JPS55161046A - High density phase boron nitride-containing sintered body and its manufacture - Google Patents

High density phase boron nitride-containing sintered body and its manufacture

Info

Publication number
JPS55161046A
JPS55161046A JP7020679A JP7020679A JPS55161046A JP S55161046 A JPS55161046 A JP S55161046A JP 7020679 A JP7020679 A JP 7020679A JP 7020679 A JP7020679 A JP 7020679A JP S55161046 A JPS55161046 A JP S55161046A
Authority
JP
Japan
Prior art keywords
high density
density phase
metal
boron nitride
wurtzite type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7020679A
Other languages
Japanese (ja)
Other versions
JPS5832225B2 (en
Inventor
Masato Araki
Akira Sawaoka
Shinroku Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NOF Corp
Original Assignee
Nippon Oil and Fats Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Oil and Fats Co Ltd filed Critical Nippon Oil and Fats Co Ltd
Priority to JP54070206A priority Critical patent/JPS5832225B2/en
Publication of JPS55161046A publication Critical patent/JPS55161046A/en
Publication of JPS5832225B2 publication Critical patent/JPS5832225B2/en
Expired legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To manufacture a high density phase boron nitride-contg. sintered cutting tool with superior cutting performance by adding high density phase boron nitride to cermet forming starting materials followed by sintering.
CONSTITUTION: Ceramic substance consisting of nitrides, oxides, borides and carbides of various metals 40W95vol%, metal powder of Ni, Co, Cr, Mo, W, V or the like 0.5W25vol% and wurtzite type BN powder 1W40vol% are mixed with a ball mill made of sintered hard alloy. At this time, the total amount of the metal and the BN is adjusted to 5vol% or more. The mixture is then filled in Mo capsule 8, where it is sintered under a pressure of 3W7 GPa at a temp. of 1,000W2,300°C by being pressurized and electrified with upper and lower anvils 1 of a high pressure high temp. apparatus. The wurtzite type BN undergoes no change, or 90% or less of it is converted into cubic system BN, and the metal and the wurtzite type BN or the metal, the wurtzite type BN and the cubic system BN form a network structure and surround the ceramic substance to give a high density phase BN-contg. sintered cutting tool with superior cutting performance.
COPYRIGHT: (C)1980,JPO&Japio
JP54070206A 1979-06-05 1979-06-05 High-density phase boron nitride-containing sintered body for cutting tools Expired JPS5832225B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54070206A JPS5832225B2 (en) 1979-06-05 1979-06-05 High-density phase boron nitride-containing sintered body for cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54070206A JPS5832225B2 (en) 1979-06-05 1979-06-05 High-density phase boron nitride-containing sintered body for cutting tools

Publications (2)

Publication Number Publication Date
JPS55161046A true JPS55161046A (en) 1980-12-15
JPS5832225B2 JPS5832225B2 (en) 1983-07-12

Family

ID=13424809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54070206A Expired JPS5832225B2 (en) 1979-06-05 1979-06-05 High-density phase boron nitride-containing sintered body for cutting tools

Country Status (1)

Country Link
JP (1) JPS5832225B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108349821A (en) * 2016-10-06 2018-07-31 住友电气工业株式会社 Manufacture method, boron nitride polycrystalline body, cutting element, wear resistant tools and the milling tool of boron nitride polycrystalline body
CN112176238A (en) * 2020-10-13 2021-01-05 广东正信硬质材料技术研发有限公司 Ultra-fine grain hard alloy and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108349821A (en) * 2016-10-06 2018-07-31 住友电气工业株式会社 Manufacture method, boron nitride polycrystalline body, cutting element, wear resistant tools and the milling tool of boron nitride polycrystalline body
CN108349821B (en) * 2016-10-06 2021-11-02 住友电气工业株式会社 Method for producing boron nitride polycrystal, cutting tool, wear-resistant tool, and grinding tool
CN112176238A (en) * 2020-10-13 2021-01-05 广东正信硬质材料技术研发有限公司 Ultra-fine grain hard alloy and preparation method thereof
CN112176238B (en) * 2020-10-13 2021-08-31 广东正信硬质材料技术研发有限公司 Ultra-fine grain hard alloy and preparation method thereof

Also Published As

Publication number Publication date
JPS5832225B2 (en) 1983-07-12

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