Porous metal structure body and method for manufacturing the same
US7153337B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jan 24, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12097
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The object of the invention is to provide a porous metal structure body suitable for reinforcing a light metal alloy member such as an aluminum alloy member. A mixed powder containing a metallic powder is filled in a mold, and is molded into a shape having a single cavity or plural cavities in the inner portion while having a maximum thickness of 6 mm or less at the surface portion side. The molded powder body is sintered to form into the porous metal structure body having a porosity of 20 to 50% by volume at the portions except the cavities. It is preferable that the metallic powder sintered body having a porosity of exceeding 50% by volume is formed into the cavities by being monolithically integrated with the porous metal structure body. Consequently, a structure being lightweight, having a high mechanical strength and being excellent in handling performance while being excellent in impregnability can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.