KR950032671A - Nitrogen containing sintered hard alloy - Google Patents

Nitrogen containing sintered hard alloy Download PDF

Info

Publication number
KR950032671A
KR950032671A KR1019950012885A KR19950012885A KR950032671A KR 950032671 A KR950032671 A KR 950032671A KR 1019950012885 A KR1019950012885 A KR 1019950012885A KR 19950012885 A KR19950012885 A KR 19950012885A KR 950032671 A KR950032671 A KR 950032671A
Authority
KR
South Korea
Prior art keywords
layer
less
nitrogen
volume
hard
Prior art date
Application number
KR1019950012885A
Other languages
Korean (ko)
Other versions
KR0180522B1 (en
Inventor
게이이치 쓰다
가즈타카 이소베
아키히코 이케가야
노부유키 기타가와
Original Assignee
구라우치 노라다카
스미토모덴키고교 가부시키가이샤
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
Priority claimed from JP10558494A external-priority patent/JP3648758B2/en
Priority claimed from JP04929095A external-priority patent/JP3803694B2/en
Application filed by 구라우치 노라다카, 스미토모덴키고교 가부시키가이샤 filed Critical 구라우치 노라다카
Publication of KR950032671A publication Critical patent/KR950032671A/en
Application granted granted Critical
Publication of KR0180522B1 publication Critical patent/KR0180522B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B22F3/101—Changing atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1028—Controlled cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/04—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/02—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/20—Use of vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

질소 함유 소결 경질 합금은 Ti, 6A족 금속 및 WC를 소정의 조성으로 함유하는 경질상을 75중량% 이상 95중량%이하 함유하고, Ni, Co 및 불가피한 불순물을 함유하는 결합성을 5중량% 이상 25중량%이하 함유하며, Ti를 탄화물 등으로 환산하여 5중량% 이상 60중량% 이하 함유하고, 주기율표 6A족 금속을 탄화물로 환산하여 30중량% 이상 70중량% 이하 함유하며, 또한 경질상의 질소/(탄소+질소)가 원자비로 0.2이상 0.5미만이고, 가장 바깥 표면에 결합상 금속과 WC를 함유하는 연질층이 존재하고, 당해 연질층 바로 밑에 3㎛이상 30㎛이하의 두께로 WC를 함유하는 경질상이 거의 존재하지 않는 층이 존재한다. 이러한 조성에 의하면, 심한 열충격을 받는 조건하에서 가공할때에도 표면 피복을 실시하지 않고 또한 높은 신뢰성을 가진 절삭공구로서 사용가능한 질소 함유 소결 경질 합금을 제공할수 있다.Nitrogen-containing sintered hard alloys contain at least 75% by weight and at most 95% by weight of a hard phase containing Ti, a Group 6A metal and WC in a predetermined composition, and at least 5% by weight of a binder containing Ni, Co and unavoidable impurities. It contains 25 wt% or less, Ti is contained in the form of carbide or the like 5 wt% or more and 60 wt% or less, and contains 30 wt% or more and 70 wt% or less of the periodic table 6A metal in terms of carbide, and hard nitrogen / (Carbon + Nitrogen) has an atomic ratio of 0.2 or more and less than 0.5, and a soft layer containing a binding phase metal and WC is present on the outermost surface, and contains WC in a thickness of 3 µm or more and 30 µm or less directly under the soft layer. There is a layer with little hard phase. According to this composition, it is possible to provide a nitrogen-containing sintered hard alloy which can be used as a cutting tool without high surface coverage even when processing under severe thermal shock conditions.

Description

질소 함유 소결 경질 합금Nitrogen containing sintered hard alloy

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 삼출층(sweat layer)이 3개의 층으로 나누어 져서 최외층과 최하층에 Co, Ni의 결합층이 있고, 중간층에 WC층이 있는 것을 나타내는 합금 조직의 현미경 사진(SEM사진)이며, 제2도 및 제3도는 각각 동일조직 중의 Co 원소와 Ni원소의 분포를 나타내는 현미경 사진(EDX분석)이다.FIG. 1 is a micrograph (SEM image) of an alloy structure showing that a wet layer is divided into three layers, the outermost layer and the lower layer have a bonding layer of Co and Ni, and the middle layer has a WC layer. 2 and 3 are micrographs (EDX analysis) showing the distribution of Co and Ni elements in the same structure, respectively.

