Within the hyped industry 4.0 concept and implementation, additive Manufacturing (AM) is a visionary approach to flexible-cell manufacturing for components for their difficult-to- make shapes, including intricate passageways. Like welding, AM relies on a layer-by-layer deposition of fused-metal feed-stock. AM and welding involve an energy source (e.g., Laser, Electron beam, Electric Arc, or Plasma), one or several feedstocks (e.g., powder, wire, sheets, and ribbon), and spatial displacement, as provided by a CNC stage or a multi-axis robot. From materials and metallurgical standpoints, welding and additive manufacturing, bring into play: (1) a multitude of complex and interacting physical phenomena such as heat and mass transfer, continuum mechanics, phase changes (including melting, solidification, allotropic transformations and diffusion phenomena such as epitaxial growth, grain growth and crystal orientation), (2) a number of process variables associated to the moving heat source (e.g., its power, power distribution, relative speed, size, all affecting energy density), its paths (e.g., linear, circular, oscillatory, etc), and added metal feed rate via powder, wire, or ribbon feed, all controlling deposit dimensions, aspect-ratio, and deposit properties, including internal defects. The effect of successive thermal cycles, as induced by the heat source moving away from an already deposited material, further adds to the overall challenge of developing industry-compliant components. The theory and practice of advanced welding and additive manufacturing will be the core of this course. Examples from industrial projects will be detailed.

The course is oriented to make researchers and engineers take a multidisciplinary approach to manufacturing with focus on processes, materials with particular emphasis on the gap between theory and practice. The roadmap to implement transfer from lab to industry will be highlighted by taking some case studies from manufacturing and service provider sectors. The end aim is to give some insights on technology survey and how pitfalls that stem from an ever increasing research papers can be avoided through rational approach based on risk analysis inherent to processes and materials. With this in view, welding and additive manufacturing will be discussed both from material science and industrial perspectives.


At the conclusion of this course, the participants are expected to:



The participants may be provided with hostel accommodation, depending on availability, on payment basis. Further details about accommodation will be communicated with the shortlisted individual participants via email.

Venue for classes

Classes will be held in the MSB 360, Mechanical Sciences Block (MSB), Department of Mechanical Engineering, IIT Madras.

About IIT Madras

The Indian Institute of Technology Madras, established by the Government of India in 1959, is among the foremost of Institutes in India and abroad in higher technical education with fundamental and applied research. It has been ranked the top engineering institute in India for the last three years (2016-2018) in a row with NIRF rank 1 by Ministry of Human Resources Development, India. The Institute is located in a lush green forest covered land of about 250 hectares in South Chennai. The presence of leading automobile manufacturing and allied industries proves to be conducive to its research atmosphere. It has about 565 faculties, 8300 students, and 700 administrative and supporting staffs working in various departments and centres.

About the Department & Laboratory

The Department of Mechanical Engineering is one of the largest in IIT Madras. It comprises of three major streams namely Manufacturing, Design and Thermal. It has excellent facilities for carrying out theoretical and experimental research.

The Manufacturing Engineering Section (MES) started its journey in 1965 under the Department of Mechanical Engineering. It is now equipped with state-of-the-art facilities for teaching, training, research and development, and industrial consultancy in various aspects of manufacturing. The facilities available in the section encompass conventional, unconventional and advanced manufacturing technologies. These are grouped under Machine Tool Laboratory, Computer Aided Design (CAD) Laboratory, Computer Aided Manufacturing (CAM) Laboratory, Robotics, CIM Laboratory, Micro Machining and Metrology Laboratory. Since its inception, emphasis has been on practical and industrially relevant developmental activities. The facilities in the section have been augmented with support from Ministry of HRD, Government of India, Indo-German Projects, and Sponsored Projects from various Governmental Agencies and Industries.