MEP201 Mechanical Engineering Drawing 1st semester 2005-2006 S R Kale. --- Lecture #1 Types of Drawings and their uses in Engineering Projects

Until now : Machine Drawings Prepared and used by Mechanical engineer ME diploma holder Machinists, fabricators, welders, assemblers End result Component, (sub)assembly drawing(s) After manufacturing – component, sub(assembly) or machine Lec. 1 - Drawing types

Next step Someone uses the machine Not interested in component level details Needs overall information about the machine Needs different types of information Lec. 1 - Drawing types

Types of drawings General Arrangement / Layout drawing Schematic / Process flow diagram / Flow diagram Process and Instrumentation (P & I) Drawing Control system diagrams Piping drawing Wiring diagrams Process engineering drawings Project management drawings Lec. 1 - Drawing types

Example from engineering 1 MINI BAJA Bought out – engine, variable drive, brakes, tyres, steering column, shockers, + Manufactured – frame, drive, suspension, + Put them together AND make them work for the race (just like F1) Lec. 1 - Drawing types

Example from engineering 2 CSC AIR CONDITIONING PLANT Bought out – compressor, motor, heat exchanger, pumps, cooling tower, valves, switchgear, instruments, blowers, belts, controls, + At site by others – foundation, building, … Fabricated by vendor – frame, pipes, + Pictures of CSC A.C. plant room – slide show Assemble AND make them work 365 x 24 x 7 Lec. 1 - Drawing types

Example from engineering 3 BADAGRAH NALLA MINI HYDRO-ELECTRIC PLANT Visit on 28 June 2004 Lec. 1 - Drawing types

Users of these drawings Civil engineers Architects Electrical engineers Chemical engineers Machine builders Plant designers Fitters, welders, masons, machinists, Plus … Lec. 1 - Drawing types

Lecture Summary Besides machine drawings, there are several types of drawings; Information about machines - to be communicated with non-ME engineers as well as non-engineers; Integrating role; Inter-disciplinary nature of technology Lec. 1 - Drawing types