Patents Represented by Attorney, Agent or Law Firm Burns, Boane, Swecker & Mathis, L.L.P.
  • Coated grooving or parting insert and method of making same
    Patent number: 6342291
    Abstract: The present invention relates to a coated cutting tool (e.g.—cemented carbide insert) useful for grooving or parting of steel or stainless steel components such as tubes and bars. The insert is characterised by a WC-Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a hard and wear resistant coating including a multilayered structure of sublayers of the composition (TixAl1−x)N with a periodic and repeated variation of the Ti/Al ratio.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 29, 2002
    Assignee: Sandvik AB
    Inventors: Anders Jonsson, Anders Piirhonen, Torbjörn Selinder, Gregor Kullander
  • Monocrystalline nickel-base superalloy with Ti, Ta, and Hf carbides
    Patent number: 5759301
    Abstract: A nickel-base superalloy, in particular for the fabrication of large monocrystalline components, essentially comprises (measured in wt %): 6.0-6.8% of Cr, 8.0-10.0% of Co, 0.5-0.7% of Mo, 6.2-6.6% of W, 2.7-3.2% of Re, 5.4-5.8% of Al, 0.6-1.2% of Ti, 6.3-7.0% of Ta, 0.15-0.3% of Hf, 0.02-0.04% of C, 40-100 ppm of B. 15-50 ppm of Mg, the remainder being nickel with impurities. Carbides of Ta, Ti, and Hf, and Mg, and/or Mg--O--S compounds are concentrated along small angle grain boundaries of the superalloy.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: June 2, 1998
    Assignee: ABB Research Ltd.
    Inventors: Maxim Konter, Michael Newnham, Christoph Tonnes