WO2020111658A1 - Insert de coupe pour des matériaux difficiles à découper - Google Patents

Insert de coupe pour des matériaux difficiles à découper Download PDF

Info

Publication number
WO2020111658A1
WO2020111658A1 PCT/KR2019/016025 KR2019016025W WO2020111658A1 WO 2020111658 A1 WO2020111658 A1 WO 2020111658A1 KR 2019016025 W KR2019016025 W KR 2019016025W WO 2020111658 A1 WO2020111658 A1 WO 2020111658A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting insert
cemented carbide
base material
difficult
thin film
Prior art date
Application number
PCT/KR2019/016025
Other languages
English (en)
Korean (ko)
Inventor
이성구
김용현
김정욱
Original Assignee
한국야금 주식회사
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 한국야금 주식회사 filed Critical 한국야금 주식회사
Publication of WO2020111658A1 publication Critical patent/WO2020111658A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/28—Details of hard metal, i.e. cemented carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/18—Ceramic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23B2228/08—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner applied by physical vapour deposition [PVD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/28—Details of hard metal, i.e. cemented carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2226/00—Materials of tools or workpieces not comprising a metal
    • B23C2226/18—Ceramic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23C2228/08—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner applied by physical vapour deposition [PVD]

Definitions

  • the present invention relates to a PVD ceramic thin film coating cutting insert that can be suitably used for the processing of difficult-to-reduce materials such as Inconel or titanium.
  • cemented carbide As a base material for abrasion-resistant tools or cutting tools used for cutting metal, cemented carbide (WC-Co alloy), TiC or Ti(C,N), etc. are mainly used as hard materials, and Co, Ni, and Fe are used as binders. Cermet, other ceramics or high-speed steels are used.
  • cemented carbide is a composite material in which hard tungsten carbide (WC) particles are dispersed in a binder metal such as cobalt (Co), nickel (Ni), or iron (Fe), which has excellent toughness. It is widely used as a base material.
  • a grain growth inhibitory substance such as vanadium carbide (VC) is added to obtain a microstructure, or to reduce the concentration of the binder metal on the surface of the sintered body. Microstructure control such as or hatching has been used a lot.
  • a ceramic insert is coated on a cutting insert for machining a difficult-to-cut material to prevent heat-blocking effect, abrasion resistance, and adhesion with a cemented carbide base material during cutting.
  • a problem to be solved by the present invention is to provide a cutting insert capable of prolonging life by suppressing plastic deformation of a ceramic thin film generated at the edge of a cutting insert during machining of difficult-to-cut materials and suppressing adhesion of a base material.
  • SMS Saturation magnetization value of sintered body ⁇ 100/TMS
  • the cutting insert according to the present invention through the combination of a cemented carbide base material having a microstructure controlled to improve plastic deformation and prevent adhesion, and a thin ceramic thin film with improved adhesion and hardness, are used for cutting inserts under high temperature and high pressure. By suppressing the damage of the ceramic thin film generated at the edge of the blade and the adhesion of the base material, it is possible to greatly improve the life of the cutting insert used in the machining of difficult-to-cut materials.
  • Figure 1 shows the state after the cutting test of the cutting insert according to the Examples and Comparative Examples of the present invention.
  • cemented carbide used as a base material used in the cutting tool according to the embodiment of the present invention was manufactured through the following process, and cemented carbide according to various compositions and processes was prepared together with the base material according to the embodiment of the present invention.
  • 'A( ⁇ m)' means the maximum size in the inscribed diameter that can be inserted into the Co structure after sintering.
  • 'B(%)' means the ratio of the area of the Co structure in which the area of 1.5 ⁇ m x 1.5 ⁇ m (horizontal ⁇ vertical) enters the interior of the Co structure in the Co structure after sintering.
  • 'Particle size 4.5' means that the average particle size of the starting powder used in the production is 4.5 ⁇ m.
  • 'Particle size 2.5' means that the average particle size of the starting powder used in the production is 2.5 ⁇ m.
  • 'Particle size 1.0' means that the average particle size of the starting powder used in the preparation is 1.0 ⁇ m.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Powder Metallurgy (AREA)

Abstract

La présente invention se rapporte à un insert de coupe revêtu de film mince de céramique PVD qui peut être utilisé de manière appropriée pour traiter des matériaux difficiles à découper ayant une faible conductivité thermique, tels que l'Inconel et le titane. L'insert de coupe selon la présente invention comprend : un matériau de base en carbure cémenté ayant une valeur de SMS comprise entre 50 et 80 % obtenue en suivant [équation 1], lorsqu'une partie quelconque du matériau de base en carbure cémenté est observée à un grossissement 20 000 X avec un microscope électronique à balayage, la surface d'une structure de Co dans laquelle une zone de 1,5 µm × 1,5 µm (largeur x longueur) de la structure de Co entre, étant égale ou inférieure à 10 % de la surface totale de la structure de Co ; et un film mince de céramique ayant une épaisseur comprise entre 0,4 et 1,5 µm formé sur le matériau de base en carbure cémenté. [Équation 1] SMS = valeur de magnétisation de saturation d'un corps fritté × 100/TMS (TMS = rapport de masse de 2010 × Co)
PCT/KR2019/016025 2018-11-30 2019-11-21 Insert de coupe pour des matériaux difficiles à découper WO2020111658A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180151846A KR102178996B1 (ko) 2018-11-30 2018-11-30 난삭재용 절삭 인써트
KR10-2018-0151846 2018-11-30

