WO2003089172A1 - Plaquette de coupe en matiere frittee sous haute pression a base de nitrure de bore cubique - Google Patents
Plaquette de coupe en matiere frittee sous haute pression a base de nitrure de bore cubique Download PDFInfo
- Publication number
- WO2003089172A1 WO2003089172A1 PCT/JP2003/002362 JP0302362W WO03089172A1 WO 2003089172 A1 WO2003089172 A1 WO 2003089172A1 JP 0302362 W JP0302362 W JP 0302362W WO 03089172 A1 WO03089172 A1 WO 03089172A1
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- WIPO (PCT)
- Prior art keywords
- mass
- phase
- forming component
- cutting
- nitride
- Prior art date
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- 238000005520 cutting process Methods 0.000 title claims abstract description 139
- 239000000463 material Substances 0.000 title claims abstract description 39
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 14
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000010936 titanium Substances 0.000 claims abstract description 25
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000004767 nitrides Chemical class 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 8
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 7
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 21
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 6
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 6
- 229910000765 intermetallic Inorganic materials 0.000 claims description 4
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 2
- 150000003609 titanium compounds Chemical class 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 47
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 13
- 238000005245 sintering Methods 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 12
- 238000002156 mixing Methods 0.000 description 12
- 229910000760 Hardened steel Inorganic materials 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 6
- 238000013329 compounding Methods 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 101100202505 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SCM4 gene Proteins 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910004349 Ti-Al Inorganic materials 0.000 description 2
- 229910004692 Ti—Al Inorganic materials 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- AETVBWZVKDOWHH-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(1-ethylazetidin-3-yl)oxypyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)OC1CN(C1)CC AETVBWZVKDOWHH-UHFFFAOYSA-N 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 101100226116 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) esa-1 gene Proteins 0.000 description 1
- ABRVLXLNVJHDRQ-UHFFFAOYSA-N [2-pyridin-3-yl-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound FC(C1=CC(=CC(=N1)C=1C=NC=CC=1)CN)(F)F ABRVLXLNVJHDRQ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/36—Non-oxidic
- C04B2237/361—Boron nitride
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/401—Cermets
Definitions
- Cutting tips made of cubic boron nitride based ultra-high pressure sintered material.
- the present invention provides a cutting tip made of a cubic boron nitride-based ultra-high pressure sintered material that exhibits excellent chipping resistance even when finishing a difficult-to-cut material such as high hardness hardened steel at a high speed. (Hereinafter referred to as c-1 BN-based sintered cutting tip)
- a substantially continuous bonded phase is observed by microscopic observation with a scanning electron microscope. And a hard dispersed phase, and in mass%
- TiN titanium nitride
- TiCN titanium carbonitride
- TiC titanium carbide
- c-BN Cubic boron nitride
- C-BN-based sintered cutting chip made of cubic boron nitride-based ultra-high pressure sintering material (hereinafter referred to as c-BN-based material), which is a sintered compact of a press-formed body having a composition of It is also known that this is used for, for example, surface finishing cutting of various types of steel, such as cycling iron.
- c-BN-based material cubic boron nitride-based ultra-high pressure sintering material
- BN-based sintered cutting inserts and other c- 1 BN-based sintered cutting tips can be used to perform high-speed finishing of difficult-to-cut materials, such as hardened steel.
- the c-BN phase is separated due to insufficient adhesion of the c-BN phase, which is a hard dispersed phase substantially with the TiCN phase constituting This tends to cause chipping (small chipping) on the cutting edge, which results in a relatively short service life. Disclosure of the invention
- the present inventors conducted research to develop a c-BN based sintered cutting tip having excellent chipping resistance, and as a result,
- Ti and A The composite nitride of [1] (hereinafter referred to as (T i, A 1) N) powder and tantalum carbide (hereinafter referred to as WC) powder are used as raw material powders, and these are expressed in mass% (hereinafter,% is mass). ./.)
- T i N, T i CN, and T i C, or T i CN 15 to 56%
- c_BN Remaining (however, containing 35 to 65%),
- N powder and WC powder of these constituents are preferentially c during sintering.
