[go: up one dir, main page]

WO2008147008A1 - Plaquette pour outil de coupe - Google Patents

Plaquette pour outil de coupe Download PDF

Info

Publication number
WO2008147008A1
WO2008147008A1 PCT/KR2007/006570 KR2007006570W WO2008147008A1 WO 2008147008 A1 WO2008147008 A1 WO 2008147008A1 KR 2007006570 W KR2007006570 W KR 2007006570W WO 2008147008 A1 WO2008147008 A1 WO 2008147008A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
flank
amount
cutting tool
cermet
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.)
Ceased
Application number
PCT/KR2007/006570
Other languages
English (en)
Inventor
Sung Gu Lee
Se Ung Oh
Sun Yong Ahn
Geun Woo Park
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.)
Korloy Inc
Original Assignee
Korloy Inc
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 Korloy Inc filed Critical Korloy Inc
Publication of WO2008147008A1 publication Critical patent/WO2008147008A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B23B27/148—Composition of the cutting inserts
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • 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
    • B23B2222/16—Cermet
    • 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
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/88—Titanium
    • 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
    • B23B2222/92—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/144—Wear indicators
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2204/00—End product comprising different layers, coatings or parts of cermet

Definitions

  • the present invention relates to an insert for a cutting tool, and more particularly, to an insert for a cutting tool, in which the top and flank thereof have different compositions.
  • cemented carbide or cermet which is used for a cutting tool, includes an iron-group metal, for example, Co, Ni, or Fe, as a binder enabling liquid phase sintering.
  • iron-group binder metal has a melting point lower than that of WC or TiCN, which is a main component of the cemented carbide or cermet, and has superior wettability, it is first transferred to a liquid phase at the time of sintering, to thus play a role as a medium enabling sintering synthesis through solution-repre- cipitation.
  • Such a binder metal has lower hardness than WC or TiCN, which is a main component of a cemented carbide cutting tool, in terms of the properties of the cutting tool, and thus functions to improve the toughness of the cutting tool.
  • WC or TiCN which is a main component of a cemented carbide cutting tool
  • the binder metal is partially liquefied at a cutting temperature (about 800- 1000 0 C) and is softened, plastic deformation and fusion result, consequently decreasing the lifetime of the insert for a cutting tool.
  • the flank of the insert which does not directly participate in cutting but functions as a support at the time of cutting, contains a binder metal in a small amount, edge hardness is increased, and boundary breakage results at the time of cutting.
  • the surface color of the cemented carbide or cermet varies depending on the composition and roughness of the surface thereof, it may be controlled by changing the starting composition and a sintering method.
  • the major factor determining the surface color, from the point of view of the composition, is the amount of binder metal. When the amount of binder metal of the surface of the insert is high, a light silver color is evident. On the other hand, when the amount thereof is low, a dark gray color can be seen.
  • the insert for a cutting tool which is commercially available at present, is manufactured in a manner such that the amount of binder metal in the top and flank surfaces thereof is appropriately maintained in consideration of the above properties.
  • the amounts of the binder metals in the top and flank surfaces of the insert are the same, it is difficult to completely overcome the above two problems (top fusion and boundary chipping) to maximize the lifetime of the insert for a cutting tool.
  • the top of the insert has the same composition as the flank thereof, the colors of the top and the flank are similar. In the case where the surface color is dark gray or black, it is not easy to determine the extent of wear of the insert for a cutting tool.
  • US Patent Application Publication No. 2002003951 discloses an insert for a cutting tool, in which the top and flank of the coated insert have different colors. Because the present invention aims to provide an insert having different top and flank compositions to improve cutting performance and show different colors, there is a distinction between the present invention and the disclosure of the US patent.
  • an object of the present invention is to provide an insert for a cutting tool, in which the top and flank thereof have different compositions.
  • the insert for a cutting tool according to the present invention is formed so that the top thereof contains second carbide, nitride or carbonitride in a large amount or in a small amount, depending on the end use thereof, and simultaneously, the composition for the flank thereof is controlled to thus exhibit appropriate hardness.
  • W which is a main component of cemented carbide
  • Ti which is a main component of cermet
  • a binder metal may be used in a small amount for the top of the insert and in a large amount for the flank of the insert.
