K L University 2008 B.Tech Industrial and Production Engineering Manufacturing Science & Technology - Question Paper

UNIT-I
1.(a) Sketch the geometry of a single point cutting tool as per A.S.A. system with a neat
sketch. [Marks 6]
(b) Distinguish ranging from orthogonal and oblique cutting operations. [Marks 6]
(OR)
2.(a) discuss the geometry of milling cutter with a neat diagram. [Marks 6]
(b) Derive the shear angle(ø) in terms of rake angle(?) and chip thickness ratio(?c).[Marks 6]
UNIT-II
3.(a) explain the various kinds of chips that are formed during machining.How is the built-up edge formed? [Marks 7]
(b) discuss the sources of heat generation in metal cutting. [Marks 5]
(OR)
4. The subsequent data were found in an orthogonal cutting operation.
Cutting force 150N, Feed Force=300N, Rake angle=10°, Cutting speed=145m/min,Feed=0.25mm/rev, Width of cut=2.5mm, Chip thickness=0.45mm.Determine
(i) Shear plane angle (ii) Chip thickness ratio (iii) Power (iv) Velocity of chip along rake surface [Marks 12]
UNIT-III
5.(a) elaborate the desirable properties of cutting fluids? discuss the kinds and functions of cutting fluids. [Marks 6]
(b) discuss the abrasion and diffusion wear mechanisms. [Marks 6]
(OR)
6.(a) describe machinability of metals.Explain different criteria for machinability index.[Marks 6]
(b) discuss different tool failure types, causes and remedies. [Marks 6]
UNIT-IV
7.(a) Derive an expression for tool life for maximum production and minimum cost. [Marks 6]
(b) discuss the procedure for measurement of cutting forces in lathe. [Marks 6]
(OR)
8.(a) A tool life of 60min. is found at a speed of 30m/min and 30min at 60m/min.Determine
(i)Tool life formula
(ii)Cutting speed for eight min tool life [Marks8]
(b) discuss the principle of dynamometer for metal cutting. [Marks 4]
UNIT-V
9.(a) elaborate the desirable properties of tool materials?Explain H.S.S. and cemented carbides. [Marks 6]
(b) Compare the usage of diamond and cemented carbide tools for machining of metals. [Marks 6]
(OR)
10.(a) provide the composition of the subsequent tool materials and mention their salient features.
(i)Cast alloys (ii)High carbon steels (iii)Ceramics [Marks 6]
(b) Suggest suitable cutting tools for machining of copper,aluminium and cast iron. [Marks 6]

Earning:   Approval pending.