Hyundai Steel has been granted a patent for an innovative method of manufacturing an aluminum coated blank. The process involves bonding steel sheets with a filler wire using a laser beam, resulting in a joint portion with specific composition and properties suitable for hot stamping molding. GlobalData’s report on Hyundai Steel gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Hyundai Steel, Hydrogen fuel cells was a key innovation area identified from patents. Hyundai Steel's grant share as of May 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Method of manufacturing aluminum coated blank using laser bonding
A recently granted patent (Publication Number: US11975375B2) discloses a method for manufacturing an aluminum-coated blank using a unique bonding process. The method involves arranging edges of two coated steel sheets facing each other and bonding them by melting the sheets together using a filler wire and a laser beam. The joint portion formed contains specific amounts of aluminum, manganese, and carbon, ensuring the formation of a desired microstructure post-molding. The patent also details variations in the composition of the joint portion based on the difference in strengths and thicknesses of the coated steel sheets, with specific carbon and manganese content ranges for each scenario.
Furthermore, the patent outlines additional parameters such as the segregation fraction of aluminum, the pattern angle during joint formation, and the specifications of the laser beam used in the process. The method allows for precise control over the composition and structure of the joint portion, resulting in an aluminum-coated blank with superior hardness and microstructural properties suitable for applications like press molding and hot stamping molding. The patent also includes variations in the application of the laser beam, with options for power range and movement patterns to optimize the bonding process. Overall, the patented method offers a novel approach to manufacturing aluminum-coated blanks with tailored properties, expanding the possibilities for advanced metal forming techniques in various industries.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
