n e railway

N E RAILWAYGORAKHPUR

PRESENTED BY:KRISHNA KUMAR YADAV

12525400444TH YEAR

MECHANICAL ENGINEERING

INTRODUCTION

INDIAN RAILWAYS N E RAILWAYS GORAKHPUR

MAIN SHOPS

MACHINE SHOP

HEAT TREATMENT SHOP

WHEEL SHOP

WELDING SHOP

MILL RIGHT SHOP

PAINT SHOP

SPRING SHOP

MAIN SECTIONS IN MACHINE SHOP

Lathe machine section

Drilling section

Shaping

Slotting

NC system

LATHE MACHINEA lathe is a machine tool which rotates the workpiece on its axis to perform various operations such as cutting, knurling, drilling, or deformation, facing, turning, with tools that are applied to the workpiece to create an object which has symmetry about an axis of rotation.

SHAPER

It works on quick-return mechanism.The cutting action is performed only in forward direction

SLOTTER

This is vertical shaping machine. The arm reciprocates in the vertical direction. Most parts are the same as shaper. Slotting is the process that is carried on this machine .

HEAT TREATMENT

Heat treatment is the process of heating and cooling of a material to change its physical and mechanical properties without changing the original shape and size.

VARIOUS TYPES OF HEAT TREATMENT Hardening.

Tempering

Annealing

Normalizing

Nitriding

Quenching

WELDING

Welding is a process of joining two similar or dissimilar metals with or without application of heat, pressure and filler rod.

OXY ACETYLENE WELDING

TYPES OF FLAME

Carburizing flame

Oxidizing flame

Neutral flame

2C2H2 + 5O2 = 4CO2 + 2H2O + HEAT

MATERIAL HANDLING EQUIPMENT

Over Head Crane

MATERIAL HANDLING EQUIPMENT

Small Industrial Truck

SPRINGS

Spring is an elastic object used to store mechanical energy such as impact load and sudden shock.