Revised scheme for B.Tech. - Punjab Technical University
Revised scheme for B.Tech. - Punjab Technical University
Revised scheme for B.Tech. - Punjab Technical University
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PE-209 MANUFACTURING PROCESS –I<br />
PTU/BOS/ME/101/10-06-2005/BATCH-2003<br />
Internal Marks: 40 L T P<br />
External Marks: 60 3 0 0<br />
Total Marks: 100<br />
CASTING PROCESSES<br />
Introduction to metal casting types of patterns, their materials and allowances.<br />
Moulding materials: Moulding sand compositions and moulding sand properties, sand<br />
testing types of moulds, moulding machines cores core sands, types of cores, core<br />
banking elements of gating system, and risers and their design. Cupola and its<br />
operation charge calculations types of furnaces,<br />
Casting processes: sand casting, shell mould casting investment casting, permanent<br />
mould casting, full mould casting, vacuum casting. Die casting. Centrifugal casting,<br />
continuous casting.<br />
Casting defects, their causes and remedies.<br />
Metallurgical considerations in casting, Solidification of metals and alloys, directional<br />
solidification, segregation, nucleation and grain growth, critical size of nucleus,<br />
casting<br />
of copper alloys.<br />
Cleaning and finishing of castings, Testing and Inspecting of castings.<br />
WELDING<br />
Welding introduction and classification of welding, processes, welding terminology,<br />
general principles, welding positions, filler metals.<br />
Gas welding and gas cutting, principle, oxyacetylene welding equipment<br />
oxyhydrogen<br />
welding. Flame cutting.<br />
Electric are welding. Principle, equipment, types- MIG, TIG submerged arc and<br />
others.<br />
Welding electrodes, classification and selection of electrodes, welding arc and its<br />
characteristics, arc stability, arc blow. Thermal effects on weldment. Heat affected<br />
zone<br />
grain size and its control.<br />
Resistance welding- principle and their types i.e. spot, seam, projection, upset and<br />
flash<br />
Thermit welding, electro slag welding, friction welding, plasma are welding electron<br />
beam welding, atomic hydrogen hydrogen welding. Basic considerations in joint<br />
design,<br />
Welding defects, their cases and remedies.<br />
Brazing, braze welding and soldering.<br />
Books<br />
1. Heine, R.W. C.R. Loper and P.C. Rosenthal, Principles of metal casting Mc<br />
Graw Hill New York- 1967<br />
2. Welding <strong>Tech</strong>nology by R.S. Parmar, Khanna Publishers.