A PRESENTATION ON MECHANICAL WORKSHOP

NORH EAST RAILWAY GORAKHPUR

PRESENTED BYANAND KUMAR

12132400214th year

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.

INTRODUCTION OF MECHANICAL WORKSHOP GORAKHPUR

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

STATICS AND SPECIFICATION OF PLANT

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

LIST OF SHOPS IN THIS WORKSHOPS

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.

INSPECTION SHOP

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.

MACHINE SHOP

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 .

PAINT SHOP

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.

WHEEL AND SHAFT SHOP

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)

SPRING SECTION

Coiled spring

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.

HEAT TREATMENT SHOP

1. Annealing2. Normalizing3. Hardening4. Tempering5. Surface Hardening

The Following Process Involves-

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.

JIGS AND FIXTURE SHOP

WELDING SHOP

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

GAS WELDING

1.Neutral Flame1.Oxidising Flame2.Carburising Flame

The most important OFW process is oxyacetylene welding.

And three flames.

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

REFERENCES

THANKING YOU!