JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Casting: Steps involved in making a casting - Its applications - Patterns and Types of patterns – Pattern allowances and their construction. Types of casting processes – Solidification of casting. Welding: Classification of Welding Processes - Arc welding, forge welding – Resistance welding, Thermit welding, Explosive Welding, Electron Beam Welding and Laser Beam Welding. Inert Gas Welding, TIG Welding, MIG welding, soldering and Brazing, Heat affected zone in welding. Welding defects – causes and remedies – destructive and non- destructive testing of welds.

UNIT - II

Forming: Hot working, cold working, strain hardening, recovery, recrystallisation, and grain growth, Comparison of properties of Cold and Hot worked parts, rolling fundamentals – theory of rolling, types of Rolling mills and products. Blanking and piercing – Bending and forming – Drawing and its types – wire drawing and Tube drawing – coining –spinning – Types of presses and press tools.

UNIT - III

Extrusion of Metals: Basic extrusion process and its characteristics. Hot extrusion and cold extrusion - Forward extrusion and backward extrusion – Impact extrusion – Extruding equipment – Tube extrusion and pipe making, Hydrostatic extrusion. Forging Processes: Forging operations and principles – Forging methods

UNIT - IV

Machining: Mechanics of orthogonal cutting – Lathe: Merchant’s Force diagram, cutting forces – cutting speeds, feed, depth of cut, tool life, coolants, Machinability – Tool materials. Principle of working, specification of lathe – types of lathe – works and tool holding devices, Taper turning, Thread turning. Turret and capstan lathe – Principal features of automatic lathes. Shaping, slotting and planing machines – Principles of working – Principal parts – specification, classification, and operations performed. Drilling and Boring Machines – Principles of working, specifications, types, operations performed – tool holding devices – twist drill – Boring machines.

UNIT - V

Milling machine – Principles of working – specifications – classifications of milling machines – Principal features of horizontal, vertical and universal milling machines – Geometry of milling cutters – methods of indexing – Accessories to milling machines, kinematic scheme of milling machines. Lapping, honing, and broaching machines –

R16 B.TECH MECHATRONICS.

comparison of grinding, lapping and honing. Finishing Processes: Grinding – fundamentals – theory of grinding – classification of grinding machines – cylindrical and surface grinding machine-Tool and cutter grinding machine

TEXT BOOKS:

• 1. Manufacturing Technology (Vol. 1 & Vol. 2) / P.N. Rao/TMH/2nd Edition

REFERENCE BOOKS:

• 1. Principles of Metal Castings / Rosenthal/TMH
• 2. A Course in Workshop Technology/B.S. Raghuwamshi /Dhanpat rai & Sons
• 3. Manufacturing Engineering and Technology/Kalpakjin S/ Pearson Edu.
• 4. Principles of Machine Tools/ Bhattacharya A and Sen.G.C/ New Central Book Agency.
• 5. Elements of Work Shop Technology – Vol. II/Hajra Choudry/ Media Promoters.
• 6. Fundamentals of Metal Machining and Machine Tools/ Geofrey Boothroyd/ McGraw Hill R16 B.TECH MECHATRONICS.