A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Drilling tip, drilling tool, and method of manufacturing drilling tip
A drilling tip according to the disclosure has a tip body which is provided with a tip portion tapered toward a tip side of the tip body; and a hard layer which is formed on a surface of the tip portion of the tip body, an outermost layer of the hard layer is a cBN sintered material having 70 to 95 vol % of cBN grains, and when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1 nm or greater and 30 nm or less and containing Al, B, and N, and in which a ratio of an O content to an Al content is 0.1 or less exists between neighboring cBN grains.
Drilling tip, drilling tool, and method of manufacturing drilling tip
A drilling tip according to the disclosure has a tip body which is provided with a tip portion tapered toward a tip side of the tip body; and a hard layer which is formed on a surface of the tip portion of the tip body, an outermost layer of the hard layer is a cBN sintered material having 70 to 95 vol % of cBN grains, and when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1 nm or greater and 30 nm or less and containing Al, B, and N, and in which a ratio of an O content to an Al content is 0.1 or less exists between neighboring cBN grains.
Drilling tip, drilling tool, and method of manufacturing drilling tip
AKHMADI EKO WARDOYO (author) / YANO MASAHIRO (author) / MATSUO TOSHIHIKO (author) / AKAHOSHI YUKI (author) / TAKEUCHI YUICHIRO (author)
2021-01-26
Patent
Electronic Resource
English
DRILLING TIP, DRILLING TOOL, AND METHOD OF MANUFACTURING DRILLING TIP
| European Patent Office | 2023
Drilling tip, drilling tool, and method of manufacturing drilling tip
| European Patent Office | 2021