- the reaction product is interposed between the hard dispersed phase composed of the BN phase, and furthermore, the reaction product is mixed with the TiCN phase constituting the continuous bonded phase and the c-BN phase constituting the hard dispersed phase.
- this c_BN-based sintered cutting tip made of c-BN-based material can be used, for example, for finish cutting of difficult-to-cut materials such as hardened hardened steel. Even when used for high-speed cutting, the cutting edge may cause chipping due to insufficient adhesion of the BN phase. There is no occurrence of the ring, we had obtained the results of a study that prolonged connection exhibit excellent cutting performance.
- the present invention has been made based on the results of the above-mentioned research, and it has been found that, by observing the structure with a scanning electron microscope, a substantially continuous bonded phase, a hard dispersed phase, and the continuous bonded phase Shows the three-phase structure of the intermediate cohesive phase interposed between the hard phase and the hard dispersed phase,
- the present invention is characterized by a c-BN base sintered cutting tip having excellent chipping resistance, which is made of a c-BN base material which is a sintered body of a press-formed body having a composition of:
- the mixing ratio is set to 15 to 56%. Desirably, it should be 30 to 50%.
- these components are preferentially aggregated on the surface of the c-BN powder during sintering and react to form a reaction product.
- the reaction product has a property of tightly bonding to both the T i CN phase of the continuous bonded phase and the c-BN phase of the hard dispersed phase, the continuous bonded phase of the c-BN phase Adhesion to the TiCN phase is significantly improved, and as a result, the chipping resistance of the cutting edge is improved.However, even if the mixing ratio of any of these components is out of the above range, Between the hard dispersed phase and the continuous binder phase as an intermediate adhesive phase However, the above-mentioned proportions of (T i, A 1) N and WC are empirically determined in order to ensure strong adhesion. Desirably, each should be 3 to 8%.
- C-BN which constitutes the hard dispersed phase
- the abrasion resistance is improved.However, if the compounding ratio is less than 35%, the desired excellent abrasion resistance is secured. On the other hand, if the mixing ratio exceeds 65%, the sinterability of the c-BN base material itself decreases, and as a result, chipping tends to occur on the cutting edge. It was set at 5 to 65%. Desirably, it should be 45 to 60%.
- the c-BN-based sintered cutting tip of the present invention has a titanium nitride (hereinafter referred to as TiN) layer having a golden color tone on its surface as a discriminating layer before and after the use of the cutting tip. If the average layer thickness is less than 0.5 ⁇ , a golden color tone sufficient for identification cannot be given, whereas the average layer thickness is up to 5. Is sufficient, the average layer thickness should be 0.5 to 5 m. In addition, the present inventors conducted further research in order to develop a c_BN-based sintered cutting tip having excellent chipping resistance.
- TiN titanium nitride
- the raw material is a powder of Ti i AI compound), a powder of a complex nitride of D 1 and 8 I (hereinafter denoted by (T i 'A 1) N), and a powder of tungsten carbide (hereinafter denoted by WC) used as a powder, these, by mass% (hereinafter,% is shows the mass. / 0),
- the Ti-A1 compound powder, the (Ti, A1) N powder, and the WC powder react preferentially during sintering, and the composite coal of Ti, A1, and W Form nitrides (hereinafter referred to as (T i, A 1, W) CN) and aggregate on the surface of c—BN powder Therefore, in the c-BN base material after sintering, the (T i, A 1, W) CN is a hard dispersion composed of c-BN and a continuous binder phase composed of TIN and Z or T i CN.
- T i, A 1, W are the above-mentioned T i N and T i CN which constitute a continuous bonded phase, and the above-mentioned c-BN which constitutes a hard dispersed phase.
- the c-BN-based sintered cutting tip composed of this c-BN-based material is extremely tightly adhered to both of them and acts as an intermediate adhesion phase. The research results show that even when used for high-speed finish cutting of materials, the cutting edge does not generate chipping and exhibits excellent cutting performance over a long period of time.
