Welder

Welder
(Engineering Trade) 
(Duration: One Year)

NSQF Level-4 (Revised in 2019) Syllabus - Click here

Courtesy :DET Haryana & Bharat Skills

Sr.

No.

Week No. / Chapter

Topics

Videos Link

1

1 Week

Importance of trade Training. General discipline in the Institute  

https://www.youtube.com/watch?v=zDXhQFBgLTQ

2

1 Week

Elementary First Aid.

https://www.youtube.com/watch?v=X9AaTk8YlVM

3

1 Week

 Importance of Welding in Industry

https://www.youtube.com/watch?v=wXA-ULF8FEw

4

1 Week

Safety precautions in Shielded Metal Arc Welding,

https://www.youtube.com/watch?v=rsBXTRJJvVA

5

1 Week

 Safety in  OxyAcetylene Welding and Cutting.

https://www.youtube.com/watch?v=sr_03C57Phs

6

2 Week

Introduction and definition of welding. 

https://www.youtube.com/watch?v=0PYqceXZ2F8

7

2 Week

 Gas Welding equipment, tools, and accessories

https://www.youtube.com/watch?v=BLRbYO3yAW4

8

2 Week

Arc Welding equipment, tools, and accessories

https://www.youtube.com/watch?v=zV16K4bI5hE

9

2 Week

Various Welding Processes and its applications.

https://www.youtube.com/watch?v=_xPlocjTyas

10

2 Week

 Arc and Gas Welding terms and definitions. 

https://www.youtube.com/watch?v=0upea4JIotE

11

3 Week

The different processes of metal joining methods: Bolting, riveting, soldering, brazing, seaming, etc.  

https://www.youtube.com/watch?v=FIjudBE1KnY

12

3 Week

Types of welding joints and its applications.

https://www.youtube.com/watch?v=JhGYPvJYVQw

13

3 Week

Edge preparation and fit-up for different thicknesses. Surface Cleaning

https://www.youtube.com/watch?v=Bk16izPuN0g

14

4 Week

Basic electricity applicable to arc welding and related electrical terms &definitions.

https://www.youtube.com/watch?v=qcOnF1ASzCU

15

4 Week

Heat and temperature and its terms related to welding

https://www.youtube.com/watch?v=trTQfNZWSf4

16

4 Week

Principle of arc welding

https://www.youtube.com/watch?v=OJQra1bFmEQ

17

4 Week

characteristics of arc

https://www.youtube.com/watch?v=1N-ilrraGZM

18

5 Week

Common gases used for welding & cutting, flame temperatures and uses. - Chemistry of oxy-acetylene flame. - Types of oxy-acetylene flames and uses. - 

https://www.youtube.com/watch?v=BVHhHnhdj-M

19

5 Week

Oxy-Acetylene Cutting Equipment principle, parameters, and application

https://www.youtube.com/watch?v=NgTGrMdJoks

20

6 Week

Arc welding power sources: Transformer

https://www.youtube.com/watch?v=HymnC5Pdrn0

21

6 Week

MG Set

https://www.youtube.com/watch?v=6AVHdu1-Wyg

22

6 Week

Rectifier Set

https://www.youtube.com/watch?v=eDpFJ6IcH4E

23

6 Week

Invertor type welding Machine

https://www.youtube.com/watch?v=5jaHASNoHZE

24

6 Week

 Advantages and disadvantages of A.C. and D.C. welding machines

https://www.youtube.com/watch?v=DZ6B8Ed2FLg

25

7 Week

Welding positions as per EN &  ASME: flat, horizontal, vertical and overhead position. 

https://www.youtube.com/watch?v=9qwbaWM7bzc

26

7 Week

Weld slope and rotation

https://www.youtube.com/watch?v=Jl2WNI9cZls

27

7 Week

Welding symbols as per BIS & AWS

https://www.youtube.com/watch?v=FbWo3QRJepI

28

8 Week

Arc length – types – effects of arc length. 

