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Cubic boron nitride sintered material cutting tool
A cBN sintered material cutting tool includes a cutting tool body that is made of a sintered material including cubic boron nitride particles and a binder phase, in which: an average particle size of the cBN particles is 0.5 μm or less and a content ratio of the cBN particles in the sintered material is 35 vol % to 80 vol %; and the binder phase includes 1.0 vol % to 20 vol % of an Al compound, an average particle size of the Al compound present in the binder phase is 300 nm or less, and a value of a ratio (a value of SN/SO; area ratio) of a content SN of nitrogen (N) included in the Al compound to a content SO of oxygen (O) included in the Al compound is 1.1 to 5.
Cubic boron nitride sintered material cutting tool
A cBN sintered material cutting tool includes a cutting tool body that is made of a sintered material including cubic boron nitride particles and a binder phase, in which: an average particle size of the cBN particles is 0.5 μm or less and a content ratio of the cBN particles in the sintered material is 35 vol % to 80 vol %; and the binder phase includes 1.0 vol % to 20 vol % of an Al compound, an average particle size of the Al compound present in the binder phase is 300 nm or less, and a value of a ratio (a value of SN/SO; area ratio) of a content SN of nitrogen (N) included in the Al compound to a content SO of oxygen (O) included in the Al compound is 1.1 to 5.
Cubic boron nitride sintered material cutting tool
YANO MASAHIRO (author) / OGUCHI SHIROU (author) / MIYASHITA YOSUKE (author)
2021-09-28
Patent
Electronic Resource
English
| European Patent Office | 2021
| European Patent Office | 2021
| European Patent Office | 2024
| European Patent Office | 2022