The document outlines a presentation about training at the Sri Lanka German Railway Technical Training Centre in Ratmalana. It introduces the training establishment, which started in 1858 and is the main rail transport organization in Sri Lanka. It has three main workshops, including the Ratmalana workshop which focuses on mechanical maintenance and design. The presentation describes the trainees experience in several workshops, including diesel engine repair, locomotive engine repair, foundry production, machining, tool making, blacksmithing, and carriage repair. It concludes that the training centre provides students with valuable practical experience in mechanical engineering and workshop operations.

1. Department of Mechanical & Manufacturing Engineering
Faculty of Engineering - UOR
WIMUKTHI K.A.H. ( EG/2012/2123)

2. Presentation Outline
• Introduction to Training Establishment
• Training Experience
• Safety
• Conclusion
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana2

3. Introduction to Training Establishment
• Started at 1858 by British Government
• Main purpose was transport goods than passengers
• Major transport service provider and only rail transport organization
• There are 03 main workshops in SLR (Rathmalana, Dematagoda & Maradana)
• Workshop mainly functioning with maintaining and designing
• Ratmalana workshop works with related to mechanical field
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana3

4. Chief Mechanical Engineers Work Shop - Rathmalana
• All the maintenance and repairing of
locomotives are done by this workshop
• Use lots of sub workshops for operations
• We got an experience from workshop
10,16,22,28,41,42,43,& 45
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana4
Fig.1 : CME workshop-Rathmalana

5. Training Experience
 Diesel engine Auxiliaries workshop (ws 10)
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana5
Repairs Turbochargers, Blowers, Compressors, Ex-pressors, Radiators, pumps
Fig.2 : Expressor Fig.3 : Turbo chargers Fig.4 : Radiator

6.  Diesel Hydraulic loco repair workshop (ws 28 )
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana6
Repairs S,W,Y class diesel locomotive engines
Fig.5 : S class MTU Engine Fig.6 : Damaged Piston Head
Fig.7 : Fuel Injector

7.  Foundry Shop[Ferrous & Non-Ferrous] (ws 43)
Produce Break shoes, Brake pads & Motor bearings by sand casting.
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana7
Fig. 8: process of sand casting Fig. 9 : Hand Molding Fig.10 : Machine molding

8. Foundry shop cont.…
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana8
Fig.11 : Cupola furnace
Fig.12 : Pouring melted cast iron
Fig. 13 : casting defects

9.  Bench fitting and machining workshop (ws 41)
Produce nuts & bolts, screws, motor bearings by machining. Repairs shock absorbers
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana9
Fig.14 :Heavy duty lathe machine Fig.15 : Drilling Machine

10.  Tool room (ws 42)
Aim of tool room
•Prepare all tools.
•Done special machining parts.
•Milling ,shaping ,grinding operations done
•Dies produce for foundry and blacksmith.
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana10
Fig 16 : engraver machine
Fig.17 : cutting tools

11.  Blacksmith Workshop (ws 45)
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana11
Produce parts of locomotives by Forging, Hammering, Welding
Fig.18 : Oxy acetylene
gas welding
Fig.19 : Electric Arc welding Fig.20 : Type of welding joints

12.  Carriage Group (ws 22)
Types of bogies
 Bissell bogie
 Jacobs bogie
 BR1 bogie
 Commonwealth bogie
 B4 bogie
 BT10 bogie
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana12
Repairing of the bogies and train boxes
Fig.21 : Bogie

13. Safety
 Eye and Face Protection
 Foot Protection
 Hand Protection
 Head Protection
 Hearing Protection
 Fire Protection
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana13

14. Conclusion
As an undergraduate of Mechanical and manufacturing
Engineering, Sri Lanka German Railway Technical Training
Centre is a good training place for Mechanical and Automobile
Engineering for modern industry.
got a good knowledge and huge experience about real world
applications of mechanical engineering and workshop practice.
Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana14

15. Department of Mechanical & Manufacturing Engineering
Sri Lanka German Railway Technical Training Centre -Ratmalana15