Method of preparing cylindrical metal member, metallic ingot for impact pressing, and method of preparing electrophotographic photoreceptor
US10316397B2 · kind B2 · utility
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23References
14Claims
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Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/102
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of preparing a cylindrical metal member includes preparing a metallic ingot having at least one surface having a mean width with respect to roughness Sm in a range of from 100 μm to 220 μm; imparting a lubricant to the at least one surface of the metallic ingot; and subjecting the metallic ingot to impact pressing while the surface coated with the lubricant with respect to the metallic ingot is set as a bottom surface, to thereby mold a cylindrical metal member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.