Patent ID: 6309762
Filing Date: 2001-10-30
Classification: B23K,B32B,C23C,F16C,Y10S,Y10T

Abstract:
An article of manufacture having a wear-resistant cylindrical surface, said article of manufacture comprising:a base component with a substantially cylindrical surface, said base component being made of steel having a Charpy impact strength of over 30 foot pounds and a tensile strength of over 120,000 pounds per square inch;a cylindrical metal sleeve, defining inner and outer surfaces, mated to and affixed to the substantially cylindrical surface of the base component at one of its inner and outer surfaces, said sleeve being made of steel and having a Rockwell C hardness of less than 40 over at least 50% of its thickness and having less than 15% Martensite; anda composite metallic coating containing particles having a hardness of greater than Rockwell C 70 metallurgically bonded to the other of the inner and outer surfaces of the sleeve.