Claims (12)

(TiㆍWxWy)(CuN1-u)(단, M은 W를 제외한 주기율표 6A족 금속의 적어도 1종이고, 0＜x＜1이며, 0≤y≤0.9이고, 0≤u＜0.9이다) 및 WC를 함유하는 경질상을 75중량%이상 95중량%이하 함유하고, Ni, Co 및 불가피한 불순물을 함유하는 결합상을 5중량% 이상 25중량%이하 함유하며, Ti를 탄화물, 질화물 또는 탄질화물로 환산하여 5중량%이상 60중량%이하 함유하고, 주기율표 6A족 금속을 탄화물로 환산하여 30중량% 이항 70중량% 이하 함유하며, 경질상의 질소/(탄소+질소)가 원자비로 0.2이상 0.5미만이고, 가장 바깥 표면에 결합상 금속과 WC를 함유하는 연질층이 존재하고, 당해 연질층 바로 밑에 3㎛ 이상 30㎛이하의 두께로 WC를 함유하는 경질상이 거의 존재하지 않는 층을 갖는 질소 함유 소결 경질 합금.(TiWxWy) (CuN 1-u ) (wherein M is at least one of the Group 6A metals of the periodic table excluding W, 0 <x <1, 0 ≦ y ≦ 0.9, and 0 ≦ u <0.9) And at least 75 wt% and at most 95 wt% of a hard phase containing WC, and at least 5 wt% and at most 25 wt% of a combined phase containing Ni, Co and unavoidable impurities, wherein Ti is carbide, nitride or carbonitride. 5 to 60% by weight of the conversion table, and 6 to 70% by weight of the bimetallic group of Periodic Table 6A in terms of carbides, and 0.2 to 0.5 in atomic nitrogen / (carbon + nitrogen) in atomic ratio. Nitrogen-containing layer having a layer having less than and having a soft phase containing a binding phase metal and WC on the outermost surface and having a hard phase containing WC at a thickness of 3 µm or more and 30 µm or less directly under the soft layer. Sintered hard alloy. 제1항에 있어서, WC를 함유하는 경질상이 거의 존재하지 않는 층으로부터 가장 바깥 표면으로부터의 최대 깊이 1mm까지 내부를 향해 WC를 함유하는 경질상의 존재량이 점차 증가하는 질소 함유 소결 경질 합금.The nitrogen-containing sintered hard alloy according to claim 1, wherein the amount of the hard phase containing WC gradually increases from the layer where the hard phase containing WC is hardly present to the inside up to a maximum depth of 1 mm from the outermost surface. 제1항 또는 제2항에 있어서, WC를 함유하는경질상의 존재량이, 가장 바깥 표면으로부터 1mm이상의 깊이의 내부에서 5체적% 이상 50체적% 미만인 질소 함유소결 경질합금.The nitrogen-containing sintered hard alloy according to claim 1 or 2, wherein the amount of hard phase containing WC is 5 vol% or more and less than 50 vol% in a depth of 1 mm or more from the outermost surface. (TiㆍWxWy)(CuN1-u)(단, M은 W를 제외한 주기율표 4A족, 5A족, 6A족 금속의 적어도 1종이고, 0＜x＜1이며, 0≤y≤0.9이고, 0≤u＜0.9이다) 및 WC를 함유하는 경질상을 75중량% 이상 95중량% 이하 함유하고, Ni, Co 및 불가피한 불순물을 함유하는 결합상을 5중량% 이상 25중량% 이하 함유하며, Ti를 탄화물, 질화물 또는 탄질화물로 환산하여 5중량% 이상 60중량% 이하, 주기율표 6A족 금속을 탄화물로 환산하여 30중량%이상 70중량% 이하 , Ta, Nb의합계 함유량을 탄화물, 질화물 또는 탄질화물로 환산하여 2중량% 이상 15중량% 이하, V, Zr 및 Hf의 합계 함유량을 탄화물, 질화물 또는 탄질화물로 환산한 5중량%이하 함유하며, 경질상의 질소/(탄소+질소)가 원자비로 0.2이상 0.5미만이고, 가장 바깥 표면에 결합상 금속 및 WC를 함유하는 연질층이 존재하며, 당해 연질층 바로 밑에 3㎛이상 30㎛이하의 두께로 WC를 함유하는 경질상이 거의 존재하지 않는 층을 갖는 질소 함유 소결 경질 합금.(Ti.WxWy) (CuN 1-u ) (wherein M is at least one of Group 4A, 5A, and 6A metals of the periodic table excluding W, 0 <x <1, 0≤y≤0.9, and 0 ≦ u <0.9) and a hard phase containing WC and at least 75 wt% and at most 95 wt%, and at least 5 wt% and at most 25 wt% of a combined phase containing Ni, Co and unavoidable impurities; 5% to 60% by weight in terms of carbides, nitrides or carbonitrides; 30% to 70% by weight of Group 6A metals in the periodic table 2 to 15 wt% in total, less than or equal