Invention Grant
- Patent Title: Method for marking workpieces, and workpiece
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Application No.: US16337860Application Date: 2017-09-21
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Publication No.: US11235368B2Publication Date: 2022-02-01
- Inventor: Christoph Zeh , Thomas Härtling
- Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Slater Matsil, LLP
- Priority: DE102016118842.5 20161005
- International Application: PCT/EP2017/073943 WO 20170921
- International Announcement: WO2018/065228 WO 20180412
- Main IPC: B21C51/00
- IPC: B21C51/00 ; B22D11/12 ; B05D7/14 ; B21D1/06 ; B21D1/02

Abstract:
A method for marking a wordpieces and workpiece are disclosed. In an embodiment the method includes applying an identification to a blank in places and after applying the identification to the blank, deforming the blank to form a metal body, wherein deforming the blank comprises rolling so that a thickness of the blank changes more strongly than a width of the blank when the metal body is formed, wherein the identification remains on the metal body at least until after deforming the blank and is not destroyed by deforming the blank, and wherein the identification, both to the blank and to the metal body, has at least one of a difference in reflection or a difference in remission and an albedo difference of at least 15 percentage points in at least part of at least one of a near ultraviolet spectral region, a visible spectral region or a near-infrared spectral region.
Public/Granted literature
- US20200030865A1 Method for Marking Workpieces, and Workpiece Public/Granted day:2020-01-30
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