  • the flank of the insert has a lighter color than the top thereof, advantageously facilitating determination of the extent of wear of the tool during the cutting.
  • second carbide means carbide, nitride or car- bonitride of Group 4A-6A elements, other than Ti carbide, nitride or carbonitride.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and has a composition distribution such that an amount of W in the flank of the insert is 1.05-10 times as much as that in the top thereof.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and has a composition distribution such that an amount of W in the top of the insert is 1.05-10 times as much as that in the flank thereof.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which at least one selected from among Group 4A, 5A, and 6A elements, other than W, is used in an amount of less than 0.5 wt% for the flank of the insert, and is used in an amount of 0.5-25 wt% for the top of the insert.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which at least one selected from among Group 4A, 5A, and 6A elements, other than W, is used in an amount of less than 0.5 wt% for the top of the insert, and is used in an amount of 0.5-25 wt% for the flank of the insert.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which an amount of at least one selected from among Group 4A, 5A, and 6A elements, other than W, in the flank of the insert is 1.1-50 times as much as that in the top of the insert.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which an amount of at least one selected from among Group 4A, 5A, and 6A elements, other than W, in the top of the insert is 1.1-50 times as much as that in the flank of the insert.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which an amount of at least one selected from among Co, Ni, and Fe, as a binder metal, in the flank of the insert is 1.1-10 times as much as that in the top of the insert.
  • an insert for a cutting tool which comprises cemented carbide or cermet, and in which an amount of at least one selected from among Co, Ni, and Fe, as a binder metal, in the top of the insert is 1.1-10 times as much as that in the flank of the insert.
  • an insert for a cutting tool has different compositions for the top and flank thereof.
  • the top and flank of the insert are formed to have different compositions, thereby maximizing the lifetime of the insert for a cutting tool.
  • a binder metal is used in a larger amount for the flank of the insert than for the top thereof, and thus the color of the flank of the insert is lighter, advantageously facilitating the determination of the extent of wear of the cutting tool.
  • FIG. 1 is a schematic view illustrating an insert for a cutting tool.
  • the present invention provides an insert for a cutting tool, in which the top and flank thereof have different compositions, through analysis of the surface of the insert or analysis of the insert within a depth of 100 D from the surface thereof using any one analyzer selected from among XRF, XRD, GDOES, and EDX.
  • the amount of W of the flank is
  • the amount of W of the top is 1.05-10 times as much as that of the flank.
  • the amount of at least one selected from among Group 4A, 5A, and 6A elements, other than W, is less than 0.5 wt% for the flank of the insert, and is 0.5-25 wt% for the top of the insert.
  • 6A elements other than W, is less than 0.5 wt% for the top of the insert and is 0.5-25 wt% for the flank of the insert.
  • the amount of at least one selected from among Group 4A, 5A, and 6A elements, other than W, in the flank of the insert is 1.1-50 times as much as that in the top thereof, or the amount of at least one selected from among Group 4A, 5A, and 6A elements, other than W, in the top of the insert is 1.1-50 times as much as that in the flank thereof.
  • the amount of at least one selected from among Co, Ni, and Fe, as a binder metal, in the flank of the insert is 1.1-10 times as much as that in the top thereof, or the amount of at least one selected from among Co, Ni, and Fe, as a binder metal, in the top of the insert is 1.1-10 times as much as that in the flank thereof.
  • flank of the insert has a lighter color than the top thereof.
  • the present invention provides a coated cutting tool insert, manufactured using the above insert as a base metal.
  • a mixture composed mainly of 40-75 wt% of at least one selected from among Ti carbide, nitride and carbonitride and 5-20 wt% of an iron-group metal (Fe, Ni, Co), and including, as a primary additive, 10-25 wt% of tungsten carbide (WC), and, as secondary additives for improving properties, Ti and at least one selected from among carbide, nitride and carbonitride of Group 4A-6A elements, other than W, wherein each of Ti and the at least one is 12 wt% or less and the total amount of the secondary additives is 10-15 wt%, is subjected to vacuum sintering or sintering in an inert gas atmosphere, thus producing a sintered cermet insert body.
  • an iron-group metal Fe, Ni, Co
  • WC tungsten carbide
  • secondary additives for improving properties Ti and at least one selected from among carbide, nitride and carbonitride of Group 4A-6A elements, other than W,
  • a mixture comprising 70-94 wt% of WC, 5-15 wt% of an iron-group metal (Fe, Ni, Co) and 1-15 wt% of a secondary additive (at least one selected from among carbide, nitride and carbonitride of Ti, Ta, Hf, V, Cr, Nb, Zr, Mo), is subjected to vacuum sintering, sintering in an inert gas atmosphere, or pressure sintering, thus producing a sintered cemented carbide insert body.
