Machine Drawing

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This text-book follows (i) The metric system of length measurement and (ii) First-angle method of orthographic projection. However, the third-angle projection method has not been completely ignored. This edition is thoroughly revised and enlarged by adding substantial newmaterial, numerous figures and also new worked-out examples. It describes in an easy-to-follow style and with application of the principles of orthographic projection, forms, proportions and uses of simple machine, engine and boiler parts. Chapters on elements of production drawings, assembly drawings and elements of computer aided drafting (CADr) are also given. The techniques of freehand sketching, dimensioning, conversion of pictorial views, sectional views and interpretation of view are treated in clear and simple manner. Most of the orthographic views are accompanied by the pictorial views of the objects to enable the students to visualize the shapes easily. The book covers the syllabi of Machine Drawing to meet the requirements of Engineering Degree students of all the Indian Universities as well as Diploma courses in various branches of Engineering conducted by the Department of Technical Education for I.T.I. students and also to the candidates reading for the A.M.I.E. and U.P.S.C. Examination. Table Of Contents Chapter 1: Principles of Projection Chapter 2: Sheet Layout and Sketching Chapter 3: Lines, Lettering and Dimensioning Chapter 4: Conversion of Pictorial Views into Orthographic Views Chapter 5: Sectional ViewsChapter 6: Orthographic Reading or Interpretation of Views Chapter 7: Screw Threads Chapter 8: Screwed Fastenings Chapter 9: Keys, Cotter-Joints, Pin-Joints Chapter 10: Pipe Joints Chapter 11: Valves Chapter 12: Riveted Joints and Welded Joints Chapter 13: Shaft Bearings, Brackets and Hangers Chapter 14: Shaft Couplings, Clutches and Brakes Chapter 15: Pulleys Chapter 16: Spur Gearing Chapter 17: Engine Parts Chapter 18: Elements of Production Drawing Chapter 19: Assembly Drawings Chapter 20: Elements of Computer-Aided Drafting Index