| 摘要 |
1,042,711. Cutting tools. WICKMAN WIMET Ltd. Jan. 21, 1965 [Feb. 10, 1964; Oct. 22, 1964], Nos. 5558/64 and 43225/64. Heading B3B. [Also in Division C7] A cutting tool 1 has a sintered hard metal tip 2 formed by a body portion 2 of tungsten carbide with or without carbide of one or more elements of the fourth or fifth groups of the Periodic Table, and cobalt or like binder, and a thin layer 3 of carbide and binder metal which is more resistant to wear than the body. Examples of different compositions of carbides are described. |
