MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202631069887 A) filed by Asansol Engineering College on June 04, 2026, for “selective Laser Sintering Of Micron-Scale Metallic Powder”.
Inventors include Dr. Srijan Paul; Dr. Sarnendu Paul; and Mr. Kaushal Kishore.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: Abstract A selective laser sintering apparatus and method are disclosed for processing ultra-fine micron-scale metallic powder materials to fabricate high-density metallic components with superior mechanical profiles and geometric precision. The system architecture comprises an isolated, hermetically sealed build chamber housing a powder delivery unit, a precision mechanical recoating assembly, a high-energy laser source integrated with a multi-axis galvanometric scanning system, a multi-zone closed-loop thermal management system, and an inert atmospheric regulation system. Metallic powder particles characterized by a fine particle diameter strictly constrained between 1 mu ext{m} and 50 mu ext{m} are uniformly distributed in ultra-thin layers and selectively sintered layer-by-layer according to digital slicing data. The multi-zone thermal management system and the computer-controlled scanning system operate in closed-loop synergy based on real-time thermal feedback to minimize spatial thermal gradients. The invention successfully eliminates structural porosity, prevents oxidation, suppresses residual stresses, and delivers high-density components exhibiting optimal surface finishes and refined microstructures.
Disclaimer: Curated by HT Syndication.