  • the sintered cemented carbide insert body thus obtained may be additionally heat-treated, thus providing a sintered cemented carbide insert body having different properties.
  • the top of the insert thus obtained is subjected to surface treatment in the form of beating using liquid phase or solid phase media at high pressure, beating using solid phase media at atmospheric pressure, polishing using a brush, polishing using a paste or polishing cloth, grinding using a grinding wheel (elastic grindstone), or ion beam irradiation, so that the composition of the top of the insert is different from that of the flank thereof.
  • the cutting insert treated through the aforementioned method is advantageous because it may be better protected both from fusion and from boundary chipping compared to commercially available inserts, and therefore, the lifetime of the insert is increased, and furthermore, the flank of the insert has a lighter color than the top thereof, thus easily determining the extent of wear thereof.
  • the amount of at least one selected from among Ti carbide, nitride and carbonitride is less than 40 wt%, hardness, which is an advantage of cermet, is remarkably decreased.
  • the amount exceeds 75 wt% the intrinsic toughness of the sintered body is very poor, thus making it difficult to improve cutting toughness.
  • the amount of this component is set within the above range.
  • the amount of iron-group binder metal is less than 5 wt%, a densely sintered body cannot be obtained due to an insufficient liquid phase volume upon liquid phase sintering.
  • the amount exceeds 20 wt% wear resistance is drastically decreased at the time of cutting.
  • the amount of tungsten carbide, which is used as the primary additive and affects the quality of toughness in accordance with the improvement in the sinterability of the cermet is less than 10 wt%, the improvement of sinterability thereof is decreased.
  • the amount exceeds 25 wt% WC crystal grains, which are not dissolved, remain in the microstructure, adversely affecting the cutting performance of the cermet tool.
  • Ti and carbide, nitride, or carbonitride of Group 4A-6A elements, other than W have different influences on the properties of the sintered body depending on the combination thereof.
  • each of the secondary additives exceeds 12 wt%, properties thereof, which are inferior to Ti element, undesirably deteriorate the properties of the entire sintered body.
  • the total amount of the secondary additives is less than 10 wt%, the properties, including room-temperature hardness and strength, are not improved to desired levels, and thus the resultant insert is unsuitable for use as a material for a cutting tool.
  • vacuum sintering is conducted at 1400- 1500 0 C for 1 hour.
  • an inert gas atmosphere may be applied in the heating range of 1200- 1400 0 C.
  • a vacuum atmosphere is maintained at a sintering temperature of 1400 ⁇ 1500°C for 1 hour, the capture of nitrogen gas due to denitration of car- bonitride is minimized upon particle rearrangement and grain growth, thus inhibiting the production of pores.
  • the sintered cermet body thus manufactured has the binder metal present in a larger amount at the surface portion thereof than at the inner portion thereof, due to the exudation of a liquid phase from the surface thereof in the course of sintering and cooling.
  • the secondary additive carbide, nitride, or carbonitride of Group 4A-6A elements, other than W, is added to improve the sinterability depending on the improvement in wettability in the course of sintering, inhibit grain growth, and enhance high- temperature properties.
  • the total amount of the secondary additive is less than 1 wt%, the addition effects thereof are insignificant, and the addition purposes are eliminated.
  • the total amount thereof exceeds 15 wt% the overall alloy hardness is greatly increased, leading to brittleness.
  • vacuum sintering at 1400 ⁇ 1500°C or pressure sintering using an inert gas is conducted, thus manufacturing the cemented carbide.
  • the cemented carbide thus manufactured may be additionally heat-treated, thus varying the composition of the surface thereof.
  • Group 4A-6A elements, including W and Ti are distributed in larger amounts at the surface portion thereof than at the inner portion thereof, thus increasing the surface hardness.
  • the manufacture of the insert for a cutting tool according to the present invention is similar to the manufacture of general cermet or cemented carbide.
  • the present invention is directed not to the composition of the insert for a cutting tool and the man- ufacturing method thereof, but to the difference in the compositions for the top and flank of the insert for a cutting tool, to thus increase the lifetime of the insert.
  • the insert disclosed herein is manufactured for detailed experiments.
  • the sintered surface of the top of the insert obtained through the aforementioned method, is subjected to surface treatment in the form of beating using liquid phase or solid phase media at high pressure, beating using solid phase media at atmospheric pressure, polishing using a brush, polishing using a paste or polishing cloth, grinding using a grinding wheel (elastic grindstone), or ion beam irradiation, so that the composition of the top of the insert is changed, thereby completing the insert for a cutting tool, which is desired in the present invention.
