Aktu Syllabus Advance Welding (KME-055) Btech

Explore cutting-edge welding methods, supplies, and equipment by studying the AKTU B.Tech syllabus for Advance Welding. Bring creativity to bear on metal joining for a variety of industrial applications.

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UNIT-1: WELDING ARC & POWER SOURCE

• Introduction: Introduction to welding, application,
• Classification and process selection criterion.
• Health & safety in welding.
• Welding Arc: Physics of welding arc, arc initiation, voltage distribution, arc characteristics, arc efficiency, arc temperatures and arc blow.
• Mechanism and types of metal transfer.
• Welding Power Sources: Types of welding power sources,
• Operation characteristics and specifications. 

UNIT-2: WELDING PROCESSES

• Welding Processes: Shielded Metal Arc Welding (SMAW),
• Gas Metal Arc Welding (GMAW) Gas Tungsten Arc Welding (GTAW) Plasma Arc,
• Submerged Arc Welding, Electro gas and Electroslag,
• Resistance welding,
• Friction welding, Brazing, Soldering & Braze welding. Laser beam welding,
• Electron beam welding,
• Ultrasonic welding, Explosive welding,
• Friction Stir Welding, Underwater welding.
• Advances in Welding Processes: Narrow Gap, Tandem (Twin /Multi Wire) Welding,
• A-TIG, Hybrid Welding processes,
• Magnetically impelled arc butt (MIAB) welding, welding automation and robotic applications. 

UNIT-3: HEAT FLOW WELDING

• Heat Flow Welding: Weld thermal cycle,
• Temperature distribution,
• Peak temperature;
• Heat Affected Zone (HAZ), heating, cooling and solidification rates.
• Welding Metallurgy: Fundamentals of physical metallurgy,
• Principle of solidification of weld metal,
• Reactions in weld pool – Gas metal reaction,
• Slag metal reaction,
• Factors affecting changes in microstructure and mechanical properties of HAZ,
• Micro and macro structures in weld metal and HAZ. 

UNIT-4: REPAIR & MAINTENANCE WELDING

• Repair & Maintenance Welding: Hardfacing, Cladding, Surfacing, Metallizing processes and Reclamation welding.
• Weldability: Effects of alloying elements on weldability, carbon equivalent, welding of plain carbon steel, Stainless steel, Cast Iron and Aluminium alloys,
• Welding of Dissimilar Materials. 

UNIT-5: WELD DESIGN & WELDING CODES

• Weld Design: Types of welds & joints,
• Welding Symbols,
• Weld defects and Remedies,
• Residual Stresses & Distortion,
• Inspection and testing of welds: Introduction to Non Destructive Techniques;
• Destructive Techniques – Bulk and Microhardness test,
• Wear test and types, corrosion test, tensile test, bend test, SEM, EDS and XRD.
• Welding Codes, WPS & PQR: Introduction to welding codes, ISO, ASME and BIS specifications,
• Welding Procedure Specification (WPS) & Procedure Qualification Record (PQR),
• Welding of pipe lines and pressure vessels. 

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