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:
Jul. 02, 2013
Filed:
Aug. 31, 2007
Herbert Schmid, Vorchdorf, AT;
Karl Dickinger, Vorchdorf, AT;
Wolfgang Siessl, Traunkirchen, AT;
Miba Sinter Austria GmbH, , AT;
Abstract
The invention describes a method of compacting the surface of a sintered part (), whereby a sintered part () is moved in a die () along an axis () in a pressing direction () through several die portions () from a first die portion () at a first die orifice () into a last die portion (), and a wall surface () of each die portion () forms at least one pressing surface () against which a contact surface () formed by an external surface () of the sintered part () is pressed, and an internal contour () defined by the pressing surface () lying in a cross-section by reference to the axis () at least approximately corresponds to an external contour () defined by the contact surface (). As the sintered part () is moved, the surface is compacted from the first die orifice () to the last die portion () by die portions () continuously merging into one another and by monotonously decreasing internal diameters () of the die portions () as measured between co-operating pressing surfaces ().