  • the amount of the binder metal of the top of the insert that is to be removed may be controlled.
  • the amount of the binder metal of the flank of the insert is less than 1.1 times that of the top thereof, the difference in the composition between the top of the insert and the flank thereof is low, and the effects of the present invention are not realized. Because the aforementioned sintering method cannot be used to manufacture cermet in which the amount of the binder metal of the surface portion is at least 10 times that of the inner portion, the amount of the binder metal of the flank of the insert does not exceed 10 times that of the top thereof even if the surface treatment time is unlimitedly increased.
  • the amount of the binder metal of the flank of the insert is 1.1-10 times as much as that of the top thereof, thereby simultaneously inhibiting fusion of the top and boundary chipping of the flank at the time of cutting, consequently increasing the lifetime of the insert for a cutting tool.
  • cases in which the top of the insert may have a larger amount of binder metal than the flank thereof may be suitable.
  • the binder metal is distributed in a larger amount on the top of the insert than on the flank thereof, thus preventing abrupt breakage.
  • the flank of the insert is surface treated.
  • the amount of binder metal of the flank of the insert is less than 1.1 times that of the top thereof, the difference in the composition between the top of the insert and the flank thereof is low, and the effects of the present invention are not realized.
  • the above sintering method cannot be used to manufacture cermet in which the amount of the binder metal of the surface portion is at least 10 times that of the inner portion, the amount of the binder metal of the flank of the insert does not exceed 10 times that of the top thereof even if the surface treatment time is unlimitedly increased.
  • the flank of the insert has W in a larger amount than the top thereof, the lifetime of the cutting tool may be increased. Because W is a main component for increasing the strength and hardness of cemented carbide, when the amount of W is increased, hardness is enhanced.
  • Group 4A-6A elements including Ti, V, Cr, Zr, Nb, Mo,
  • Hf, and Ta, other than W are added so as to control grain growth and improve sin- terability and room-temperature and high-temperature properties.
  • elements including Ti, V, Cr, Nb, Mo, Hf, and Ta, other than W
  • particle shedding occurs due to contact with cutting chips, and the tool is damaged by minute chipping.
  • a workpiece such as soft steel or stainless steel, which creates fusion, heat and a chemical reaction occur between the workpiece and the insert for a cutting tool.
  • the lifetime of the insert for a cutting tool is preferably increased.
  • the flank of the insert contains elements, including Ti, V, Cr, Zr, Nb, Mo, Hf, and Ta, other than W, in appropriate amounts, thereby assuring high-temperature strength and hardness.
  • the top of the insert is formed so that the total amount of Group 4A-6A elements, including Ti, V, Cr, Zr, Nb, Mo, Hf, and Ta, other than W, is less than 0.5 wt%, and the flank thereof is formed with 0.5-25 wt% of the above elements, thereby increasing the lifetime of the insert for a cutting tool when working a high-hardness workpiece, such as cast iron.
  • flank of the insert is formed so that the total amount of Group 4A-6A elements, including Ti, V, Cr, Zr, Nb, Mo, Hf, and Ta, other than W, is less than 0.5 wt%, and the top thereof is formed with 0.5-25 wt% of the above elements, thereby increasing the lifetime of the insert for a cutting tool when working a fusible workpiece, such as soft steel or stainless steel.
  • Group 4A-6A elements including Ti, V, Cr, Zr, Nb, Mo,
  • Hf, and Ta, other than W, in the flank of the insert is 1.05-50 times as much as that in the top thereof, thus increasing the lifetime of the insert for a cutting tool when cutting a high-hardness workpiece, such as cast iron.
  • the amount of Group 4A-6A elements, including Ti, V, Cr, Zr, Nb, Mo, Hf, and Ta, other than W, in the top of the insert is 1.05-50 times as much as that in the flank thereof, thus increasing the lifetime of the insert for a cutting tool when cutting a fusible workpiece, such as soft steel or stainless steel.
  • the present inventors conducted sintering, and the resultant sintered body was ground inward as deep as 1 mm from the surface, after which a cermet cutting tool insert was manufactured so as to have the XRF composition analysis results shown in Table 1 below.
  • the sintered surface of the top of the insert was subjected to beating treatment using high-pressure liquid phase media, thus manufacturing a cermet cutting tool insert, in which the top and flank thereof had different amounts of binder metal.
  • the cutting test was conducted under the following conditions. The results are summarized in Table 1 below.
  • # ⁇ composition indicates an amount (wt%) of Group 4 A- ⁇ 6A including Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, other than W, and ratio thereof indicates sum of carbide of flank/ sum of carbide of top * 100 (%)

