All Materials regarding to B.tech R-20 in Mechanical Engineering in 3rd Year 1st Semester with unit wise for Every Subjects are available.
👇👇Scroll Down for Important Questions and Topics Unit Wise 👇👇
| Mech 3-1 MMT&M | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5 | Download |
Mech 3-1 MMT&M Important Topics Questions
UNIT– I:
FUNDAMENTAL OF MACHINING:
Elementary treatment of metal cutting theory – element of cutting process – Single point cutting
tools, nomenclature of single point cutting tool, tool signature, tool angles, mechanism of metal
cutting, types of chips and chip formation – built up edge and its effects, chip breakers, mechanics of
orthogonal and oblique cutting –Merchant’s force diagram, cutting forces, velocity ratio, cutting
speeds, feed, depth of cut, tool life, Taylor’s tool life equation, simple problems - Tool wear, tool
wear mechanisms, machinability, economics of machining, coolants, tool materials and properties.
UNIT– II:
LATHE MACHINES:
Introduction- types of lathe - Engine lathe – principle of working - construction - specification of lathe - work holders and tool holders – accessories and attachments – lathe operations – taper turning methods and thread cutting – drilling on lathes – cutting speed and feed-depth of cut.
SHAPING, SLOTTING AND PLANNING MACHINES: Introduction - principle of working –principle parts – specifications - operations performed - slider crank mechanism - machining time calculations.
UNIT– III:
DRILLING & BORING MACHINES: Introduction – construction of drilling machines – types of
drilling machines - principles of working – specifications- types of drills – geometry of twist drill - operations performed –cutting speed and feed – machining time calculations - Boring Machines –fine Boring Machines – jig boring machines - deep hole Drilling Machines.
MILLING MACHINES: Introduction - principle of working – specifications – milling methods -
classification of Milling Machines –types of cutters - geometry of milling cutters – methods of indexing, accessories to milling machines - cutting speed and feed – machining time calculations
UNIT– IV:
FINISHING PROCESSES: Introduction - theory of grinding – classification of grinding
machines- cylindrical and surface grinding machines- tool and cutter grinding machines- different
types of abrasives- bonds, specification and selection of a grinding wheel-lapping, Honing &
Broaching operations- comparison to grinding.
SYSTEMS OF LIMITS AND FITS: Introduction, nominal size, tolerance, limits, deviations,
different types of fits -Unilateral and bilateral tolerance system, hole and shaft basis systems-
interchangeability, deterministic & statistical tolerances, selective assembly- International standard
system of tolerances, selection of limits and tolerances for correct functioning, simple problems
related to limits and fits, Taylor’s principle – design of go and no go gauges; plug, ring, snap, gap,
taper, profile and position gauges – inspection of gauges.
UNIT– V:
SURFACE ROUGHNESS MEASUREMENT: Differences between surface roughness and
surface waviness –Numerical assessment of surface finish-CLA, Rt., R.M.S. Rz, R10 values, simple
problems - method of measurement of surface finish – Profilograph, Talysurf, ISI symbols for
indication of surface finish.
OPTICAL MEASURING INSTRUMENTS: Tools maker’s microscope, Autocollimators, Optical
projector, Optical flats-working principle, construction, merits, demerits and their uses. optical
comparators.
TEXT BOOKS:
1) Manufacturing Processes / JP Kaushish/ PHI Publishers-2nd Edition
2) Manufacturing Technology Vol-II/P.N Rao/Tata McGraw Hill
3) Engineering Metrology – R.K. Jain/Khanna Publishers
REFERENCES:
1) Metal cutting and machine tools /Geoffrey Boothroyd, Winston A.Knight/ Taylor &
Francis
2) Production Technology / H.M.T. Hand Book (Hindustan Machine Tools).
3) Production Engineering/K.C Jain & A.K Chitaley/PHI Publishers
4) Technology of machine tools/S.F.Krar, A.R. Gill, Peter SMID/ TMH
5) Manufacturing Processes for Engineering Materials-Kalpak Jian S & Steven R Schmid/Pearson
Publications 5th Edition
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