MUMBAI, India, Aug. 1 -- Intellectual Property India has published a patent application (202517065513 A) filed by Nippon Steel Corporation, Tokyo, on July 9, for 'laser welded joint and method for producing laser welded joint.'
Inventor(s) include Ashida Hajime; and Fujimoto Hiroki.
The application for the patent was published on Aug. 1, under issue no. 31/2025.
According to the abstract released by the Intellectual Property India: "Provided is a laser welded joint (1) and a method for producing the same, the laser welded joint (1) comprising a plurality of steel sheets (11) and (12) and a weld metal (20) for joining the plurality of steel sheets (11) and (12), characterized in that: at least one of the plurality of steel sheets (11) and (12) is a high-strength steel sheet having a Vickers hardness of 320 HV or higher; the plurality of steel sheets (11) and (12) have a content of Al penetrated into the base metal that is higher than 0.10 mass% but not higher than 2.10 mass%; the weld metal (20) has an average Al content of 0.30-2.00 mass%; when the average Al content, average Si content, and average Mn content of the weld metal (20) are expressed by [Al], [Si], and [Mn], respectively, relationship 1 ([Al]/([Al]+[Si]+[Mn])=0.150) is satisfied; and Al-containing slag covers 30.0% or more of the surface of the weld metal (20)."
The patent application was internationally filed on Jan. 19, 2024, under International application No.PCT/JP2024/001462.
Disclaimer: Curated by HT Syndication.