Landscapes

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

Abstract

La présente invention concerne une plaquette pour un outil de coupe, dans laquelle la partie supérieure et la partie de flanc sont de compositions différentes. La durée de vie de la plaquette pour outil de coupe augmente grâce aux différentes compositions de la partie supérieure et de la partie de flanc de celle-ci. Selon l'utilisation finale d'un outil de coupe, la partie supérieure de la plaque pour outil de coupe est contrôlée pour avoir une composition permettant d'obtenir une dureté forte ou faible, ou la quantité de liant métallique est contrôlée, empêchant ainsi la cassure, l'usure de la partie supérieure et la fusion au moment de la coupe. La partie latérale de la plaquette est formée de telle manière que sa composition puisse conserver la dureté appropriée, empêchant ainsi l'ébarbage des bords, ce qui augmente la durée de vie de la plaquette. La partie de flanc de la plaquette est d'une couleur plus claire que celle de la partie supérieure de celle-ci, ce qui facilite l'identification de l'ampleur de l'usure de la plaquette.
PCT/KR2007/006570 2007-05-29 2007-12-17 Plaquette pour outil de coupe Ceased WO2008147008A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070051975A KR20080104752A (ko) 2007-05-29 2007-05-29 절삭공구 인써트
KR10-2007-0051975 2007-05-29

Publications (1)

Publication Number Publication Date
WO2008147008A1 true WO2008147008A1 (fr) 2008-12-04

Family

ID=40075214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/006570 Ceased WO2008147008A1 (fr) 2007-05-29 2007-12-17 Plaquette pour outil de coupe

Country Status (2)