https://www.youtube.com/watch?v=urMbbw6dRpY

29

8 Week

Polarity: Types and applications

https://www.youtube.com/watch?v=g8t93rfsDL4

30

8 Week

Weld quality inspection, common welding mistakes and appearance of good and defective welds

https://www.youtube.com/watch?v=DNcNX5wTxw0

31

8 Week

Weld gauges & its uses

https://www.youtube.com/watch?v=av3KU1dCfek

32

9 Week

Calcium carbide properties and uses. 

https://www.youtube.com/watch?v=X9Fi7QsqN98

33

9 Week

Acetylene gas properties and generating methods. - 

https://www.youtube.com/watch?v=Sr76Cg8wMj0

34

9 Week

Acetylene gas Purifier

https://www.youtube.com/watch?v=LIQbIpr8uTo

35

9 Week

The hydraulic back pressure valve

https://www.youtube.com/watch?v=PtYfiJi4YE0

36

9 Week

Flashback arrestor

https://www.youtube.com/watch?v=ZdeYXPGnO9E

37

10 Week

Oxygen gas and its properties 

https://www.youtube.com/watch?v=-BfegIT7ClM

38

10 Week

Production of oxygen by Air liquefaction  

https://www.youtube.com/watch?v=rYDBASubIdk

39

10 Week

Charging process of oxygen and acetylene gases 

https://www.youtube.com/watch?v=9rmh3JXj8Zw

40

10 Week

 Oxygen cylinder, Dissolved Acetylene gas cylinders,  Color coding for different gas cylinders

https://www.youtube.com/watch?v=4GK4S2ZCcv0

41

10 Week

 Gas regulators, types and uses.

https://www.youtube.com/watch?v=Xy7LqRc7K5Q

42

11 Week

Oxyacetylene gas welding Systems (Low pressure and High pressure)

https://www.youtube.com/watch?v=6e5PEUHqGGE

43

11 Week

Difference between gas welding blowpipe(LP & HP) and gas cutting blowpipe

https://www.youtube.com/watch?v=LqbRJAJFvNc

44

11 Week

Gas welding techniques. Leftward

https://www.youtube.com/watch?v=2EdakwNY4SE

45

11 Week

Gas welding techniques. Rightwar

https://www.youtube.com/watch?v=p1p8EwrM8eY

46

12 Week

Arc blow – causes and methods of controlling. 

https://www.youtube.com/watch?v=ZyHOCDE23KQ

47

12 Week

 Distortion in arc & gas welding and methods employed to minimize distortion

https://www.youtube.com/watch?v=Cl8Ilbxa2jo

48

12 Week

Arc Welding defects, causes and Remedies.

https://www.youtube.com/watch?v=_e-3PJXVfGU

49

12 Week

Arc Welding defects, causes and Remedies.

https://www.youtube.com/watch?v=yjBhZ3rXpRg

50

13 Week

Specification of pipes

https://www.youtube.com/watch?v=LH0I5DrwrXQ

51

13 Week

various types of pipe joints

https://www.youtube.com/watch?v=wjlAFq3vKxs

52

13 Week

pipe welding all positions, and procedure

https://www.youtube.com/watch?v=7663J0weqNA

53

13 Week

Difference between pipe welding and plate welding

https://www.youtube.com/watch?v=9qwbaWM7bzc

54

14 Week

Pipe development for Elbow joint,

https://www.youtube.com/watch?v=a2PTTiE8CHA

55

14 Week

Pipe development  “T” joint

https://www.youtube.com/watch?v=Ch8rWglV0jA

56

14 Week

Pipe development  Y joint

https://www.youtube.com/watch?v=ueCx6lmqJD4

57

14 Week

Pipe development for  branch joint 

https://www.youtube.com/watch?v=ZhbOH2LjfW8

58

14 Week

Manifold system

https://www.youtube.com/watch?v=ibUJYEu3cpU

59

15 Week

Gas welding filler rods, specifications and sizes. 

