintering?a)Heat treatment to bond the metallic particles, thereby increasing strength and hardnessb)Usually carried out at between 70% and 90% of the metal's melting pointPart shrinkage occurs during sintering due to pore size reductiond)No need to secondary operations to increase density, improve accuracy after sinteringGenerally agreed among researchers that the primary driving force for sintering is reduction of surface energy

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29 - (CLO-1) I. Casting, II. Forging, II. Machining IV. Molding Which of the following processes start with a material that is in a fluid or semi-fluid state and solidifies the material in a cavity? a) Only I II-IV I-|I-II I-IV I-||

29 - (CLO-1) I. Casting, II. Forging, II. Machining IV. Molding Which of the following processes start with a material that is in a fluid or semi-fluid state and solidifies the material in a cavity? a) Only I II-IV I-|I-II I-IV I-||

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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

29 - (CLO-1)
I. Casting,
II. Forging,
II. Machining
IV. Molding
Which of the following processes start with a material that is in a fluid or semi-fluid state and solidifies the material in
a cavity?
a)
Only I
II-IV
I-|I-|||
I-IV
I-|I

30 - (CLO-4) Which statement is true for sintering?
a)
Heat treatment to bond the metallic particles, thereby increasing strength and hardness
b)
Usually carried out at between 70% and 90% of the metal's melting point
Part shrinkage occurs during sintering due to pore size reduction
d)
No need to secondary operations to increase density, improve accuracy after sintering
Generally agreed among researchers that the primary driving force for sintering is reduction of surface energy

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