New Grades of Hardmetals for a Rock Cutting Tools

被引:0
|
作者
Anatolii F. Lisovsky
机构
[1] Institute for Superhard Materials,National Academy of Sciences of Ukraine
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关键词
hardmetal; rock cutting tool;
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学科分类号
摘要
A concept is developed for creating hardmetals for rock cutting tools. The concept pays particular attention to increasing energy absorption and the fatigue strength of hardmetals. In order to provide high rock cutting tool efficiency it should be fitted with hardmetal inserts which exhibit high bending strength, fracture toughness, total work of deformation, and energy absorption coefficient. This has been realized in the development of new grades of hardmetals for rock cutting tools. The efficiency of rock cutting tools fitted with inserts made from the new grades of hardmetal exceeds that of similar tools fitted with standard hardmetals inserts by a factor of 2.8
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页码:430 / 435
页数:5
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