Method for manufacturing parts with a low waviness from an electrogalvanized metal sheet, corresponding part and vehicle
US11235364B2 · kind B2 · utility
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4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B15/01
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for manufacturing parts is provided. The method includes cold rolling a substrate with work cylinders whose work surface has a roughness Ra2.5 of less than or equal to 3.6 μm, depositing the metal coating on at least one face of the annealed substrate by electrodeposition to form the metal sheet and deforming the cut metal sheet to form the parts. The outer surface of the metal coating has a waviness Wa0.8 of less than or equal to 0.5 μm after the deformation step. A part and vehicle are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.