Process for producing a filter, in particular for a rotary separator

US8292982B2 · kind B2 · utility

Assignee

• AVIO S.P.A. · IT

Inventors

• Paolo Gennaro · Novara, IT
• Maurizio Romeo · Novara, IT
• Giuseppe Bene · Torino, IT
• Franco Tortarolo · Torino, IT
• Giovanni Paolo Zanon · Rivalta di Torino, IT

Key dates

• Filing date: Dec 1, 2009
• Grant date: Oct 23, 2012
• Expiry date: Dec 30, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y80/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter, in particular for a rotary separator, is produced using an energy beam melting process, for example an electron beam, starting from powder made from the same material as a porous filtering portion to be formed, for example from a titanium alloy; on the basis of a three-dimensional model comprising a cell structure defining the porous filtering portion, subsequent layers of powder are applied and locally melted, so as to form successive sections of the porous filtering portion; at the end of the forming process, the residual powder is evacuated from the pores.