Drill bit for a rock drilling tool with increased toughness and method for increasing the toughness of such drill bits

Details for Australian Patent Application No. 2009232420 (hide)

Owner Atlas Copco Secoroc AB

Inventors Stenberg, Goran; Rehnstrom, Mattias; Carlsson, Jimmy

Agent Watermark

Pub. Number AU-A-2009232420

PCT Pub. Number WO2009/123543

Priority 0800721-3 31.03.08 SE

Filing date 27 February 2009

Wipo publication date 8 October 2009

International Classifications

E21B 10/56 (2006.01) Drilling tools

B22F 3/24 (2006.01) Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering - After-treatment of workpieces or articles

C21D 7/04 (2006.01) Modifying the physical properties of iron or steel by deformation

Event Publications

7 October 2010 PCT application entered the National Phase

  PCT publication WO2009/123543 Priority application(s): WO2009/123543

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