Parhlad Sharma
Welder Instructor
Government Industrial Training Institute (ITI), Rania
Sirsa, Haryana India

Lesson Plan

Week No.CodeTheory ChaptorTime HoursDownload
Week 1stImportance of trade Training. – General discipline in the Institute – Elementary First Aid. – Importance of Welding in Industry – Safety precautions in Shielded Metal Arc Welding, and OxyAcetylene Welding and Cutting.7 Download
Week 2ndOAW-01
SMAW-01
Introduction and definition of welding. – Arc and Gas Welding Equipments, tools and accessories. – Various Welding Processes and its applications. – Arc and Gas Welding terms and definitions.7 Download
Week 3rdOAW-02
OAW-03
Different process of metal joining methods: Bolting, riveting, soldering, brazing, seaming etc. – Types of welding joints and its applications. Edge preparation and fit up for different thickness. – Surface Cleaning7 Download
Week 4thSMAW-02
SMAW-03
Basic electricity applicable to arc welding and related electrical terms &definitions. – Heat and temperature and its terms related to welding – Principle of arc welding. And characteristics of arc.7 Download
Week 5thOAGC-01
OAGC-02
OAGC-03
OAGC-04
OAGC-05
OAGC-06
Common gases used for welding & cutting, flame temperatures and uses. – Chemistry of oxy-acetylene flame. – Types of oxy-acetylene flames and uses.- Oxy-Acetylene Cutting
Equipment principle,parameters and application.
7 Download
Week 6thOAW-04
SMAW-04
OAW-05
Arc welding power sources: Transformer, Motor Generator set, Rectifier and Inverter type welding machines and its care & maintenance.. – Advantages and disadvantages of A.C. and D.C. welding machines6 Download
Week 7thSMAW-05
OAW-06
SMAW-06
Welding positions as per EN & ASME: flat, horizontal, vertical and over head position.- Weld slope and rotation. – Welding symbols as per BIS & AWS.6 Download
Week 8thOAW-07
SMAW-07
I&T-01
Arc length – types – effects of arc length. – Polarity: Types and applications. – Weld quality inspection, common welding mistakes and appearance of good and defective welds – Weld gauges & its uses.6 Download
Week 9thOAW-08
SMAW-08
SMAW-09
Calcium carbide properties and uses. – Acetylene gas properties and generating methods. – Acetylene gas Purifier, Hydraulic back pressure valve and Flash back arrestor.6 Download
Week 10thOAW-09
SMAW-10
Oxygen gas and its properties – Production of oxygen by Air liquefaction. – Charging process of oxygen and acetylene gases – Oxygen and Dissolved Acetylene gas cylinders 23 WELDER and Color coding for different gas cylinders. – Gas regulators, types and uses6 Download
Week 11thOAW-10
OAW-11
SMAW-11
Oxy acetylene gas welding Systems (Low pressure and High pressure). Difference between gas welding blow pipe(LP &HP) and gas cutting blow pipe – Gas welding techniques. Rightward and Leftward techniques.6 Download
Week 12thSMAW-12
OAW-12
SMAW-13
Arc blow – causes and methods of controlling. – Distortion in arc & gas welding and methods employed to minimize distortion – Arc Welding defects, causes and Remedies.6 Download
Week 13 & 14OAW-13
SMAW-14
Specification of pipes, various types of pipe joints, pipe welding all positions, and procedure. – Difference between pipe welding and plate welding. Pipe development for Elbow joint, “T” joint, Y joint and branch joint . Manifold system14 Download
Week 15thOAW-15
SMAW-16
Gas welding filler rods, specifications and sizes. – Gas welding fluxes – types and functions. – Gas Brazing & Soldering : principles, types fluxes & uses – Gas welding defects, causes and remedies7 Download
Week 16thOAW-16
SMAW-17
Electrode : types, functions of flux, coating factor, sizes of electrode Coding of electrode as per BIS, AWS, – Effects of moisture pick up. – Storage and baking of electrodes. – Special purpose electrodes and their applications.7 Download
Week 17thSMAW-18
SMAW-19
Weldability of metals, importance of pre heating, post heating and maintenance of inter pass temperature.7 Download
Week 18 and 19SMAW-20
SMAW-21
SMAW-22
SMAW-23