- the present invention has been made based on the results of the above-described research, and it has been found that, by observing the structure with a scanning electron microscope, a substantially continuous bonded phase, a hard dispersed phase, and a mixture of the continuous bonded phase and the hard dispersed phase are obtained. This shows the three-phase structure of the intermediate adhesive phase interposed between
- the present invention has a feature of a c-BN base sintered cutting tip excellent in chipping resistance, which is made of a c-BN base material having a composition of:
- these components react preferentially during sintering to form (T i, A l, W) CN and aggregate on the c-BN surface, which is a hard dispersed phase.
- the later c-BN base material it is interposed between TiN and TiCN of the continuous bonded phase and c-BN of the hard dispersed phase.
- C-BN which constitutes the hard dispersed phase
- the abrasion resistance is improved.However, if the compounding ratio is less than 35%, the desired excellent abrasion resistance is secured. On the other hand, if the mixing ratio exceeds 55%, the sinterability of the c-BN base material itself decreases, and as a result, chipping easily occurs. %.
- the c-BN-based sintered cutting tip of the present invention has a titanium nitride (hereinafter referred to as TiN) layer having a golden color tone on its surface as a discriminating layer before and after the use of the cutting tip. If the average layer thickness is less than 0.5 ⁇ , it is not possible to give a golden color tone sufficient for identification, while the identification is up to 5 ⁇ . Since the thickness is sufficient, the average layer thickness may be 0.5 to 5 m.
- raw material powders each having a predetermined average particle size in the range of 0.5 to 2 ⁇ m, TiN powder and TiCN powder for forming a continuous bonded phase, further TiC powder, intermediate adhesion WC powder for phase formation, and (T i, esA 1 o. 3 S ) N powder, which is (T i, A 1) N powder, (T i o. SoA 1 o. So) N powder, and (T i o. 35 A 1 .. 65 ) N powder (the numbers in the composition formulas indicate the atomic ratio) and c-BN powder for forming a hard dispersed phase are prepared.
- 5 OmmX Thickness Inserted into a super-high pressure sintering machine in a state of being superimposed on a cemented carbide chip having a dimension of 2 mm (composition: WC-8% Co), 1200-1400 ° C
- a pressure of 5 GPa for 30 minutes at a predetermined temperature within the range described above, grinding the upper and lower surfaces using a diamond grindstone, and adjusting the dimensions with a wire cut by arc discharge.
- the present invention c_BN-based sintered cutting tip (hereinafter, referred to as the present invention cutting tip) 1 to 12 and the comparative c-1 BN-based sintered cutting tip (hereinafter, referred to as the comparative cutting tip) lined with the cemented carbide 1 to 12 were manufactured respectively.
- Each of the comparative cutting inserts 1 to 12 has a compounding composition in which any one of (T i, A 1) N powder and WC powder, which are intermediate adhesion phase forming components, is out of the scope of the present invention. It has.
- the cutting tip 11 of the present invention and the comparative cutting tip 11 were subjected to ultrasonic cleaning in an acetone, dried, and mounted in a normal arc ion plating apparatus, and then subjected to a force source electrode (
- a metal Ti was mounted as an evaporation source, and the inside of the device was first evacuated and heated to 500 ° C with a heater while maintaining a vacuum of 0.5 Pa or less.
- a DC bias voltage of 000 V is applied, while an electric current of 100 A is applied between the metal Ti of the cathode electrode and the anode electrode to generate an arc discharge, thereby cleaning the surface of the cutting tip by Ti bombarding.
- a nitrogen gas was introduced into the apparatus as a reaction gas to form a reaction atmosphere of 5 Pa, and a DC bias voltage of 100 V was applied to the cutting tip, while a cathode electrode and an anode electrode were connected to each other.
- a current of 100 A is passed to generate an arc discharge, and thus, on the surface of the cutting tip 11 of the present invention and the comparative cutting tip 11, both have an average layer thickness of 1.5 ⁇ , A T i ⁇ layer having a golden color tone was formed by vapor deposition.
- the structure of each of the c-BN base materials composing the various cutting inserts obtained as a result was observed using a scanning electron microscope. And a three-phase structure consisting of a hard dispersed phase, and an intermediate adhesive phase interposed between the continuous binder phase and the hard dispersed phase.