Country Link
KR (1) KR20080104752A (fr)
WO (1) WO2008147008A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016047585A1 (fr) * 2014-09-26 2016-03-31 三菱マテリアル株式会社 Outil de coupe à corps fritté composite
JP2019042830A (ja) * 2017-08-30 2019-03-22 三菱マテリアル株式会社 複合焼結体切削工具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05171335A (ja) * 1991-12-16 1993-07-09 Toshiba Tungaloy Co Ltd 異層表面調質焼結合金及びその製造方法
US5395700A (en) * 1991-06-25 1995-03-07 Sumitomo Electric Industries, Ltd. Hard sintered compact for tools
JP2000296401A (ja) * 1999-04-13 2000-10-24 Honda Motor Co Ltd 複合材製バイト
US20020039521A1 (en) * 2000-10-02 2002-04-04 Wolfgang Votsch Cutting insert with wear detection
JP2003013169A (ja) * 2001-04-27 2003-01-15 Allied Material Corp 耐酸化性に優れたＷＣ−Ｃｏ系微粒超硬合金
US6638474B2 (en) * 2000-03-24 2003-10-28 Kennametal Inc. method of making cemented carbide tool
US20040187638A1 (en) * 2001-07-23 2004-09-30 Hans-Wilm Heinrich Fine grained sintered cemented carbide, process for manufacturing and use thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395700A (en) * 1991-06-25 1995-03-07 Sumitomo Electric Industries, Ltd. Hard sintered compact for tools
JPH05171335A (ja) * 1991-12-16 1993-07-09 Toshiba Tungaloy Co Ltd 異層表面調質焼結合金及びその製造方法
JP2000296401A (ja) * 1999-04-13 2000-10-24 Honda Motor Co Ltd 複合材製バイト
US6638474B2 (en) * 2000-03-24 2003-10-28 Kennametal Inc. method of making cemented carbide tool
US20020039521A1 (en) * 2000-10-02 2002-04-04 Wolfgang Votsch Cutting insert with wear detection
JP2003013169A (ja) * 2001-04-27 2003-01-15 Allied Material Corp 耐酸化性に優れたＷＣ−Ｃｏ系微粒超硬合金
US20040187638A1 (en) * 2001-07-23 2004-09-30 Hans-Wilm Heinrich Fine grained sintered cemented carbide, process for manufacturing and use thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016047585A1 (fr) * 2014-09-26 2016-03-31 三菱マテリアル株式会社 Outil de coupe à corps fritté composite
JP2016068156A (ja) * 2014-09-26 2016-05-09 三菱マテリアル株式会社 複合焼結体切削工具
CN106794523A (zh) * 2014-09-26 2017-05-31 三菱综合材料株式会社 复合烧结体切削工具
CN106794523B (zh) * 2014-09-26 2019-10-22 三菱综合材料株式会社 复合烧结体切削工具
US10773307B2 (en) 2014-09-26 2020-09-15 Mitsubishi Materials Corporation Composite sintered body cutting tool
JP2019042830A (ja) * 2017-08-30 2019-03-22 三菱マテリアル株式会社 複合焼結体切削工具

Also Published As

Publication number Publication date
KR20080104752A (ko) 2008-12-03

Similar Documents

Publication Publication Date Title
JP5328653B2 (ja) Ｔｉ基サーメットおよび被覆サーメット並びに切削工具
EP2474634B1 (fr) Alliage super-dur et outil de coupe utilisant ce dernier
US7762747B2 (en) Cermet insert and cutting tool
CN101189090A (zh) 金属陶瓷制刀片及切削工具
JP2009035802A (ja) 超硬合金
EP3450591A1 (fr) Outil de coupage et son procédé de fabrication
CN109562461A (zh) 耐熔敷崩刀性及耐剥离性优异的表面包覆切削工具
JP2014198362A (ja) 表面被覆切削工具
WO2008147008A1 (fr) Plaquette pour outil de coupe
JP5196122B2 (ja) 表面被覆切削工具
JP4069749B2 (ja) 荒加工用切削工具
JP2007160497A (ja) 硬質被覆層の改質α型Ａｌ２Ｏ３層がすぐれた結晶粒界面強度を有する表面被覆サーメット製切削工具
KR101302374B1 (ko) 내마모성과 내치핑성이 우수한 초경합금
JP2004330314A (ja) 被覆超硬合金工具
JP6761597B2 (ja) 硬質被覆層がすぐれた耐チッピング性を発揮する表面被覆切削工具
JP2007069309A (ja) 高熱発生を伴なう高速切削加工ですぐれた耐摩耗性を発揮する炭窒化チタン基サーメット製スローアウエイチップ
JP2014029001A (ja) サーメット、サーメットの製造方法、及び切削工具
EP2619342B1 (fr) Outil de coupe à base de nitrure de bore cubique fritté
JP2011031318A (ja) 硬質被覆層がすぐれた耐チッピング性を発揮する表面被覆切削工具
JP4284153B2 (ja) 切削方法
KR100497850B1 (ko) 고인성과 내마모성을 겸비한 탄화텅스텐(ｗｃ)계 소결합금및 이를 이용한 절삭공구
JP4474644B2 (ja) 硬質被覆層が高速断続切削加工ですぐれた耐チッピング性を発揮する表面被覆サーメット製切削工具
JP4747338B2 (ja) 難削材の高速切削加工で硬質被覆層がすぐれた耐チッピング性を発揮する表面被覆サーメット製切削工具
JP2005153100A (ja) 仕上げ加工用切削工具
KR100726141B1 (ko) 절삭공구 인써트

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: 07851541

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: 07851541

Country of ref document: EP

Kind code of ref document: A1