EP 1982787 B1 20091230 - Segment belt for drill bit and drill bit
Title (en)
Segment belt for drill bit and drill bit
Title (de)
Segmentband für eine Bohrkrone und Bohrkrone
Title (fr)
Bande de segment pour une couronne de fleuret et couronne de fleuret
Publication
Application
Priority
DE 102007018791 A 20070420
Abstract (en)
[origin: EP1982787A1] A metal strip is laid into a sintering mold. Green cutter moldings made from sintering powder are placed on the upper surface of the strip in the sintering mold. Green cutter moldings are also placed underneath the strip in the mold. The moldings are then sintered, to form cutting segments. The sintering operation bonds the cutting segments and the strip. The sintering powder is a metal powder containing diamond particles. Independent claims are included for the following: (A) a segmented strip (20) for a core drill; (B) and the method of making a core drill.
IPC 8 full level
B23D 65/00 (2006.01); B28D 1/04 (2006.01)
CPC (source: EP)
B23D 65/00 (2013.01); B28D 1/041 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1982787 A1 20081022; EP 1982787 B1 20091230; AT E453480 T1 20100115; DE 102007018791 B3 20080814; DE 502008000277 D1 20100211
DOCDB simple family (application)
EP 08154483 A 20080414; AT 08154483 T 20080414; DE 102007018791 A 20070420; DE 502008000277 T 20080414