- these cutting tips are brazed to the notch step formed at the tip of the cutting edge of the cemented carbide body (composition: WC—10% Co) to obtain JIS ⁇ TNMA 1640
- a cutaway tool with a prescribed shape is used as the cutting tool of the present invention.
- the surface after the above cutting test was observed for the above-mentioned cutting tip surface, on which a TiN layer having a golden color tone was formed by vapor deposition as a discrimination layer before and after the use of the cutting tip.
- the TiN layer at the rake face of the rake face and the flank face and the cutting edge ridge line where the rake face and the flank face intersect with each other, and the worn portion of the TiN layer has a gray color of the cutting tip base.
- the contrast between the golden color of the portion other than the abraded portion of the TiN layer and the gray color of the cutting tip base material could be easily identified before and after use.
- the cutting tips 1 to 12 of the present invention generate chipping on the cutting edge even when turning or surface finishing cutting of carburized hardened steel, which is a difficult-to-cut material. It shows excellent wear resistance and exhibits excellent cutting performance over a long period of time, while Ti, a component that forms an intermediate cohesive phase, as seen in the comparative cutting inserts 1 to 12. Even if the mixing ratio of any one of the A1 compound powder and the WC powder is out of the range of the present invention, chipping occurs on the cutting edge, which may lead to a shorter service life in a relatively short time. it is obvious.
- the c-BN-based sintered cutting tip of the present invention is characterized in that the c-BN phase constituting the hard dispersed phase is converted to the TiCN phase constituting the substantially continuous bonded phase by the interposition of the intermediate adhesive phase. Extremely tightly adhered, and exhibits excellent chipping resistance in high-speed cutting and high-speed surface finishing cutting of difficult-to-cut materials such as hardened steel as described above, as well as cutting under normal conditions. Therefore, it is possible to sufficiently satisfy the high performance and high output of the cutting device, and also to save labor and energy of the cutting process.
- raw material powders each having a predetermined average particle size in the range of 0.5 to 4 m, TiN powder and TiCN powder for forming a continuous bonded phase, and Ti for forming an intermediate adhesive phase.
- one a 1 compound powder, T i 2 a 1 N powder and WC powder, and further providing a c one BN powder as a hard dispersed phase formed are blended raw material powder formulation compositions shown in Table 3, a ball mill After wet-mixing for 72 hours and drying, press molding at a pressure of 100 MPa into a molded body having a diameter of 50 mm ⁇ thickness: 1.5 mm. Pre-sintered at a predetermined temperature within the range of 300 ° C for 1 hour, and then prepared separately.
- c-1 BN-based sintered cutting tip hereinafter, referred to as the present invention cutting tip
- comparison c-1 BN-based sintered cutting tip hereinafter, referred to as the comparative cutting tip
- Comparative cutting tip 1-6 are all T i one A 1 compound powder is an intermediate adhesion phase forming component, T i 2 A 1 N powder, and any proportion of the WC powder of the present invention It has a composition outside the range.
- the cutting tip 8 of the present invention and the comparative cutting tip 6 were ultrasonically cleaned in acetone, dried, and mounted in a normal arc ion plating apparatus, and were subjected to a force source electrode (evaporation source).
- a force source electrode evaporation source
- the inside of the machine was evacuated, and the inside of the machine was heated to 500 ° C with a heater while maintaining a vacuum of 0.5 Pa or less.
- a DC current of 10 OA is applied between the metal Ti of the source electrode and the anode electrode to generate an arc discharge, thereby causing the surface of the cutting tip to be Ti Bombarded.
- each c-BN base material constituting the various cutting tips obtained as a result was observed using a scanning electron microscope.
- a three-phase structure consisting of a hard dispersed phase, and an intermediate adhesive phase interposed between the continuous binder phase and the hard dispersed phase.
- these cutting tips are brazed to the notch step formed at the tip of the cutting edge of the cemented carbide body (composition: WC-10 weight 0 / oCo) to obtain JIS ⁇ TN MA 16 040 8
- Workpiece Carburized and hardened steel (JIS ⁇ SCM415, Hardness: HRC 62) with round shape with four longitudinal grooves
- the surface after the above cutting test was observed for the above-mentioned cutting tip surface, on which a TiN layer having a golden color tone was formed by vapor deposition as a discrimination layer before and after the use of the cutting tip.
