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ADVANCE WELDING TECHNOLOGY
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2181927
Code: 2181927
Credits: 5
Semester 8
Mechanical Engineering
Advance Welding Technology
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Follow on Instagram for UpdatesAdvance Welding Technology Syllabus — Unit-wise Content
The official GTU curriculum for Advance Welding Technology (subject code 2181927) as prescribed for Mechanical Engineering · Semester 8 divides the course into 7 units, covering 100 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (2181927)Unit 1 Introduction to welding and joining processes
- Introduction to consolidation processes
- Classification of welding processes
- some common concerns
- types of fusion welds and types of joints
- Design considerations
- Heat effects
- Weld ability and join ability
- Welding terms and definitions
- welding positions
- elements of and construction of welding symbols
Unit 2 Welding Metallurgy
- Fundamentals of physical metallurgy: Need
- phase diagrams Fe-C
- Cu-Zn system
- phase transformations in Fe-C system
- TTT diagram
- CCT diagram
- carbon equivalent
- Schaffer diagram
- relevance of above in welding. b
- Solidification of weld metal: Principle of solidification of weld metal
- modes of solidification
- effect of welding parameters on weld structure
- grain refinement principle of weld metal
- method of weld metal refinement
- arc pulsation
- external excitation. c
- Heat affected zone and weld metal: Transformations in HAZ of steel
- factors affecting changes in microstructure and mechanical properties of HAZ, reactions in weld pool- gas metal reaction
- slag metal reaction. d
- Metallurgical issue in weld joint: Mechanisms
- causes and remedy of cold cracking
- solidification cracking
- nonmetallic inclusions
- lamellar tearing
- hydrogen damage
Unit 3 Weld joint preparation and temperature control
- Checks prior to weld joint preparation
- joint preparation checks
- preheating and interpass heating
- post weld heating
- heating processes
- post heat treatments
- insulation of heated joints
Unit 4 Gas flame and Arc processes
- Welding power sources (features) Oxy-fuel gas welding- processes
- advantages, and limitations Consumable electrode Arc welding: Shielded Metal Arc Welding
- Flux cored Arc Welding
- Gas Metal Arc Welding
- Stud welding Non-consumable electrode welding processes: Gas tungsten arc welding
- gas tungsten arc spot welding
- plasma arc welding
Unit 5 Resistance and solid state welding processes
- Theory of resistance welding: Heating
- current and current control
- power supply
- Resistance welding processes: Resistance spot welding
- resistance seam welding
- Projection welding
- Advantages and limitations of resistance welding
- Solid state welding: Forge welding
- Forge-seam welding
- cold welding
- roll welding or roll bonding
- Friction welding and Inertia welding
- Friction-stir welding
- Ultrasonic welding
- Diffusion welding
- Explosive welding
Unit 6 Other welding processes, brazing and soldering
- Thermit welding
- Electro-slag welding
- Electron beam welding
- Laser beam welding
- Flash welding
Unit 7 Weldment Inspection and Testing
- Codes governing welding inspection: Structural welding code
- ASME boiler and pressure vessel code
- spot examination of welded joints
- duties of the inspector
- ASTM standards
- API standards b
- Metallurgical, and Mechanical testing of weldments: Comparison of destructive and non-destructive tests
- chemical tests
- forms of corrosion
- testing for corrosion resistance
- metallographic tests. c
- Visual and liquid penetrant inspection: Selection of NDT method
- relationship of welding processes
- discontinuities and inspection methods
- visual inspection prior to, during and after welding
- Liquid penetrant test. d
- Magnetic particle and Radiographic inspection: Magnetic particle inspection
- types of magnetizing currents
- interpretation of patterns
- non-relevant indications
- radiographic sources
- detectable discontinuities. e
- Ultrasonic inspection: Criteria for successful implementation
- test equipment and techniques
- Eddy current inspection
- acoustic emissions
- proof tests and leak tests: Eddy current inspection
- inspecting welded tubing and piping
- types of emissions
- inspection of pressure vessels
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