EP 3997253 A1 20220518 - METHOD FOR PRODUCING A SHEET METAL PRODUCT AND SHEET METAL PRODUCT
Title (en)
METHOD FOR PRODUCING A SHEET METAL PRODUCT AND SHEET METAL PRODUCT
Title (de)
VERFAHREN ZUM HERSTELLEN EINES BLECHPRODUKTES UND BLECHPRODUKT
Title (fr)
PROCÉDÉ POUR FABRIQUER UN PRODUIT À BASE DE FEUILLE MÉTALLIQUE ET PRODUIT À BASE DE FEUILLE MÉTALLIQUE
Publication
Application
Priority
- DE 102019118578 A 20190709
- EP 2020068623 W 20200702
Abstract (en)
[origin: WO2021004872A1] The invention relates to a method for producing a sheet metal product (1) from a sheet metal blank (2), wherein: at least one surface (7) of the sheet metal blank (2) is coated with a coating; the sheet metal blank (2) is rolled; during rolling, depressions (6) are rolled into the surface (7); after coating and rolling, lubricant (8.1) is introduced into the depressions (6); after the lubricant (8.1) has been introduced, the sheet metal blank (2) is mechanically shaped with a shaping die (5), characterized in that the surface (7) is coated in such a manner that the coating is elastically deformable under loads of 0.5 MPa to 20 MPa and is plastically deformable under loads above 20 MPa in the shaping die (5) during the shaping process, particularly under relative movement between sheet and tool surfaces.
IPC 8 full level
C23C 2/26 (2006.01); B21B 1/22 (2006.01); C21D 8/02 (2006.01); C25D 5/48 (2006.01)
CPC (source: CN EP US)
B21B 1/222 (2013.01 - CN EP); C21D 8/0236 (2013.01 - CN EP); C21D 8/0278 (2013.01 - US); C21D 9/46 (2013.01 - US); C23C 2/06 (2013.01 - EP US); C23C 2/26 (2013.01 - CN EP US); C25D 3/22 (2013.01 - US); C25D 5/48 (2013.01 - CN EP US); C25D 7/0614 (2013.01 - CN EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019118578 A1 20210114; CN 114080468 A 20220222; CN 114080468 B 20240315; EP 3997253 A1 20220518; EP 3997253 B1 20230419; ES 2948492 T3 20230913; PL 3997253 T3 20230904; US 2023279574 A1 20230907; WO 2021004872 A1 20210114
DOCDB simple family (application)
DE 102019118578 A 20190709; CN 202080049952 A 20200702; EP 2020068623 W 20200702; EP 20737116 A 20200702; ES 20737116 T 20200702; PL 20737116 T 20200702; US 202017620213 A 20200702