Grinding apparatus for buttons on rock drill bit
作者： Bo Thomas Sjolander , Robert Sjolander , Bjorn Sjolander
DOI:
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摘要: The present invention relates to grinding apparatus for the hard metal inserts of rock drill bits, said having a machine carried on an support system that provides feed pressure during grinding, equipped with pin driven by motor rotate about its longitudinal axis wherein cup is rotated at variable speeds and pressure.
lens.org 参考文章(9)
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