MUMBAI, India, July 30 -- Intellectual Property India has published a patent application (202641087901 A) filed by Dr. Korem Ratna Kumari; Dr. Dharavath Dev Singh; Dr. A. Raji Reddy; and Dr. Suresh Arjula on July 17, 2026, for Method For Fabricating Functionally Graded Stainless Steel 316l–inconel 625 Structures Using Directed Metal Deposition.
Inventors include Dr. Korem Ratna Kumari; Dr. Dharavath Dev Singh; Dr. A. Raji Reddy; and Dr. Suresh Arjula.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: The present disclosure relates to a method for manufacturing a functionally graded metallic component using a directed metal deposition system (100). The method comprises depositing a first metallic material to form a first metallic region (202), depositing a second metallic material to form a second metallic region (206), and depositing a plurality of intermediate compositionally graded transition layers (204) between the first metallic region (202) and the second metallic region (206). A controller (108) regulates operation of a laser source (102) and a powder delivery assembly (104) to progressively vary material composition across the transition layers (204), thereby establishing a gradual compositional transition that facilitates metallurgical bonding while reducing brittle phase formation and interface-related defects. In one embodiment, the first metallic material comprises stainless steel 316L and the second metallic material comprises Inconel 625. FIG. 2
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