Patents Examined by John J. Zimmarman
  • Weldable wear part with high wear resistance
    Patent number: 4576875
    Abstract: A wear part with high wear and abrasion resistance combined with unlimited weldability and good mechanical strength or toughness, comprising a composite part of hard metal portion, a cast metal alloy body portion and attached thereto to joining portion, characterized in that the joining portion consists essentially of a weldable steel which by casting is bonded to the cast metal alloy body portion to a combined mechanical-metallurgical bond is provided, as well as a method for forming such a wear part.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: March 18, 1986
    Assignee: Santrade Ltd.
    Inventors: Olle G. Olsson, Melih Yaman, Mats G. Waldenstrom, Udo K. R. Fischer