to 5 wt% of the total content of V, Zr and Hf in terms of carbides, nitrides or carbonitrides, with hard nitrogen / (carbon + nitrogen) of 0.2 in an atomic ratio It is less than 0.5, and there is a soft layer containing the binding phase metal and WC on the outermost surface, and it is 3 µm or more just under the soft layer. A nitrogen-containing sintered hard alloy having a layer in which a hard phase containing WC is hardly present at a thickness of 0 μm or less. 제4항에 있어서, WC를 함유하는 경질상이 거의 존재하지 않는 층으로부터 가장 바깥 표면으로부터의 최대 깊이 1mm까지 내부를 향해 WC를 함유하는 경질상의 존재량이 점차 증가하는 질소 함유 소결 경질 합금.5. The nitrogen-containing sintered hard alloy according to claim 4, wherein the amount of the hard phase containing WC gradually increases from the layer in which the hard phase containing WC is hardly present to the inside up to a maximum depth of 1 mm from the outermost surface. 제4항 또는 제5항에 있어서, WC를 함유하는 경질상의 존재량이, 가장 바깥 표면으로부터 1mm이상의 내부에서 5체적%이상 50체적%미만인 질소 함유 소결 경질합금.The nitrogen-containing sintered hard alloy according to claim 4 or 5, wherein the amount of hard phase containing WC is 5 vol% or more and less than 50 vol% within 1 mm or more from the outermost surface. WC를 필수로 하고, 주기율표의 4A족, 5A족, 6A족 중에서 선택된 적어도 1종류의 전이 금속의 질화물, 탄질화물 또는 이들의 복합 탄질화물을 함유하는 경질상의 Ni, Co 및 불가피한 불순물을 함유하는 결합상을 포함하는 질소 함유 소결 경질 합금에 있어서, 합금 표면부에 Ni 및 Co를 주성분으로 하는 금속 결합상과 WC를 함유하는 삼출층이 존재하고, 삼출층은 내부 방향을 향하여 최외층, 중간층 및 최하층의 순서로 3개의 층으로 나누어지고, 최외층은 WC가 0체적%이상 30체적%이하이며 잔여부가 Co 및 Ni를 주성분으로 하는 금속 결합상으로 구성되고, 중간층은 WC가 50체적%이상 100체적%이하이며, 잔여부가 Co 및 Ni를 주성분으로 하는 금속 결합상으로 구성되고, 최하층은 WC가 0체적%이상 30체적%이하이며, 잔여부가 Co 및 Ni를 주성분으로 하는 금속 결합상으로 구성되고, 최외층의 두께와 최하하층의 두께가 각각 0.1㎛이상 10㎛이하이고, 중간층의 두께가 0.5㎛ 이상 10㎛이하인 질소 함유 소결 경질 합금.Bonds containing WC as essential and hard Ni, Co and inevitable impurities containing nitrides, carbonitrides or complex carbonitrides of at least one transition metal selected from Groups 4A, 5A and 6A of the periodic table In the nitrogen-containing sintered hard alloy including the phase, there is an exudation layer containing WC and a metal-bonded phase containing Ni and Co as main components in the alloy surface portion, and the exudation layer is the outermost layer, the intermediate layer and the lower layer toward the inner direction. It is divided into three layers in the order of the outermost layer, the outermost layer is composed of a metal bonded phase having WC of 0 to 30% by volume and the remainder of Co and Ni as the main component, and the middle layer of WC of 50 to 100% by volume. Less than%, the remainder is composed of metal-bonded phase composed mainly of Co and Ni, and the lowest layer is composed of a metal-bonded phase composed of CoC and Ni mainly composed of WC and not less than 30% by volume. And the thickness of the outermost layer and the thickness of the lowermost layer is 0.1 µm or more and 10 µm or less, respectively, and the nitrogen-containing sintered hard alloy having a thickness of 0.5 µm or more and 10 µm or less. 