![]() Unit 4 elaborately discusses various sheet metal topics such as sheet metal characteristics, shearing, bending and drawing operations, stretch forming operations, formability of sheet metal, test methods, special forming processes, working principle and applications, hydro forming, rubber pad forming, metal spinning, introduction of explosive forming, magnetic pulse forming, peen forming, superplastic forming and micro forming Unit 3 has an in-depth dealing of various metal forming processes such as hot working and cold working of metals, open, impression and closed die forging processes with forging operations, rolling of metals, flat strip rolling, shape rolling operations, defects in rolled parts, rod and wire drawing, tube drawing, hot and cold extrusion. This unit also deals with types, causes and cure of weld defects. Unit 2 describes in detail about Operating principle, basic equipment, merits and applications of various joining processes such as gas welding, manual metal arc welding, gas tungsten arc welding, gas metal arc welding, submerged arc welding, electro slag welding, resistance welding, plasma arc welding, thermit welding, electron beam welding, friction welding and friction stir welding, brazing and soldering. Unit 1 deals with the sand casting, sand mould, type of patterns, pattern materials, pattern allowances, moulding sand properties and testing, types and applications cores, types and applications of moulding machines, various melting furnaces such as blast and cupola furnaces, principle of special casting processes such as shell, investment, ceramic mould, pressure die casting, centrifugal casting, CO2 process, stir casting and defects in sand castings. This book is written to serve the needs of undergraduate students embarking introductory course in Manufacturing Technology. ![]()
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