MD (B-TECH mechanical engineering 3rd)

Unit –I

Introduction: Principles of Drawing, Requirements of production drawing, Sectioning and

conventional representation, Dimensioning, symbols of standard tolerances, Machining Symbols,

introduction and Familiarization of Code IS: 296

Unit –II

Fasteners: Various types of screw threads, types of nuts and bolts, screwed fasteners, welding

joints and riveted joints

Punjab Technical University

Unit –III

Assembly and Disassembly:

a) Couplings: Solid or Rigid Coupling, Protected Type Flange coupling, Pin type flexible coupling,

muff coupling, Oldham, universal coupling, claw coupling, cone friction clutch, free hand sketch

of single plate friction clutch.

b) Knuckle and cotter joints

c) Pipe and Pipe Fittings: flanged joints, spigot an socket joint, union joint, hydraulic an

expansion joint

d) IC Engine Parts: Piston, connecting rod

e) Boiler Mountings: Steam stop valve, feed check valve, safety valve, blow off cock.

f) Bearings: Swivel bearing, thrust bearing, Plummer block, angular plumber block

g) Miscellaneous: Screw Jack, Drill Press Vice, Crane hook, Tool Post, Tail Stock, Drilling Jig.