The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2024
Filed:
Jan. 12, 2023
Hyundai Steel Company, Incheon, KR;
Je Youl Kong, Incheon, KR;
Hyundai Steel Company, Incheon, KR;
Abstract
A method of manufacturing a hot-stamped part includes inserting a plurality of blanks into a heating furnace including a plurality of heating sections and a plurality of soaking sections. The blanks are heated in multiple stages and are soaked at a temperature of Ac3 to 1,000° C. During the step of heating the blanks, a temperature condition in the heating furnace satisfies formula 0<(Tg−Ti)/Lt<0.025° C./mm. The Tg denotes a soaking temperature (° C.), the Ti denotes an initial temperature (° C.) of the heating furnace, and the Lt denotes a length (mm) of step heating sections. The soaking is performed in the soaking sections having same temperature range in the heating furnace. The plurality of blanks includes a first blank and a second blank having different thicknesses and wherein the first blank and the second blank are simultaneously inserted into the heating furnace.