A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DRILLING TOOLS MADE OF WURTZITE BORON NITRIDE (W-BN)
Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder to synthesize w-BN and cubic boron nitride (c-BN) compact having a first size greater than particles of the pure w-BN powder. The ultra-high-pressure, high-temperature operation includes pressurizing the w-BN powder to a pressure of approximately 20 Gigapascal, heating the w-BN powder at a heating rate of 100° C./minute and cooling the w-BN powder at a cooling rate of 50° C./minute. The compact is cut to a second size smaller than the first size using laser cutting tools. The cut compact is bonded metallurgically, mechanically, or both metallurgically and mechanically onto a tool substrate to form the drilling tool.
DRILLING TOOLS MADE OF WURTZITE BORON NITRIDE (W-BN)
Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder to synthesize w-BN and cubic boron nitride (c-BN) compact having a first size greater than particles of the pure w-BN powder. The ultra-high-pressure, high-temperature operation includes pressurizing the w-BN powder to a pressure of approximately 20 Gigapascal, heating the w-BN powder at a heating rate of 100° C./minute and cooling the w-BN powder at a cooling rate of 50° C./minute. The compact is cut to a second size smaller than the first size using laser cutting tools. The cut compact is bonded metallurgically, mechanically, or both metallurgically and mechanically onto a tool substrate to form the drilling tool.
DRILLING TOOLS MADE OF WURTZITE BORON NITRIDE (W-BN)
BOHRWERKZEUGE AUS WURTZIT-BORNITRID (W-BN)
OUTILS DE FORAGE EN NITRURE DE BORE WURTZITE (W-BN)
ZHAN GUODONG (author) / MOELLENDICK TIMOTHY E (author) / LI BODONG (author) / HE DUANWEI (author)
2023-04-05
Patent
Electronic Resource
English
Bn) drilling tools made of wurtzite boron nitride (W-BN)
| European Patent Office | 2024