| 摘要 |
A high-speed steel article, particularly a cutting tool, produced by powder metallurgy and its production, the steel having a high degree of purity corresponding to a K0 value of no higher than 3 according to DIN 50 602 and being of a particular composition which comprises the elements C, Si, Mn, Cr, W, Mo,V, Co, S and N. Also provided is a process for the high-speed machining of metal parts without lubricants.
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