제7항에 있어서, 삼출층 바로 밑에 Co 및 Ni를 주성분으로 하는 금속 결합상을 전혀 함유하지 않거나 2체적%이하 밖에 함유하지 않는 영역을 가지며, 또한 이 영역의 삼출층 바로 밑으로부터 내부 방향으로의 두께가 2㎛ 이상 100㎛ 이하인 질소 함유 소결 경질 합금.8. A region according to claim 7, which has a region directly below the exudation layer containing no metal-bonded phase containing Co and Ni as a main component or only no more than 2% by volume of the region, and from the bottom of the exudation layer to the inner direction. Nitrogen containing sintered hard alloy whose thickness is 2 micrometers or more and 100 micrometers or less. 제7항에 있어서, 삼출층 바로 밑에 WC를 전혀 함유하지 않거나 2체적% 이하 밖에 함유하지 않는 영역을 가지며, 또한 이 영역의 삼출층 바로 밑으로부터 내부 방향으로의 두께가 1㎛ 이상 500㎛ 이하인 질소 함유 소결 경질 합금.The nitrogen according to claim 7, which has a region which does not contain any WC or only 2% by volume or less directly under the exudation layer, and has a thickness in the inward direction from just under the exudation layer to 1 μm or more and 500 μm or less. Containing sintered hard alloys. 제9항에 있어서, 삼출층 바로 밑의 WC를 전혀 함유하지 않거나 2체적% 이하 밖에 함유하지 않는 영역 바로 밑으로부터 내부 방향으로 WC의 체적%가 점차 증가하고, 삼출층 바로 밑으로부터 1mm 이내의 깊이에서 WC의 체적%가 합금 전체의 평균 WC 체적%가 되도록 구성되는 질소 함유 소결 경질 합금.10. The method according to claim 9, wherein the volume percentage of WC gradually increases inwardly from underneath the region containing no WC just below the exudation layer or contains only 2 vol% or less, and the depth within 1 mm from just under the exudation layer. The sintered hard alloy containing nitrogen, wherein the volume% of WC is configured to be the average WC volume% of the entire alloy. 제8항에 있어서, 합금 표면부에 Ni 및 Co를 주성분으로 하는 금속 결합상과 WC를 함유하는 삼출층이 존재하고, 삼출층 바로 밑에 WC를 전혀 함유하지 않거나 2체적% 이하 밖에 함유하지 않는 영역을 가지며, 또한 이 영역의 삼출층 바로 밑으로부터 내부 방향으로의 두께가 1㎛ 이상 500㎛ 이하인 질소 함유 소결 경질 합금.The region according to claim 8, wherein an exudation layer containing WC and a metal-bonded phase containing Ni and Co as a main component is present in the alloy surface portion, and contains no WC or only 2% by volume or less under the exudation layer. And a nitrogen-containing sintered hard alloy having a thickness of 1 µm or more and 500 µm or less from just under the exudation layer in this region. 제11항에 있어서, 삼출층 바로 밑에 WC를 전혀 함유하지 않거나 2체적% 이하 밖에 함유하지 않는 영역 바로 밑으로부터 내부 방향으로 WC의 체적%가 점차 증가하고, 삼출층 바로 밑으로 부터 1mm이내의 깊이에서 WC의 체적%가 합금 전체의 평균 WC 체적%가 되도록 구성되는 질소 함유 소결 경질 합금.12. The method of claim 11, wherein the volume% of WC gradually increases from underneath the region that contains no WC or only less than 2% by volume below the exudation layer, and within 1 mm of the bottom of the exudation layer. The sintered hard alloy containing nitrogen, wherein the volume% of WC is configured to be the average WC volume% of the entire alloy. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012885A 1994-05-19 1995-05-19 Nitrogen containing sintered hard alloy KR0180522B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP94-105584 1994-05-19
JP10558494A JP3648758B2 (en) 1994-05-19 1994-05-19 Nitrogen-containing sintered hard alloy
JP95-049290 1995-02-15
JP04929095A JP3803694B2 (en) 1995-02-15 1995-02-15 Nitrogen-containing sintered hard alloy

