summer training ppt dlw varanasi

1. SUMMER TRAINNG REPORT
ON
DIESEL LOCOMOTIVE WORKS VARANASI
SUBMITTED BY
RAM BAHADUR
10BTD5020303
B.Tech(Mechanical Engg)
JNGEC SUNDERNAGAR

2. CONTENT
 INTRODUCTION OF DLW
 dieSel electric locomotive
 claSSification of locomotiveS
 Division in DLW
 LOCO FRAME SHOP
 LOCO PAINT SHOP
 Engine Erection Shop
 LIGHT MACHINE SHOP
 HEAT TREATMENT SHOP
 HEAVY WELDING SHOP

3. INTRODUCTION OF DLW
Diesel Locomotive Works (DLW) is a production unit under the
ministry of railways
This was setup in collaboration with American Locomotive Company
(ALCO), USA in 1961 and the first locomotive was rolled out in 1964
The production of these locomotives has now started and thus DLW
is the only manufacturers of Diesel Electric Locomotives with both
ALCO and General Motors technologies in the world

4. dieSel electric locomotive
• In a diesel-electric locomotive, the diesel engine drives an electrical
generator or alternator whose output provides power to the traction
motors. There is no mechanical connection between the engine and
the wheels.

5. claSSification of locomotiveS
Locos, except the older steam ones, have classification codes that
identify them. This code is of the formWDG5A “ [ gauge ][ power
][load ][ series ][ sub type ]”
The first letter (gauge)
W- Indian broad gauge
Y-meter gauge
Z- narrow gauge(2.5 ft)
N- narrow gauge (2 ft)

6. The Second letter (motive power)
D- Diesel
C- DC electric (can run under DC traction only)
A- AC electric (can run under AC traction only)
CA- Both DC and AC (can run under both

7. The third letter (load type)
G-good
P-passenger
M-mixed traffic ; both goods and passenger
S-Used for shunting
U-Electric multiple units (E.M.U.)
R-Railcars

8. The fourth letter (series)
The series digit identifies the horsepower range of the locomotive
example for the series letter ‘3’ means that the locomotive has power
over 3000 hp but less than 4000 hp.

9. The fifth letter (subtype)
An optional letter or number that indicates some smaller variations in
the basic model.

10. Division in DLW

11. BLOCK DIVISION

12. ENGINE DIVISION

13. LOCO DIVISION

14. LOCO FRAME SHOP
A locomotive frame is the structure that forms the backbone of the railway
locomotive
Locomotive frame giving it strength and support the superstructure element
The frame support axles attached to it.

15. Types of frame
Typesofframe
Plate frames
Bar frames
Cast steel frames

16. LOCO PAINT SHOP
The work of this shop to paint the coach and bogie
Section in paint shop
Coach painting
Letter section
Trimming section
Corrosion section
Polish Section

17. Material Used in Painting
Paint materials
Enemal materials
Varnish materials
Lacquer materials
Purpose of Painting
For protection against corrosion
For decoration
For covering

18. Engine Erection Shop
Lube oil container
Crankshaft and crankcase
Governor and fuel filter
Water circulator
Flywheel
OST shaft
Rocker arm
Alternator
Turbo super charger

19. LIGHT MACHINE SHOP
Grinding section
Gear section
Camshaft section
Belching section
Connecting rod section
Lathe section
Liners section
Drilling section
Milling section

20. HEAT TREATMENT SHOP
In this shop hardening, stress leaving, tempering
,normalizing,carburizing,quenching is done by help of conventional
and unconventional process
Here we doing hardening of cam-shaft,connecting rod,piston pin etc.
Hardening—At temp 800°c
Quenching—Water 8 to 10% polymer quench
Tempering—Below critical temp

21. HEAVY WELDING SHOP
Flame Cutting Component—Plasma cutting a process that is used to
cut steel and other material of different thickness using a plasma torch
in this process inert gas is blown at high speed out of nozzle at the
same time an electric arc is formed through that gas fro nozzle to the
surface being cut.
Fabrication of V Block Engine
Submerged Arc Welding

22. HEAVY WELDING SHOP
Flame Cutting Component—Plasma cutting a process that is used to
cut steel and other material of different thickness using a plasma torch
in this process inert gas is blown at high speed out of nozzle at the
same time an electric arc is formed through that gas fro nozzle to the
surface being cut.
Fabrication of V Block Engine
Submerged Arc Welding

23. THANK YOU