https://www.youtube.com/watch?v=iXi_lg9tO_4

60

15 Week

 Gas welding fluxes – types and functions

https://www.youtube.com/watch?v=lDFasgWmMZQ

61

15 Week

Gas Brazing & Soldering : principles, types fluxes & uses 

https://www.youtube.com/watch?v=0v2SNH_ho08

62

15 Week

Gas welding defects, causes and remedies

https://www.youtube.com/watch?v=yjBhZ3rXpRg

63

16 Week

Electrode types, functions of flux, coating factor, sizes of electrode

https://www.youtube.com/watch?v=3Y60QBc5jeg

64

16 Week

 Coding of electrode as per BIS, AWS

https://www.youtube.com/watch?v=ZDWyvLxMv4g

65

16 Week

Effects of moisture pick up. - Storage and baking of electrodes

https://www.youtube.com/watch?v=B2w_CcHSZJo

66

16 Week

Special purpose electrodes and their applications.

https://www.youtube.com/watch?v=B7WOw-sC9yo

67

17 Week

Weldability of metals 

https://www.youtube.com/watch?v=SYx9_K6Bwu8

68

17 Week

importance of pre heating, post heating and maintenance of inter pass temperature.

https://www.youtube.com/watch?v=Cs7NJlo5_ss

69

18 Week

Classification of steel. - Welding of low, medium and high carbon steel and alloy steels.

https://www.youtube.com/watch?v=5LqDVx8P1Oc

70

18 Week

Classification of steel. - Welding of low, medium and high carbon steel and alloy steels.

https://www.youtube.com/watch?v=pezRZmIb9ig

71

19 Week

Effects of alloying elements on steel - Stainless steel : types- weld decay and weldability

https://www.youtube.com/watch?v=9Gqmxsdlhgs

72

20 Week

Brass – types – properties and welding methods. 

https://www.youtube.com/watch?v=HhegaIQ-gjE

73

20 Week

 Copper – types – properties and welding methods.

https://www.youtube.com/watch?v=xzaV7MD3cy4

74

21 Week

Aluminium and its alloys, properties and weldability, Welding methods - 

https://www.youtube.com/watch?v=43ap0j7j2mo

75

21 Week

Arc cutting & gouging,

https://www.youtube.com/watch?v=E3TMcX4Clvk

76

22 Week

Cast iron and its properties types. 

https://www.youtube.com/watch?v=9sYgX5XBZG4

77

22 Week

 Welding methods of cast iron.

https://www.youtube.com/watch?v=KK-ij6R0Yxg

78

27 Week

Inspection and Types of Inspection – Learn how to plan inspection

https://www.youtube.com/watch?v=kU1WzX6dSjg&feature=youtu.be

79

27 Week

Destructive and Non destructive Testing

https://www.youtube.com/watch?v=jAM7Tg7Dq1c&feature=youtu.be

80

27 Week

Non Destructive Testing [NDT] • Types Of Non Destructive Test 

https://www.youtube.com/watch?v=8T63o4Rm4Ms&feature=youtu.be

81

27 Week

Difference between Destructive Testing (DT) and Non Destructive testing (NDT)

https://www.youtube.com/watch?v=F_6FpNHklG4&feature=youtu.be

82

27 Week

Dye Penetrant Test (DPT, LPI, LPT, PT) Theory & Practical

https://www.youtube.com/watch?v=TpzTIu62z2k&feature=youtu.be

83

27 Week

Magnetic Particle Testing (Non Destructive Testing)

https://www.youtube.com/watch?v=sfjK1GZ2W9A&feature=youtu.be

84

28 Week

Welding Safety

https://www.youtube.com/watch?v=rsBXTRJJvVA&t=274s

85

28 Week

Introduction of GMAW(Mig/Mag) welding, various other names of the process

https://youtu.be/UQc3-KDByjg

86

28 Week

Metal Inert Gas Welding (MIG)

https://www.youtube.com/watch?v=v0SNF8VKAzI&list=PLSWRPBzGkib8hKN-HUiyg4T4GXu-xqAeG&index=9

