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

2. 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

3. 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

4. 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

5. 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

6. 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

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

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

9. 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