EP 1850989 A4 20110629 - METHOD OF FORMING POWDER METAL COMPONENTS HAVING SURFACE DENSIFICATION

Title (en)

METHOD OF FORMING POWDER METAL COMPONENTS HAVING SURFACE DENSIFICATION

Title (de)

VERFAHREN ZUR HERSTELLUNG VON PULVERMETALLKOMPONENTEN MIT OBERFLÄCHENVERDICHTUNG

Title (fr)

MÉTHODE D'ÉLABORATION DE COMPOSANTS MÉTALLIQUES EN POUDRE PRÉSENTANT UNE SURFACE DENSIFIÉE

Publication

EP 1850989 A4 20110629 (EN)

Application

EP 05823969 A 20051223

Priority

CA 2005001970 W 20051223
US 64113605 P 20050105

Abstract (en)

[origin: WO2006072162A1] A method for producing a powder metal article having a three dimensional shape and having at least one densified surface comprising: a) providing a blend of powdered metals; b) compacting said blend to form a pre-form having a general shape of said article; c) sintering said pre-form; d) densifying at least one cylindrical surface region of said pre-form; and, e) forming said pre-form to a final density and into the three dimensional shape of said article.

IPC 8 full level

B22F 3/12 (2006.01); B22F 3/03 (2006.01); B22F 3/16 (2006.01); B22F 3/18 (2006.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); B22F 5/08 (2006.01); C22C 1/04 (2006.01)

CPC (source: EP US)

B22F 3/168 (2013.01 - EP US); C22C 1/11 (2023.01 - EP US); C22C 33/0207 (2013.01 - EP US); B22F 2003/166 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); B22F 2998/10 (2013.01 - EP US)

C-Set (source: EP US)

B22F 2998/00 + B22F 3/03 + B22F 5/08
B22F 2998/10 + B22F 1/09 + B22F 1/10 + B22F 3/02 + B22F 3/1017 + B22F 3/1028 + B22F 3/16 + B22F 3/18 + B22F 3/24

Citation (search report)

[XYI] EP 0826448 A1 19980304 - BORG WARNER AUTOMOTIVE [US]
[XI] US 6592809 B1 20030715 - ANDERSON GARY L [US], et al
[A] US 5997805 A 19991207 - LAWCOCK ROGER [CA], et al
[XI] US 2004177719 A1 20040916 - KOSCO JOHN C [US], et al
[Y] US 5540883 A 19960730 - JONES PETER [CA], et al
See references of WO 2006072162A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006072162 A1 20060713; CA 2594364 A1 20060713; EP 1850989 A1 20071107; EP 1850989 A4 20110629; JP 2008527166 A 20080724; MX 2007008208 A 20071107; US 2009129964 A1 20090521

DOCDB simple family (application)

CA 2005001970 W 20051223; CA 2594364 A 20051223; EP 05823969 A 20051223; JP 2007549770 A 20051223; MX 2007008208 A 20051223; US 81340005 A 20051223