Title:
LIGHT-WEIGHT METALLIC STRUCTURE AND RESPECTIVE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/144881
Kind Code:
A3
Abstract:
The present invention discloses a structure and respective method for production of a light-weight metal component comprising a cellular internal structure and a dense outer wall around the inner core, which delimits the latter. Both structures are developed in accordance with the forces/stresses to which the component is subjected locally and the component is obtained by casting, as a single article. The method for producing the structure comprises prototyping from a 3D design; plaster mould casting by a lost-wax casting process under vacuum, with the use of overpressure to an atmospheric pressure of 0.5 MPa and vibration, or centrifugal casting under vacuum and with vibration and, lastly, removal of the excess material. These components may be used for various purposes and in building or machine elements.
Inventors:
CORREIA PEREIRA DA SILVA FILIPE SAMUEL (PT)
Application Number:
PCT/IB2013/052459
Publication Date:
December 12, 2013
Filing Date:
March 27, 2013
Export Citation:
Assignee:
UNIV DO MINHO (PT)
International Classes:
B22D13/00; B22D18/00; B22D18/04; B22D18/06; B22D25/00
Domestic Patent References:
| WO2010027277A1 | 2010-03-11 |
Foreign References:
| EP1844881A2 | 2007-10-17 |
Attorney, Agent or Firm:
VIEIRA PEREIRA FERREIRA, Maria Silvina (Modet & Co.Rua Castilh, 50-9ยบ -163 Lisboa, PT)
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