EP 3166745 A1 20170517 - FRICTION STIR EXTRUSION OF NONWELDABLE MATERIALS FOR DOWNHOLE TOOLS
Title (en)
FRICTION STIR EXTRUSION OF NONWELDABLE MATERIALS FOR DOWNHOLE TOOLS
Title (de)
RÜHRREIBEXTRUSION VON NICHT SCHWEISSBAREN MATERIALIEN FÜR BOHRLOCHWERKZEUGE
Title (fr)
EXTRUSION PAR FRICTION-MALAXAGE DE MATÉRIAUX NON SOUDABLES POUR OUTILS DE FOND DE TROU
Publication
Application
Priority
- US 201462023166 P 20140710
- US 201462084432 P 20141125
- US 2015039787 W 20150709
Abstract (en)
[origin: WO2016007773A1] A non-weldable workpiece may be affixed to a weldable workpiece by friction stirring the weldable workpiece to plasticize and extrude at least a portion thereof into a recess in the non-weldable workpiece. The weldable workpiece may then be welded to a body of a downhole tool to enable the welding of a non-weldable workpiece onto a body to increase the wear-resistance of the body.
IPC 8 full level
B23K 20/12 (2006.01); B23K 20/22 (2006.01); E21B 17/10 (2006.01); B23K 101/04 (2006.01)
CPC (source: EP)
B23K 20/122 (2013.01); B23K 20/127 (2013.01); B23K 20/22 (2013.01); B23K 20/227 (2013.01); B23K 20/233 (2013.01); E21B 17/10 (2013.01); E21B 17/1085 (2013.01); B23K 2101/04 (2018.07); B23K 2101/20 (2018.07); B23K 2103/04 (2018.07); B23K 2103/05 (2018.07); B23K 2103/10 (2018.07); B23K 2103/14 (2018.07); B23K 2103/18 (2018.07); B23K 2103/20 (2018.07); B23K 2103/26 (2018.07); B23K 2103/50 (2018.07); B23K 2103/52 (2018.07)
Citation (search report)
See references of WO 2016007773A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
US 2015039787 W 20150709; EP 15745030 A 20150709