- the TiN layer at the rake face of the rake face and the flank face and the cutting edge ridge line where the rake face and the flank face intersect with each other, and the worn portion of the TiN layer has a gray color of the cutting tip base.
- the contrast between the golden color of the portion other than the abraded portion of the TiN layer and the gray color of the cutting tip base material could be easily identified before and after use.
- the cutting tips 1 to 8 of the present invention have excellent wear resistance without chipping on the cutting edge even when high-speed surface finishing cutting of carburized and hardened steel, which is a difficult-to-cut material. indicates sex, superior cutting performance with respect to prolonged connexion exhibit, as seen in comparative cutting inserts.
- T i one a 1 compound powder is an intermediate adhesion phase forming component
- T i 2 It is clear that chipping occurs on the cutting edge even if the mixing ratio of AlN powder or WC powder deviates from the range of the present invention, which leads to a relatively short service life. .
- Table 3 shows, as another example, a cutting insert 9 in which the parts of the continuous bonding phase forming components, TiN and TiCN, were replaced with TaC (tantalum carbide).
- TaC tantalum carbide
- the c-BN-based sintered cutting tip of the present invention has extremely low c-BN constituting the hard disperse phase in T i N and T i CN constituting the continuous bonding phase through the interposition of the intermediate adhesive phase. It adheres firmly and exhibits excellent chipping resistance even in high-speed surface finish cutting of difficult-to-cut materials such as hardened steel as described above, as well as surface finish cutting under normal conditions. Therefore, it is possible to sufficiently satisfactorily cope with higher performance and higher output of the cutting device, as well as labor saving and energy saving of the cutting process.
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Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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KR10-2004-7016416A KR20040101476A (ko) | 2002-04-19 | 2003-02-28 | 입방정 질화붕소기 초고압 소결재료로 만든 절삭 팁 |
DE60333829T DE60333829D1 (de) | 2002-04-19 | 2003-02-28 | Schneidspitze aus ultrahochdruckgesintertem material auf basis kubischen bornitrids |
CN038143224A CN1662334B (zh) | 2002-04-19 | 2003-02-28 | 立方晶氮化硼基超高压烧结材料制切削刀片 |
EP03746884A EP1498199B1 (en) | 2002-04-19 | 2003-02-28 | Cubic boron nitride base ultra-high pressure sintered material cutting tip |
KR1020097017127A KR101121412B1 (ko) | 2002-04-19 | 2003-02-28 | 입방정 질화붕소기 초고압 소결재료로 만든 절삭 팁 |
US10/510,239 US7112235B2 (en) | 2002-04-19 | 2003-02-28 | Cubic boron nitride base ultra-high pressure sintered material cutting tip |
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JP2002117580A JP2003145319A (ja) | 2001-08-29 | 2002-04-19 | 耐チッピング性のすぐれた立方晶窒化ほう素基超高圧焼結材料製切削チップ |
JP2002117578A JP2003176177A (ja) | 2001-10-04 | 2002-04-19 | 耐チッピング性のすぐれた立方晶窒化ほう素基超高圧焼結材料製切削チップ |
JP2002-117578 | 2002-04-19 | ||
JP2002-117580 | 2002-04-19 |
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PCT/JP2003/002362 WO2003089172A1 (fr) | 2002-04-19 | 2003-02-28 | Plaquette de coupe en matiere frittee sous haute pression a base de nitrure de bore cubique |
Country Status (6)
Country | Link |
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US (1) | US7112235B2 (ja) |
EP (1) | EP1498199B1 (ja) |
