The Gorakhpur mechanical workshop was established in 1903 to repair steam locomotives. It now overhauls 180 coaches per month, including AC and non-AC coaches. The workshop has several shops for inspection, machine work, painting, wheel and shaft repair, spring production, heat treatment, jigs and fixtures. It is located in Gorakhpur and employs 19 officers and 378 supervisors.

1. PRESENTED BY
ANAND KUMAR
1213240021
4th year

2.  Gorakhpur mechanical workshop is established in 1903 for repair and over hauling
purpose of steam locomotives.
 At present it is used to periodic over hauling and maintenance purpose of AC and
NON AC coaches.
 The workshop having capacity to overhauled 180 coaches per month.

3.  TOTAL AREA COVERED - 29.8 HECTARE.
 COVERED AREA –12.6 HECTARE.
 NUMBER OF OFFICERS-19
 NUMBER OF SUPERVISORS- 378
 TOWNSHIP AREA- GORAKHPUR
 POWER CONSUMPTION- 208662 KWH

4.  INSPECTION SHOP.
 MACHINE SHOP.
 PAINTING SHOP.
 WHEEL AND SHAFT SHOP.
 SPRING SECTION
 HEAT TREATMENT SHOP
 JIG AND FIXTURE.

5.  THIS SHOP IS USED FOR INSPECTION PURPOSES.
 A LIST OF EXPERTS CAME IN THE SHOP AND LISTED THE ERRORS AND
PROBLEM OCCURRED IN THE COACHES.
 THEN THEY MAKE A MAJOR OR MINOR LSIT FOR THE CAOACH.
 IF THE PROBLEM IS SMALL IT IS SOLVE IMMEDIATELY IN THAT SHOP
AND IN NOT IT IS SEND FOR THE FURTHER SHOPS.

6.  MACHINE SHOP IS DIVIDED INTO TWO CATEGORY-
 Automatic machine---( N.C.BORING,CNC LATHE,HEAVY DRILLING
MACHINE ETC.)
 MANUAL MACHINE---DRILLING MACHINE, SHAPER, SLOTTER,
PLANNER , LATHE,ETC.
 The different type of machining is done on this shop.
 For automatic machines skilled worker is required and in manual section average
worker can work.

7.  In this shop painting has been done of different parts of coaches and
bogie.
 Painting is done by either manually or by spray machines as per
requirement and depending upon work load .
 The spray machines consume more paint and wastage of paint is
more.
 Manual painting is slow but no wastage of paint .

8.  In this shop repair of wheel and shaft(axel) is undertaken.
 The wheel is first tested on wheel testing machine.
 And after that further treatment is done on the basis of result of testing.
 The shop consist of machine like-Axel journal testing machine, Hydraulic wheel
press machine , Axel turning lathe, vertical turning lathe.

9.  In this section coil and leaf spring are made.
 The testing of leaf spring is also done in this shop by (1)Visual and
magnetic crack detection. (2)Spring scraping machine. (3) D’ buckling
machine.
 Various other machines in this shop-Quenching tank, Tempering furnace,
Rolling machine, Cambering machine, Hardness testing machine.(BHN)

10. Coiled spring

11.  Heat treatment is the process of heating and cooling of material to change its
physical and mechanical properties without changing the original shape and size.
 In this shop machine parts are heated for long time below its melting point and after
that some parts are cooled in water and some parts are cooled in air or oil as per
physical and mechanical properties is required.

12. 1. Annealing
2. Normalizing
3. Hardening
4. Tempering
5. Surface Hardening

13.  If a component to be produced in small numbers then procedure adopted is
marketing out , setting on machine, clamping to machine table.
 Nevertheless it would be for producing same component in large quantities because
of economic reason. A faster and more profitable method calls for a device jig &
fixture.

15. WELDING SHOP
Type of welding operations used in shop
1. Welding
2. Soldering and
3. Adhesive bonding
4. Brazing

16. GAS WELDING
1.Neutral Flame
1.Oxidising Flame
2.Carburising Flame
The most important OFW process is oxyacetylene welding.
And three flames.

18.  GOOGLE IMAGES.
 WIKIPEDIA.ORG.IN
 INDIANRAILWAY.GOV.IN
 GHOSH & MALIK.