The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Jul. 30, 2003
Gebhard Zobl, Schattwald, AT;
Wolfgang Glatz, Reutte, AT;
Wolfgang Kraussler, Weissenbach, AT;
Robert Oberbreyer, Reutte, AT;
Gebhard Zobl, Schattwald, AT;
Wolfgang Glatz, Reutte, AT;
Wolfgang Kraussler, Weissenbach, AT;
Robert Oberbreyer, Reutte, AT;
Plansee SE, Reutte, AT;
Abstract
The invention relates to a process for producing a molding, comprising a disk-like or plate-like basic body -- having a large number of knob-like and/or web-like elevations --- which merge into the basic body -- with inclined side surfaces, by means of pressing and sintering powdery raw materials close to the final shape. According to the invention, the pressing is carried out in a two-stage pressing operation. In the first stage the boundary surfaces of the basic body -- are pressed to at least the approximate final shape as far as the transition regions of the elevations --- and, at the same time, the elevations --- are pressed to an oversize. The projection h' of the elevations --- from the basic body -- is greater by 10%-150% as compared with the projection h from the basic body -- in the finally pressed state. Their side surfaces form an angle of inclination α′ in the range from 90°-150° with the respectively adjacent boundary surface of the basic body --. In the second stage, the elevations --- are pressed to at least approximately the final shape, the angle of inclination α′ being enlarged to a value α which lies in the range from 95°-170°.