87

28 Week

Tungsten Inert Gas Welding (TIG) 

https://www.youtube.com/watch?v=GrmuX0pEFds&feature=youtu.be

88

28 Week

GMAW(Mig/Mag) Equipment and accessories 

https://youtu.be/sR8mLOMey7U

89

28 Week

GMAW(Mig/Mag) plant setting

https://youtu.be/Fij5XHP9FuA

90

28 Week

Tee joint in MAG welding

https://youtu.be/Vnfdl2cJU4k

91

29 Week

Difference Between Shielded Metal Arc Welding (SMAW) and Gas Metal Arc Welding (GMAW) 

https://www.youtube.com/watch?v=Y3LtOhDOMek

92

29 Week

Difference Between Shielded Metal Arc Welding (SMAW) and Gas Metal Arc Welding (GMAW) hindi

https://www.youtube.com/watch?v=dLKCH9xsBZM

93

29 Week

GMAW(Mig/Mag) welding process parameters 

https://youtu.be/GvUPN_kFgdE

94

29 Week

Types of Metal transfer GMAW (Mig/Mag) welding

https://youtu.be/6MFwFr1QKKk

95

29 Week

Corner joint in MAG welding

https://youtu.be/4FZtDAbQgaU

96

30 Week

MIG/TIG welding welding electrodes or filler wire specification

https://www.youtube.com/watch?v=PK7w6YTfZTQ

97

30 Week

Mig welding machine settings 

https://www.youtube.com/watch?v=E3DVil1w5CQ&feature=youtu.be

98

31 Week

Shielding Gases for GMAW(Mig/Mag) welding

https://youtu.be/4Jc8kR3LDbs

99

31 Week

Flux Cored Arc Welding

https://www.youtube.com/watch?v=c7V218QVtpk

100

31 Week

FCAW - Flux Cored Arc Welding

https://www.youtube.com/watch?v=WEbgd7FH_nU&feature=youtu.be

101

31 Week

Flux Cored Arc Welding

https://www.youtube.com/watch?v=HuJ3GdO6E48&feature=youtu.be

102

32 Week

Edge preparation and weld joints

https://www.youtube.com/watch?v=8gHVbSYFky0

103

32 Week

Weld Joint Preparations | What is root gap,root face and groove angle|

https://www.youtube.com/watch?v=395iFC3ObFw

104

32 Week

Nomencalture of Weld

https://www.youtube.com/watch?v=NI5uwOdiWWM

105

32 Week

MIG Welding ,advantages,limitations,Its defects and Causes

https://www.youtube.com/watch?v=YUWhHl2Gnn8

106

32 Week

Weld Defects | Causes & Remedies in Hindi (हिन्दी)| welding defect

https://www.youtube.com/watch?v=yjBhZ3rXpRg

107

32 Week

Welding Defects

https://www.youtube.com/watch?v=yTTDQjq6JKk

108

33 Week

Heat input ,calculate Heat Input during welding

https://www.youtube.com/watch?v=trTQfNZWSf4

109

33 Week

Heat Affected Zone (HAZ) in Welding

https://www.youtube.com/watch?v=a8k5hfyV4QY&feature=youtu.be

110

34 Week

Preheating, Post Weld Heating, and Peening

https://www.youtube.com/watch?v=Cs7NJlo5_ss

111

34 Week

Post Weld Heat Treatment

https://www.youtube.com/watch?v=n-2uvwFcEfI

112

34 Week

Preheating

https://www.youtube.com/watch?v=mvZ_X_z8e8s

113

34 Week

Post Weld Heat Treatment

https://www.youtube.com/watch?v=usI-vSY9eRE

114

34 Week

Temperature Sticks / Temperature indicating Crayons

https://www.youtube.com/watch?v=VnWOjK_QwIo

115

34 Week

Welding preheat measurement - How to use Thermo crayons

https://www.youtube.com/watch?v=97re6ruhhME

116

35 Week

Submerged Arc Welding

https://www.youtube.com/watch?v=BTZ3Rw_0-qk

117

35 Week

Submerged Arc Welding, equipment, advantages & limitations

https://www.youtube.com/watch?v=kqBD1VULic4

118

35 Week

Submerged Arc Welding Process (Definition,Principle,working, advantages, limitations)

https://www.youtube.com/watch?v=URNP-xGeidI

119

36 Week

Electroslag Welding

https://www.youtube.com/watch?v=TejhCnW_euQ

120

36 Week

Electroslag welding, advantages, limitations, applications

https://www.youtube.com/watch?v=99-WOMfgm1M

121

36 Week

Electrogas Welding

https://www.youtube.com/watch?v=ztIk3z_BUoo

122

36 Week

Electro gas welding, advantages, applications

https://www.youtube.com/watch?v=s3axbexFdKM

123

37 Week

Thermit Welding

https://www.youtube.com/watch?v=e8P_5Z46rQg

124

37 Week

Thermit Welding (Understand Easily With Animation)