Publications (1)

Publication Number Publication Date
WO2020111658A1 true WO2020111658A1 (fr) 2020-06-04

Family

ID=70852820

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/016025 WO2020111658A1 (fr) 2018-11-30 2019-11-21 Insert de coupe pour des matériaux difficiles à découper

Country Status (2)

Country Link
KR (1) KR102178996B1 (fr)
WO (1) WO2020111658A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188489A (en) * 1991-05-31 1993-02-23 Kennametal Inc. Coated cutting insert
KR20070110318A (ko) * 2005-03-28 2007-11-16 쿄세라 코포레이션 초경합금 및 절삭 공구
US20120093597A1 (en) * 2009-04-27 2012-04-19 Stefan Ederyd Cemented Carbide Tools
JP2013111711A (ja) * 2011-11-29 2013-06-10 Mitsubishi Materials Corp 靭性と耐摩耗性に優れたダイヤモンド被覆超硬合金製切削工具
KR20150111476A (ko) * 2014-03-25 2015-10-06 한국야금 주식회사 절삭공구용 초경합금 소결체
KR101792534B1 (ko) * 2016-05-30 2017-11-02 한국야금 주식회사 초경합금 절삭공구
KR101859644B1 (ko) * 2017-11-28 2018-05-18 한국야금 주식회사 절삭공구용 소결합금 및 난삭재용 절삭공구

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100130752A (ko) * 2009-06-04 2010-12-14 한국야금 주식회사 절삭공구용 ｐｖｄ 다층막
KR101536462B1 (ko) * 2013-12-23 2015-07-24 한국야금 주식회사 난삭재 및 주철가공 절삭공구용 피막

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188489A (en) * 1991-05-31 1993-02-23 Kennametal Inc. Coated cutting insert
KR20070110318A (ko) * 2005-03-28 2007-11-16 쿄세라 코포레이션 초경합금 및 절삭 공구
US20120093597A1 (en) * 2009-04-27 2012-04-19 Stefan Ederyd Cemented Carbide Tools
JP2013111711A (ja) * 2011-11-29 2013-06-10 Mitsubishi Materials Corp 靭性と耐摩耗性に優れたダイヤモンド被覆超硬合金製切削工具
KR20150111476A (ko) * 2014-03-25 2015-10-06 한국야금 주식회사 절삭공구용 초경합금 소결체
KR101792534B1 (ko) * 2016-05-30 2017-11-02 한국야금 주식회사 초경합금 절삭공구
KR101859644B1 (ko) * 2017-11-28 2018-05-18 한국야금 주식회사 절삭공구용 소결합금 및 난삭재용 절삭공구

Also Published As

Publication number Publication date
KR20200065402A (ko) 2020-06-09
KR102178996B1 (ko) 2020-11-16

Similar Documents

Publication Publication Date Title
EP3369831A1 (fr) Comprimé frité et son procédé de production
EP2450136A1 (fr) Cermet et cermet enduit
EP2407263B1 (fr) Cermet et cermet revêtu
EP3219694A1 (fr) Corps fritté composite pour outil de coupe et outil de coupe l'utilisant
JP2007044807A (ja) 超硬合金製極小径エンドミル
EP1087026B1 (fr) Cermet à base de TiCN
WO2020111658A1 (fr) Insert de coupe pour des matériaux difficiles à découper
KR101574885B1 (ko) 절삭공구용 초경합금 소결체
JP2003080412A (ja) 高速穴あけ加工で先端切刃面がすぐれた耐チッピング性を発揮する表面被覆超硬合金製ミニチュアドリル
JP2009102709A (ja) 積層構造型超硬合金とその製造方法および前記超硬合金により形成された工具
WO2015099305A1 (fr) Alliage fritté à base de ti ayant une résistance au choc thermique améliorée et outil de coupe l'utilisant
JPS5918157A (ja) 切削工具用酸化アルミニウム系セラミツク
KR102167990B1 (ko) 난삭재용 절삭 인써트
JPS6256944B2 (fr)
JPS6041020B2 (ja) 高強度および高硬度を有するアルミナ系セラミツク
EP0963962A1 (fr) Agglomere ceramique a base d'alumine et procede de production dudit agglomere
KR101816712B1 (ko) 경질피막이 형성된 절삭공구
JP3010774B2 (ja) アルミナ基セラミックス
KR102265819B1 (ko) 난삭재용 절삭 인써트
WO2011049361A4 (fr) Matériau composite résistant à l'abrasion à base de carbure
JP2514088B2 (ja) 高硬度及び高靭性焼結合金
JPH09227981A (ja) 超硬合金
KR101901396B1 (ko) 절삭공구용 Ti계 소결합금 및 그 제조방법
KR100542815B1 (ko) 초미립 고질소 함유 탄질화 티탄기 서멧트 및 이의 제조방법
JP2666338B2 (ja) 炭化タングステン基超硬合金製エンドミル

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19891362

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19891362

Country of ref document: EP

Kind code of ref document: A1