Classification of steel. – Welding of low, medium and high carbon steel and alloy steel. Effects of alloying elements on steel – Stainless steel types- weld decay and weldability.14 Download
Week 20thOAW-17
SMAW-24
OAW-18
Brass – types – properties and welding methods. – Copper – types – properties and welding methods.7 Download
Week 21OAW-19
SMAW-25
AG-01
Aluminium and its alloys, properties and weldability, Welding methods – Arc cutting & gouging,7 Download
Week 22OAW-20
OAW-21
Cast iron and its properties types. – Welding methods of cast iron.7 Download
Week 27I&T-02
I&T-03
I&T-04
I&T-05
I&T-06
Types of Inspection methods – Classification of destructive and NDT methods – Welding economics and Cost estimation.7 Download
Week 28GMAW-01
GMAW-02
Safety precautions in Gas Metal Arc Welding and Gas Tungsten Arc welding. – Introduction to GMAW – equipment – accessories. – Various other names of the process. (MIG/MAG/CO2 welding.)5 Download
Week 29GMAW-03
GMAW-04
GMAW-05
Advantages of GMAW welding over SMAW , limitations and applications – Process variables of GMAW. – Modes of metal transfer – dip or short circuiting transfer, spray transfer (free flight transfer) and globular transfer (intermittent transfer) and Pulsed metal transfer.5 Download
Week 30 & 31GMAW-06
GMAW-07
Wire feed system – types – care and maintenance. – Welding wires used in GMAW, standard diameter and codification as per AWS.- Types of shielding gases and gas mixtures used in GMAW and its applications. – Flux cored arc welding – description, advantage, welding wires, coding as per AWS.11 Download
Week 32GMAW-10
GMAW-11
Edge preparation of various thicknesses of metals for GMAW. – GMAW defects, causes and remedies7 Download
Week 33GMAW-12
GMAW-13
Heat input and techniques of controlling heat input during welding. – Heat distribution and effect of faster cooling7 Download
Week 34GMAW-14
GMAW-15
Pre heating & Post Weld Heat Treatment – Use of temperature indicating crayons.7 Download
Week 35GMAW-16
gmaw-17
Submerged arc welding process –principles, equipment, advantages and limitations – Electro slag and Electro gas welding processes– principles, equipments, advantages and limitations7 Download
Week 36GMAW-18
GMAW-19
Thermit welding processtypes, principles, equipments, Thermit mixture types and applications. – Use of backing strips and backing bars7 Download
Week 37, 38 and 39GTAW-01
GTAW-02
GTAW-03
GTAW-04
GTAW-05
GTAW process – brief description. Difference between AC and DC welding, equipments, polarities and applications. – Various other names of the process (TIG, Argonarc) – Power sources for GTAW – AC &DC Tungsten electrodes – types & uses, sizes and preparation – GTAW Torches- types, parts and their functions – GTAW filler rods and selection criteria. – Edge preparation and fit up. – GTAW parameters for welding of different thickness of metals – Pulsed TIG welding – brief description, pulse parameters slope up and slope down.21 Download
Week 40GTAW-06Argon / Helium gas properties – uses. – GTAW Defects, causes and remedy.7Download
Week 41GTAW-07Friction welding processequipment and application – Laser beam welding (LBW)and Electron beam welding(EBW)7 Download
Week 42GTAW-08
PAC-01
Plasma Arc Welding (PAW) and cutting (PAC) process – equipments and principles of operation. – Types of Plasma arc, advantages and applications.7 Download
Week 43RW-01
RW-02
Resistance welding process -types, principles, power sources and welding parameters. – Applications and limitations.7 Download
Week 44OAW-01
OAW-02
Metalizing – types of metalizing principles, equipments, advantages and applications
Manual Oxy – acetylene powder coating processprinciples of operation and applications
7 Download
Week 45OAW-03
OAW-04
Welding codes and standards – Reading of assembly drawing – Welding Procedure Specification (WPS) and Procedure Qualification Record ( PQR)7 Download
Week 46OAW-05
SMAW-01
SMAW-02
Hard facing/ surfacing necessity, surface preparation, various hard facing alloys and advantages of hard facing.6 Download