JNTUK R16 3-1 MC & MT Material/Notes PDF Download

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JNTUK R16 3-1 MC & MT Material/Notes PDF Download

Students those who are studying JNTUK R16 Mechanical Branch, Can Download Unit wise R16 3-1 Metal Cutting & Machine Tools Material/Notes PDFs below.

JNTUK R16 3-1 MC & MT Material/Notes PDF Download

OBJECTIVES:

• The course provides students with fundamental knowledge and principles in material removal processes.
• In this course, the students apply the fundamentals and principles of metal cutting to practical applications through multiple labs using lathes, milling machines, grinding machines, and drill presses, Computer Numerical Control etc
• To demonstrate the fundamentals of machining processes and machine tools.
• To develop knowledge and importance of metal cutting parameters.
• To develop fundamental knowledge on tool materials, cutting fluids and tool wear mechanisms.
• To apply knowledge of basic mathematics to calculate the machining parameters for different machining processes.

UNIT-1

FUNDAMENTAL OF MACHINING: Elementary treatment of metal cutting theory – element of cutting process – geometry of single point cutting tool, tool angles, chip formation and types of chips – built up edge and its effects, chip breakers, mechanics of orthogonal cutting –Merchant’s force diagram, cutting forces, cutting speeds, feed, depth of cut, tool life, tool wear, machinability, economics of machining, coolants, tool materials and properties.

UNIT-2

LATHE MACHINES: Engine lathe – principle of working, specification of lathe – types of lathe – work holders tool holders – box tools taper turning, thread turning – for lathes and attachments, constructional features of speed gear box and feed gear box. Turret and capstan lathes – collet chucks – other work holders – tool holding devices – box and tool layout. Principal features of automatic lathes – classification – single spindle and multi-spindle automatic lathes – tool layout and cam design for automats.

UNIT-3

SHAPING, SLOTTING AND PLANNING MACHINES: Principles of working – principal parts – specifications, operations performed, machining time calculations. DRILLING & BORING MACHINES: Principles of working, specifications, types, operations performed – tool holding devices – twist drill – Boring Machines – fine Boring Machines – jig boring machine, deep hole Drilling Machine.

UNIT-4

MILLING MACHINES: Principles of working – specifications – classification of Milling Machines – principal features of horizontal, vertical and universal Milling Machine, machining operations, types of cutters, geometry of milling cutters – methods of indexing, accessories to milling machines.

UNIT-5

FINISHING PROCESSES: 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.

UNIT-6

JIGS & FIXTURES: Principles of design of jigs and fixtures and uses, classification of jigs & fixtures, principles of location and clamping, types of clamping & work holding devices, typical examples of jigs and fixtures. CNC MACHINE TOOLS: CNC Machines, working principle, classification, constructional features of CNC machines, CNC controller, types of motion controls in CNC machines, applications of CNC machines.

TEXT BOOKS:

1. Manufacturing Processes / JP Kaushish/ PHI Publishers-2nd Edition
2. Manufacturing Technology Vol-II/P.N Rao/Tata McGraw Hill

REFERENCE BOOKS:

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-Kalpakjian S & Steven R Schmid/Pearson Publications 5th Edition

OUTCOMES:

• 1) Apply cutting mechanics to metal machining based on cutting force and power consumption.
• 2) Operate lathe, milling machines, drill press, grinding machines, etc.
• 3) Select cutting tool materials and tool geometries for different metals.
• 4) Select appropriate machining processes and conditions for different metals.
• 5) Learn machining economics.
• 6) Design jigs and Fixtures for simple parts.
• 7) Learn principles of CNC Machines

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