Method and device for forming porous metal parts by sintering
US6674042B1 · kind B1 · utility
4Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Mar 1, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for forming metal components of controlled porosity by welding, in which a predetermined amount of metal elements (50) of oblong shape is introduced into a mold (10) in which it is distributed isotropically. The metal elements are then subjected to increasing pressure (P) until the component has its final shape. The walls of the mold are then held in position and an electric current (I) flows through the metal elements and welds them together by local melting at the points of contact due to the Joule effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.