https://www.youtube.com/watch?v=4Nauireo3PY

125

37 Week

Thermit Welding Process ( Definition, Working, Equipment, Advantage & Disadvantage)

https://www.youtube.com/watch?v=-iGhMLTWIA4

126

37 Week

Thermit Weld Animation, how to join Railway tracks 

https://www.youtube.com/watch?v=SpUhrWSIfGg

127

38 Week

GTAW process brief description. Various other names of the process (TIG, Argonarc) 

https://www.youtube.com/watch?v=2Xt-N3SPvmg

128

38 Week

Power sources for GTAW - AC &DC

https://www.youtube.com/watch?v=X5UWdmC6rwY

129

38 Week

ifference between AC and DC welding, equipments, polarities and applications.

https://www.youtube.com/watch?v=iiNSt_MNE98

130

39 Week

Tungsten electrodes –types & uses, sizes and preparation 

https://www.youtube.com/watch?v=G_wY0_fzSqE

131

39 Week

GTAW Torches- types, parts and their functions

https://www.youtube.com/watch?v=5-sAzAGq8Cs

132

39 Week

 GTAW filler rods and selection criteria

https://www.youtube.com/watch?v=J1Wy8eOzwcQ

133

40 Week

Edge preparation and fit up. - GTAW parameters for welding of different thickness of metals

https://www.youtube.com/watch?v=395iFC3ObFw

134

40 Week

Pulsed TIG welding

https://www.youtube.com/watch?v=4k5HIh1G9Yk

135

40 Week

 pulse parameters slope up and slope down

https://www.youtube.com/watch?v=DwLC7OasbOA

136

41 Week

Argon / Helium gas properties – uses

https://www.youtube.com/watch?v=rK_m7sSn-yo

137

41 Week

Argon gas properties – uses

https://www.youtube.com/watch?v=kqTdeoPOAdM

138

41 Week

 GTAW Defects, causes and remedy

https://www.youtube.com/watch?v=LBXSVCmuBeY

139

42 Week

Friction welding process, equipment and application 

https://www.youtube.com/watch?v=fKJ8-VdSHHg

140

42 Week

 Laser beam welding (LBW)

https://www.youtube.com/watch?v=u53YCsroOC4

141

42 Week

 Electron beam welding(EBW)

https://www.youtube.com/watch?v=VQGk6LlQQPc

142

43 Week

Plasma Arc Welding (PAW) and cutting (PAC) process – equipments and principles of operation.

https://www.youtube.com/watch?v=GO-eM1beDso

143

43 Week

Types of Plasma arc, advantages and applications.

https://www.youtube.com/watch?v=lPliI84qvpg

144

44 Week

Resistance welding process - types, principles, power sources and welding parameters. - Applications and limitations.

https://www.youtube.com/watch?v=ToIT-WFBm_w

145

44 Week

types, principles, power sources and welding parameters. - Applications and limitations.

https://www.youtube.com/watch?v=EQuIZi7exuE

146

45 Week

Metalizing – types of metalizing principles, equipment, advantages, and applications 

https://www.youtube.com/watch?v=cu0AUcZswkI

147

45 Week

Manual Oxy – acetylene powder coating process- principles of operation and applications

https://www.youtube.com/watch?v=iUeUZPkEFTg

148

46 Week

Welding codes and standards 

https://www.youtube.com/watch?v=87T4amq4JPs

149

46 Week

Reading of assembly drawing

https://www.youtube.com/watch?v=WXDbu7vm4_4

150

46 Week

Welding Procedure Specification (WPS)

https://www.youtube.com/watch?v=tRGeQdhx1Fc

151

46 Week

 Procedure Qualification Record ( PQR)

https://www.youtube.com/watch?v=UNCvH4jNr7k

152

47 Week

Hard facing/ surfacing necessity, surface preparation, various hard facing alloys and advantages of hard facing

https://www.youtube.com/watch?v=9R_pzbIGfJI

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