MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202617057225 A) filed by Arcelormittal on May 05, 2026, for A Method For Manufacturing Press-Hardened A Steel Part Provided With An Al-Based Coating And Corresponding Steel Sheet.
Inventors include Rachiele, Lydia International Bureau; and Grigorieva, Raisa.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: A method to manufacture a press hardening part comprising the following steps: A) Providing a coated steel sheet (4), comprising a base steel for heat treatment (1), coated with an aluminium based metallic coating (2), B) Applying a surface treatment (3) on the coated steel sheet (4) with an aqueous solution to form a wet film having a thickness from 0.5 to 6.0 pm, said aqueous solution having a mass concentration in chromium from 1.0 to 30.0 g/L and a mass concentration in phosphorous from 0.8 to 26.0 g/L, C) Drying said wet film to obtain a treated coated steel sheet (5), D) Trimming or cutting said treated steel sheet (5) into a blank, E) Heating said blank in a furnace at a temperature set from 850 to 950°C, F) Transferring said hot blank into a press tool, G) Forming said hot blank into a part and press hardening said part into a press-hardened part.
Disclaimer: Curated by HT Syndication.
