Abstract: [Problem] The present invention addresses the problem of ameliorating both low heating rate of a layered part and heating rate difference between the layered part and a single sheet part in cases where an Al plated steel sheet is used as a base material. [Solution] A layered blank for hot stamping according to the present invention is provided with: a first Al plated steel sheet which has a sheet thickness t1; and a second Al plated steel sheet which has a sheet thickness t2, and is superposed on and welded to the first Al plated steel sheet, while having a smaller area than the first Al plated steel sheet and having a carbon-based black coating film as an upper layer of an Al plating layer on a side that does not come into contact with the first Al plated steel sheet. This layered blank for hot stamping satisfies formula (1) to formula (5).
| # | Name | Date |
|---|---|---|
| 1 | 202417076198-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [08-10-2024(online)].pdf | 2024-10-08 |
| 2 | 202417076198-STATEMENT OF UNDERTAKING (FORM 3) [08-10-2024(online)].pdf | 2024-10-08 |
| 3 | 202417076198-PROOF OF RIGHT [08-10-2024(online)].pdf | 2024-10-08 |
| 4 | 202417076198-PRIORITY DOCUMENTS [08-10-2024(online)].pdf | 2024-10-08 |
| 5 | 202417076198-POWER OF AUTHORITY [08-10-2024(online)].pdf | 2024-10-08 |
| 6 | 202417076198-FORM 1 [08-10-2024(online)].pdf | 2024-10-08 |
| 7 | 202417076198-DRAWINGS [08-10-2024(online)].pdf | 2024-10-08 |
| 8 | 202417076198-DECLARATION OF INVENTORSHIP (FORM 5) [08-10-2024(online)].pdf | 2024-10-08 |
| 9 | 202417076198-COMPLETE SPECIFICATION [08-10-2024(online)].pdf | 2024-10-08 |
| 10 | 202417076198-FORM 18 [22-10-2024(online)].pdf | 2024-10-22 |
| 11 | 202417076198-FORM 3 [19-02-2025(online)].pdf | 2025-02-19 |