KR (2) | KR101121412B1 (ja) |
CN (1) | CN1662334B (ja) |
DE (1) | DE60333829D1 (ja) |
WO (1) | WO2003089172A1 (ja) |
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SE530944C2 (sv) * | 2007-04-27 | 2008-10-28 | Sandvik Intellectual Property | Skär |
CN101892412B (zh) * | 2010-06-23 | 2012-05-23 | 郑州博特硬质材料有限公司 | 一种立方氮化硼/碳化钛复合烧结刀具材料及其制备方法 |
US8507082B2 (en) | 2011-03-25 | 2013-08-13 | Kennametal Inc. | CVD coated polycrystalline c-BN cutting tools |
JP5892423B2 (ja) * | 2012-03-08 | 2016-03-23 | 三菱マテリアル株式会社 | 靭性にすぐれたcBN焼結体切削工具 |
CN104321154B (zh) * | 2012-05-31 | 2017-02-22 | 山特维克知识产权股份有限公司 | 制造cbn材料的方法 |
CN103011832B (zh) * | 2012-12-03 | 2016-08-17 | 合肥杰事杰新材料股份有限公司 | 一种立方氮化硼复合材料钳子及其制作方法 |
US9028953B2 (en) | 2013-01-11 | 2015-05-12 | Kennametal Inc. | CVD coated polycrystalline c-BN cutting tools |
JP6343888B2 (ja) * | 2013-08-27 | 2018-06-20 | 三菱マテリアル株式会社 | 耐欠損性にすぐれた立方晶窒化硼素焼結体切削工具 |
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US6265337B1 (en) * | 1998-12-04 | 2001-07-24 | Sumitomo Electric Industries, Ltd. | High strength sintered body |
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JP3637882B2 (ja) * | 2000-08-31 | 2005-04-13 | 住友電気工業株式会社 | 表面被覆窒化硼素焼結体工具 |
US6814775B2 (en) * | 2002-06-26 | 2004-11-09 | Diamond Innovations, Inc. | Sintered compact for use in machining chemically reactive materials |
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2003
- 2003-02-28 WO PCT/JP2003/002362 patent/WO2003089172A1/ja active Application Filing
- 2003-02-28 CN CN038143224A patent/CN1662334B/zh not_active Expired - Lifetime
- 2003-02-28 KR KR1020097017127A patent/KR101121412B1/ko active IP Right Grant
- 2003-02-28 US US10/510,239 patent/US7112235B2/en not_active Expired - Lifetime
- 2003-02-28 KR KR10-2004-7016416A patent/KR20040101476A/ko active Search and Examination
- 2003-02-28 DE DE60333829T patent/DE60333829D1/de not_active Expired - Lifetime
- 2003-02-28 EP EP03746884A patent/EP1498199B1/en not_active Expired - Lifetime
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JPS569279A (en) * | 1979-06-28 | 1981-01-30 | Sumitomo Electric Industries | Sintered body for cutting tool and its manufacture |
JPS56156738A (en) * | 1981-03-16 | 1981-12-03 | Sumitomo Electric Ind Ltd | Sintered body for high hardness tool and its manufacture |
JPS58113348A (ja) * | 1981-12-25 | 1983-07-06 | Mitsubishi Metal Corp | 切削工具用立方晶窒化硼素基超高圧焼結材料 |
JPS58164750A (ja) * | 1982-03-23 | 1983-09-29 | Mitsubishi Metal Corp | 切削工具用超高圧焼結材料 |
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JPS61201751A (ja) * | 1985-03-04 | 1986-09-06 | Nippon Oil & Fats Co Ltd | 高硬度焼結体およびその製造方法 |
JP2001322006A (ja) * | 2000-05-12 | 2001-11-20 | Mitsubishi Materials Corp | 耐摩耗性のすぐれた表面被覆超硬合金製切削工具 |
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See also references of EP1498199A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1805120B1 (en) * | 2004-10-28 | 2016-06-01 | Kyocera Corporation | Cubic boron nitride sintered material and cutting tool using the same |
Also Published As
Publication number | Publication date |
---|---|
US7112235B2 (en) | 2006-09-26 |
EP1498199A4 (en) | 2007-05-02 |
EP1498199B1 (en) | 2010-08-18 |
CN1662334A (zh) | 2005-08-31 |
EP1498199A1 (en) | 2005-01-19 |
DE60333829D1 (de) | 2010-09-30 |
KR20040101476A (ko) | 2004-12-02 |
US20050145066A1 (en) | 2005-07-07 |
CN1662334B (zh) | 2010-09-01 |
KR20090101383A (ko) | 2009-09-25 |
KR101121412B1 (ko) | 2012-03-22 |
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