This document summarizes the mid-semester industrial training report of Simran Anmol Suman at Guru Nanak Auto Enterprises Limited in Bundala, Punjab. It discusses heat treatment processes like annealing, case hardening, strengthening, tempering, carburizing and quenching. It then focuses on induction hardening, describing the principle, how it works by inducing current on the surface of a metallic workpiece to heat it to its critical temperature. It also discusses cleaning components using sand blasting before marking, and using a tempering furnace after induction hardening to increase toughness. Details are provided about the tempering furnace specifications and capacity. Finally, it briefly introduces magnetic particle testing to detect surface

1. MID SEMESTER VIVA OF INDUSTRIAL TRAINING REPORT
Submitted by:-
SIMRAN ANMOL SUMAN
GU-2017-3040
B.TECH MECHANICAL
8TH SEMESTER
GURU NANAK AUTO ENTERPRISES LIMITED ,BUNDALA PUNJAB
UNDER

2. INDUCTION HARDENING

3. Layout OF INDUSTRY

4. Heat Treatment
Heat Treatment Is The Process Of Heating The Metal, Holding It At
That Temperature, And Then Cooling It Back. During The Process, The Metal
Part Will Undergo Changes In Its Mechanical Properties. This Is Because The
High Temperature Alters The Microstructure Of The Metal.
Heat treatment techniques include
ANNEALING, CASE HARDENING,STRENGTHENING, TEMPERING, CARBURIZING
AND QUENCHING.

5. Induction Hardnening

6. Principle of Induction Hardnening
When the metallic workpiece is placed in a coil and current is
flown the coil then current is induced on the surface of the
metallic workpiece it is heated up to its critical temperature.

7. Cross section part on which induction
hardening is apply

8. Cleaning of Slag from Component
Before marking ,there is a process needed to clean the component called
sand blasting.It is necessary to clean the surface of component to prevent
slag.

9. Batch Number Marking

10. Tempering Furnace after induction hardnening
Tempering is a process of heat treating, which is used to increase the toughness of iron
based alloys. Tempering is usually performed after hardening, to reduce some of the
excess hardness, and is done by heating the metal to some temperature below the critical point
for a certain period of time, then allowing it to cool in still air

11. Tempering Furnace

12. Tempering Furnace
Furnace specifications: -
Type of furnace ––Oil fired
Fuel used ––Residual Furnace Oil (RFO)
Capacity of furnace-- 15ton
Maximum loading capacity of furnace ––12 trays at a time
Capacity of tempering furnace ––15 ton
Fuel consumption ––Approximately 100 liters per day

13. Magnetic Particle Testing Machine
Magnetic Particle Testing (MPT), also
referred to as Magnetic Particle
Inspection, is a nondestructive
examination (NDE) technique used to
detect surface and slightly subsurface
flaws in most ferromagnetic materials
such as iron, nickel, and cobalt, and
some of their alloys