Fundamentals of welding science and technology

Participants join Fundamentals of Welding Science and Technology to build a strong conceptual and practical foundation in welding principles that are essential across manufacturing, fabrication, and structural industries. The course helps learners understand how welding parameters influence heat flow, microstructure, mechanical properties, and overall joint integrity, enabling more informed decision-making in design and production.

This course is particularly valuable for engineering students, early-career professionals, and researchers who want to strengthen their knowledge of welding metallurgy, process selection, and defect prevention. By developing a clear understanding of welding science and technology, participants enhance their technical competence, improve employability, and gain confidence in applying welding concepts to real-world engineering challenges.

Fundamentals of Welding Science and Technology is a foundational course that introduces the scientific principles and technological practices governing modern welding processes. The course explains the physics of heat generation and transfer, melting and solidification behavior, and metallurgical transformations that occur during welding. Emphasis is placed on understanding weld pool dynamics, microstructural evolution, and the relationship between welding parameters and joint performance.

Participants gain exposure to major welding processes such as arc welding, resistance welding, and solid-state welding, along with the role of consumables, shielding methods, and power sources. The course also covers weld defects, residual stresses, distortion, and basic weld quality control techniques. By integrating materials science with process technology, this course builds a strong conceptual base for selecting, designing, and optimizing welding procedures in industrial and research applications.

source: NPTELIIT Guwahati

• introduction of welding

• classification of welding and joints

• welding power sources

• physics of welding

• oxy-fuel gas welding

• submerged arc welding

• welding defects and inspection