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1997 Course Powder Metallurgy

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Total No. of Questions :8] [Total No. of Pages : 2 P1129 [3864] - 25 B.E.(Prod. S/W) POWDER METALLURGY (1997 Course) (411085) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) What is powder metallurgy? Discuss in brief some of the modern developments in powder metallurgy. [8] b) Briefly discuss the advantages & limitations of structural parts produced by P/M techniques. Compare the P/M method with other fabricating methods. [8] Q2) a) What is meant by metal powder characteristics? Discuss the chemical, physical & technological characteristics of metal powders. [8] b) Describe the various methods used for the determination of particle size & particle size distribution of powder. [8] Q3) a) Critically explain the technology of production of iron powders by reduction, electrodeposition, thermal / carbonyl decomposition & atomisation methods. [8] b) What is blending or mixing? It is extremely desirable in the production of [8] P/M parts, explain in brief. P.T.O.

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