1020234110                              ADVANCED MANUFACTURING TECHNOLOGY
THEORY

CA4: Model examination should be conducted as per the end semester question pattern. The
marks should be converted to 20 marks for the internal assessment.
Question Pattern:
Answer Ten questions by selecting two questions from each unit. Each question carries 10
marks each.
Four questions will be asked from every unit, students should write any two questions. The
question may have two subdivisions only.

Syllabus Contents

  Unit I Types of plastics and processing of plastics
Types of Plastics: Engineering plastics – thermosets – comparison of
thermoplastic and thermosetting plastics – composite – structural foam, elastomers
– polymer alloys and liquid crystal polymers.
Processing of Plastics
Extrusion – single screw extrusion – twin screw extruders and types – Injection
moulding types: Plunger type – Reciprocating screw injection – structural foam
injection mould – sandwich moulding – gas injection moulding – calendaring and
rotational moulding. Design consideration for plastic components.

  Unit II Modern Machining ,Super finishing and Surface treatment processes
Modern Machining Processes:
Precision and ultra precision machining – Micro and nano machining and
High-speed Machining – hot machining-basic principles, working, applications,
advantages
Super finishing processes : introduction– working principle of Honing – lapping
–burnishing – polishing –buffing – advantages – applications

Surface treatment processes: Introduction – working principle – surface hardening
– shot peening – galvanizing – powder coating – thermal spraying – Vapour
deposition Processes types – Chemical Vapour Deposition (CVD) – Physical Vapour
Deposition (PVD) – sputtering – Electroplating – cladding – hot dipping – painting –
advantages – applications.

Unit III Unconventional Machining Processes
Introduction – classification – construction and working principle of abrasive jet
machining (AJM) – water jet machining (WJM) – ultrasonic machining (USM) –
electrical discharge machine (EDM) – electron beam machining (EBM) – laser beam
machining (LBM) – plasma arc machining (PAM) – Chemical Machining (CHM) –
Electro Chemical Machining (ECM) -advantages – disadvantages and applications.
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      Unit IV CNC Machines and CNC Programming
CNC machines:
Numerical control – definition – working principle of a CNC system – advantages of
CNC machines – difference between NC and CNC – construction and working
principle of turning centre – construction and working principle of machining centre
– machine axes conventions turning centre and machining centre – coordinate
measuring machine (CMM) – construction and working principle.
CNC Programming:
Introduction – Cartesian coordinate system – Polar coordinate system –Absolute
and incremental positioning – Purpose of G and M codes. – CNC program.
Procedure – Homing position – Offset setting -Work offset setting procedure – Tool
offset – CNC turning program using linear interpolation and circular interpolation.–
CNC milling program using linear interpolation and circular interpolation – .
compensation

unit V

Introuction – Classification –subtractive – additive – advantages and applications
– materials- Working Principles, Methods, Stereolithography, Laser Sintering, Fused
Deposition Method, 3D printing – Working Principle – Applications and Limitations,
Rapid tooling, Overview of other techniques in rapid manufacturing.