Publications (2)

Publication Number Publication Date
KR950032671A true KR950032671A (en) 1995-12-22
KR0180522B1 KR0180522B1 (en) 1999-02-18

Family

ID=26389670

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950012885A KR0180522B1 (en) 1994-05-19 1995-05-19 Nitrogen containing sintered hard alloy

Country Status (3)

Country Link
EP (2) EP0687744B1 (en)
KR (1) KR0180522B1 (en)
DE (2) DE69523342T2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845376C5 (en) * 1998-07-08 2010-05-20 Widia Gmbh Hard metal or cermet body
ATE221140T1 (en) 1998-07-08 2002-08-15 Widia Gmbh CARBIDE OR CERMET BODY AND METHOD FOR PRODUCING IT
DE19922057B4 (en) * 1999-05-14 2008-11-27 Widia Gmbh Carbide or cermet body and process for its preparation
US6110603A (en) * 1998-07-08 2000-08-29 Widia Gmbh Hard-metal or cermet body, especially for use as a cutting insert
PT1548136E (en) * 2003-12-15 2008-06-12 Sandvik Intellectual Property Cemented carbide insert and method of making the same
WO2005056854A1 (en) 2003-12-15 2005-06-23 Sandvik Intellectual Property Ab Cemented carbide tools for mining and construction applications and method of making the same
JP5062541B2 (en) * 2011-03-15 2012-10-31 住友電工ハードメタル株式会社 Cutting edge replacement type cutting tool
JP6548071B2 (en) 2014-04-23 2019-07-24 三菱マテリアル株式会社 Surface coated cutting tool exhibiting excellent chipping resistance with hard coating layer
CN104399988B (en) * 2014-12-15 2016-06-15 技锋精密刀具（马鞍山）有限公司 A kind of ultra-thin little circular knife production system of hard alloy
JP6669471B2 (en) * 2015-11-02 2020-03-18 勝義 近藤 Method for producing nitrogen solid solution titanium sintered body
KR101863057B1 (en) * 2015-12-17 2018-06-01 한국야금 주식회사 Insert for cutting tools
CN114277299B (en) * 2021-12-28 2022-10-04 九江金鹭硬质合金有限公司 High-hardness hard alloy lath capable of resisting welding cracking

