多結晶質立方晶窒化硼素の切削工具インサートの製造方法

Japanese Patent JP5456949

B2

The present invention relates to a method of making a PcBN cutting tool insert. The method includes the following steps: mixing raw material powders i.e. cBN and one or more of hBN(hexagonal boron nitride), TiC, TiN, Ti(C,N), WC, W, C, Co, Co2Al9, Al, AlN, Al2O3) with a liquid (e.g. ethanol) and a pressing agent (e.g. polyethylene glycol, PEG) to form a homogeneous slurry with desired composition forming powder agglomerates, typically 100 mu m in diameter, preferably by spray drying forming a body with desired dimensions and density using conventional tool pressing technology. removing the pressing agent from the body at a suitable temperature and atmosphere raising the temperature to 1000-1350 DEG C in vacuum. solid state sintering the body at 1000-1350 DEG C in vacuum for 1-90 minutes to form a body with 35-55 vol-% porosity optionally, adding 0.5-1000 mbar of nitrogen to the sintering atmosphere at the hold time or during cooling HP/HT treating the porous body to form a dense body of desired shape and dimension.

JP2006501068	Method for manufacturing sintered support polycrystalline diamond molded product
WO/1993/016831	PROCESS FOR PRODUCING SINTERED COMPONENTS
JPS57101602	MANUFACTURE OF STEEL FRAME MOUNTED WITH BLADES OF HARD MATERIAL

Wolf rolander
Gerold Bainle

JP2000110563A

April 02, 2014

April 06, 2000

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Sandvik Intellectual Property Actie Borag

B22F7/06; H01R13/658; B22F3/11; B22F7/00; B22F7/08; B23B27/14; B23P15/28; C22C1/05; C22C26/00; C22C29/14; H01R9/03; H01R13/58; H01R13/648; H05K9/00

JP7116962A
JP839434A
JP9117808A
JP2167667A
JP8119751A
JP2252661A
JP2296706A
JP6293567A
JP344450A
JP61141672A

Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu

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