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:
Mar. 28, 2023
Filed:
Mar. 05, 2021
Thyssenkrupp Rasselstein Gmbh, Andernach, DE;
thyssenkrupp Rasseistein GmbH, Andernach, DE;
Abstract
A packaging sheet metal product from a cold-rolled steel sheet with a thickness of less than 0.6 mm has a specified composition. The packaging sheet metal product during biaxial deformation in a bulge test has a lower yield strength (Sb) of more than 300 MPa and a corresponding elongation at break (Ab) of more than 10% and in the plastic region between the Lüders elongation (Ab) and an upper (plastic) elongation limit of ε=0.5·Ab·(Sb/Sb) has a biaxial stress/strain diagram σ(ε) that can be represented by a function ε=b·ε, with: σis the true biaxial stress in MPa; ε is the amount of true elongation in the thickness direction in %; Sbis the absolute strength; b is a proportionality factor; and n is a strain-hardening exponent. A strengthening of the packaging sheet product in the thickness direction is characterized by a strain-hardening exponent of n≥0.353-5.1·Sb/10MPa.