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487719A (en) * 1977-12-23 1979-07-12 Sumitomo Electric Industries Super hard alloy and method of making same
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
US4548786A (en) * 1983-04-28 1985-10-22 General Electric Company Coated carbide cutting tool insert
JPH0617531B2 (en) * 1986-02-20 1994-03-09 日立金属株式会社 Toughness
SE453202B (en) * 1986-05-12 1988-01-18 Sandvik Ab SINTER BODY FOR CUTTING PROCESSING
JPS63169356A (en) * 1987-01-05 1988-07-13 Toshiba Tungaloy Co Ltd Surface-tempered sintered alloy and its production
JP2684721B2 (en) * 1988-10-31 1997-12-03 三菱マテリアル株式会社 Surface-coated tungsten carbide-based cemented carbide cutting tool and its manufacturing method
JPH02131803A (en) * 1988-11-11 1990-05-21 Mitsubishi Metal Corp Cutting tool made of abrasion resistant cermet excelling in chipping resistance
JPH0726173B2 (en) * 1991-02-13 1995-03-22 東芝タンガロイ株式会社 High toughness cermet and method for producing the same
SE9101590D0 (en) * 1991-05-24 1991-05-24 Sandvik Ab SINTRAD CARBON Nitride Alloy with Binder Phase Enrichment
SE505425C2 (en) * 1992-12-18 1997-08-25 Sandvik Ab Carbide metal with binder phase enriched surface zone
EP0635580A4 (en) * 1993-02-05 1996-02-07 Sumitomo Electric Industries Nitrogen-containing hard sintered alloy.

Also Published As

Publication number Publication date
EP0822265A3 (en) 1998-04-15
DE69513086D1 (en) 1999-12-09
DE69513086T2 (en) 2000-07-13
DE69523342D1 (en) 2001-11-22
KR0180522B1 (en) 1999-02-18
DE69523342T2 (en) 2002-06-27
EP0687744B1 (en) 1999-11-03
EP0687744A3 (en) 1996-08-21
EP0822265B1 (en) 2001-10-17
EP0687744A2 (en) 1995-12-20
EP0822265A2 (en) 1998-02-04

Similar Documents

Publication Publication Date Title
KR100846519B1 (en) Chromium-containing cemented carbide body having a surface zone of binder enrichment
US4235630A (en) Wear-resistant molybdenum-iron boride alloy and method of making same
CN101018879B (en) Coated cutting cutter comprising carbide substrate and coating and its manufacture method
KR950032671A (en) Nitrogen containing sintered hard alloy
KR940005819A (en) Coated cemented carbide member and manufacturing method thereof
KR970062057A (en) Metallic glass alloy with five components
JPH0776135B2 (en) Abrasion resistant polycrystalline diamond thermal resistor
JPS62196352A (en) Tough cermet
KR840007032A (en) Tongue Scoop Samet
PL1664363T3 (en) Hard metal or cermet body and method for producing the same
KR890701252A (en) Seamet Cutting Tool
US6057046A (en) Nitrogen-containing sintered alloy containing a hard phase
JPS6133894B2 (en)
US5248352A (en) Tic-base cermet alloy
IL155936A (en) Coated cemented carbide cutting tool insert
EP0085125B1 (en) Cemented carbide compositions and process for making such compositions
US3779746A (en) Carbide alloys suitable for cutting tools and wear parts
JP3803694B2 (en) Nitrogen-containing sintered hard alloy
JPS6020457B2 (en) High-toughness boron nitride-based ultra-high pressure sintered material for cutting and wear-resistant tools
JP3394805B2 (en) High-strength coated cemented carbide
US5561830A (en) Method of producing a sintered carbonitride alloy for fine milling
JPH04116134A (en) Wc base sintered hard alloy excellent in toughness and sintered hard alloy coated with hard layer
JPH05171442A (en) Coated sintered hard alloy and its manufacture
JPS6067638A (en) Cermet for cutting tool and hot processing tool
US5568653A (en) Method of producing a sintered carbonitride alloy for semifinishing machining

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20121121

Year of fee payment: 15

FPAY Annual fee payment

Payment date: 20131118

Year of fee payment: 16

LAPS Lapse due to unpaid annual fee