Purushottam Das Gupta

Title: Purushottam Das Gupta: Innovator in Laser Welding Technology

Introduction

Purushottam Das Gupta is a distinguished inventor based in Indore, India. He has made significant contributions to the field of laser welding technology, holding 2 patents that enhance the quality and efficiency of welding processes. His work is particularly relevant in industries that require high precision and reliability in welds.

Latest Patents

Das Gupta's latest patents include a novel laser welding method designed for enhanced weld quality and surface smoothness. This improved method utilizes long pulse and high energy pulses of solid-state lasers, allowing for deep penetration with minimal surface evaporation during the first pass. The second pass employs a lower power density laser beam, achieving an average surface smoothness of 5 mm.

Another significant patent involves niobium-based superconducting radio frequency (SCRF) cavities. This invention details a method and apparatus for manufacturing SCRF cavities with niobium components that are joined by laser welding. The process ensures more than half the thickness to full depth penetration with minimal heat-affected zone (HAZ), thereby reducing distortion and shrinkage. The welding nozzle system and rigs developed for this purpose facilitate efficient laser welding, enhancing productivity and ensuring consistent quality.

Career Highlights

Purushottam Das Gupta serves as the Secretary in the Department of Atomic Energy. His role in this prestigious organization underscores his expertise and commitment to advancing technology in critical fields.

Collaborations

Das Gupta has collaborated with notable colleagues such as Prashant Khare and Brahma Nand Upadhyay. Their combined efforts contribute to the innovative advancements in laser welding technology.

Conclusion

Purushottam Das Gupta's contributions to laser welding technology exemplify his dedication to innovation and quality. His patents not only enhance welding processes but also ensure reliability and efficiency in critical applications. His work continues to influence the field positively.