EP 3727733 A1 20201028 - METHOD FOR PRODUCING A CUTTING SECTION FOR A DRILL BIT
Title (en)
METHOD FOR PRODUCING A CUTTING SECTION FOR A DRILL BIT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES SCHNEIDABSCHNITTES FÜR EINE BOHRKRONE
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE SECTION DE DÉCOUPAGE POUR UNE COURONNE DE CAROTTAGE
Publication
Application
Priority
- EP 17209448 A 20171221
- EP 2018085141 W 20181217
Abstract (en)
[origin: WO2019121474A1] The invention relates to a method for producing a cutting section made of a first closed tubular element (14) which is formed in the shape of a first hollow cylinder, a second closed tubular element (15) which is formed in the shape of a second hollow cylinder, and one or more drill segments (16) which are connected to the first closed tubular element (14) and the second closed tubular element (15).
IPC 8 full level
B23B 51/04 (2006.01); B23D 65/00 (2006.01); B23P 15/28 (2006.01); B28D 1/04 (2006.01)
CPC (source: EP)
B23B 51/0461 (2022.01); B23B 51/0467 (2022.01); B23D 65/00 (2013.01); B23P 15/28 (2013.01); B28D 1/041 (2013.01)
Citation (search report)
See references of WO 2019121474A1
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)
EP 3501711 A1 20190626; EP 3727733 A1 20201028; WO 2019121474 A1 20190627
DOCDB simple family (application)
EP 17209448 A 20171221; EP 18815261 A 20181217; EP 2018085141 W 20181217