PR 2305 FOUNDRY AND WELDING TECHNOLOGY PRODUCTION ENGINEERING FIFTH SEMESTER SYLLABUS

PR 2305 FOUNDRY AND WELDING TECHNOLOGY

UNIT I CASTING PROCESS

Introduction to casting – pattern – materials allowances – coding – types – moulds –
mould making, sand – properties, types and testing of sands – core making – type of
cores – single box, two box and 3 box moulding processes, runner, riser and gate.

UNIT II WELDING PROCESSES

Introduction to soldering, brazing and welding types of joining – plane of welding – edge
preparation – filler material – flux – shielding gases – fusion welding – gas welding – gas
flame types – Manual arc welding – arc theory – power supply – braze welding – Thermit
welding – Resistance welding – spot, seam, projection, percussion & flash.

UNIT III SPECIAL CASTING PROCESSES

Pressure die casting – Centrifugal – continuous – investment – shell moulding –
squeeze – electro slag casting – CO2 moulding – Plaster mould castings – Antioch
process – Slush casting.

UNIT IV SPECIAL WELDING PROCESSES

Atomic H2 arc welding – Shielded gas arc welding GMAW & GTAW – Submerged arc
welding – Electro slag welding – friction welding – explosive welding – Underwater
welding – Diffusion bonding – EBW – LBW – PAW – Stud welding – welding of dissimilar
materials – Friction stir welding.

UNIT V TESTING OF CASTINGS & WELDMENTS

Causes and remedies for casting defects – welding defects – Destructive testing – NDT
– Dye penetrant – magnetic particle – X-ray, ultrasonic cell – studies in testing of joints &
castings.


TEXT BOOKS
1. Welding Engineering & Technology R.S.Parmer – Khanna Publishers – 2002.
2. Principle of metal casting – Heime, Looper and Rosenthal – Tata McGraw Hill – 2001
REFERENCES
1. Principle of Foundry Technology – P.L.John Tata McGraw Hill – 2003
2. Modern Welding Technology – B.Curry – Prentice Hall – 2002
3. Welding Principle & applications – Larry Jeff in Delmar – 1997
4. Foundry Engineering – Taylor HF Fleming, M.C. & Wiley Eastern Ltd., 93