WO2006043421A1 - 超硬合金 - Google Patents
超硬合金 Download PDFInfo
- Publication number
- WO2006043421A1 WO2006043421A1 PCT/JP2005/018473 JP2005018473W WO2006043421A1 WO 2006043421 A1 WO2006043421 A1 WO 2006043421A1 JP 2005018473 W JP2005018473 W JP 2005018473W WO 2006043421 A1 WO2006043421 A1 WO 2006043421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cemented carbide
- mass
- binder phase
- phase
- tool
- Prior art date
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Classifications
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- 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
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- 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
- C22C29/067—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 comprising a particular metallic binder
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- 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
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- 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
- B22F2998/10—Processes characterised by the sequence of their steps
Definitions
- the present invention relates to a cemented carbide and a cache tool using the cemented carbide.
- the present invention relates to a cemented carbide that can exhibit excellent strength when used as a wear resistant member.
- cemented carbides with an average particle size of 1 ⁇ m or less and WC as a hard phase, V, and so-called fine cemented carbides are known as materials having excellent strength and wear resistance (for example, Patent Document 1).
- Patent Document 1 In order to make WC fine particles in cemented carbide, it is common to use fine particles as the WC raw material powder.
- cemented carbides made from fine WC raw material powders may cause sudden breakage or chipping depending on the use of tools made from these cemented carbides. As a cause of this, it is known that the fracture toughness, which is in a trade-off relationship, is lowered by making the particle size of WC, which is a hard phase, extremely small and improving the hardness.
- Patent Document 1 Japanese Patent Laid-Open No. 61-195951
- Patent Document 2 JP 2001-115229 A
- the inventors of the present invention have studied to refine the alloy structure by using a finer material powder that achieves the above object.
- a cemented carbide having a fine hard phase it is generally considered that the strength (for example, bending strength) improves as the particle size of WC decreases.
- the strength for example, bending strength
- the WC grows on the contrary, resulting in a decrease in strength. Therefore, as a result of repeated studies on various grain growth inhibitors and their combinations and the amount of binder phase to suppress WC grain growth, they have been used as a grain growth inhibitor in the past.
- the present invention provides an average of WC, which is a hard phase. Define the particle size.
- Cr and Ti are contained as elements that promote the refinement of WC, which is a hard phase, and also defines the Ti content, the relationship between Cr and the binder phase, and the binder phase content. To do.
- the cemented carbide of the present invention uses WC having an average particle size of 0.3 ⁇ m or less as a hard phase, 5.5% to 15% by mass of at least one iron group metal element as a binder phase, and Ti. It is characterized by containing 0.005% to 0.06% by mass, containing Cr in a weight ratio of 0.04 to 0.2, and the balance being inevitable impurities.
- the Ta content should be less than 0.005% by mass.
- the cemented carbide of the present invention is a sintered body having WC as a hard phase and an iron group metal element such as Co, Ni, Fe, etc. as a binder phase.
- the average particle size of the hard phase (WC) in the sintered body should be 0.3 m or less. This is because if the average particle diameter of WC exceeds 0.3 m, the hardness (wear resistance) decreases and the strength (bending strength) decreases. A more preferable average particle diameter is 0.1 ⁇ m or less. The lower the average particle diameter of WC, the higher the hardness and strength, so there is no particular lower limit. However, there is a limit when considering the substantial manufacturing process power.
- the average particle diameter of WC is measured by observation with a microscope (for example, SEM (scanning electron microscope) 8000 to 10,000 times).
- a microscope for example, SEM (scanning electron microscope) 8000 to 10,000 times.
- Fullman's formula (dm 4N / ⁇ N dm: average particle size, N: microscope surface In any straight line above!
- N per unit area on the microscope surface
- the measurement length is arbitrary, and finally calculate the particle size per unit length (1 ⁇ m).
- the surface of the cemented carbide is observed with a SEM at a high magnification (for example, 800 to 10,000 times), and the observed image is taken into a computer and analyzed by an image analyzer, and a certain area (for example, 20 to The particle size (m) of WC existing in the range of 30 mm 2 ) may be measured, and the average value of these may be appropriately corrected by the Fullman equation. Since the product of the present invention has a very small particle size of the hard phase in the sintered body, it can be judged that the particle size can be measured sufficiently even if the unit area is as small as 1 ⁇ m 2 .
- the average particle size of WC in the sintered body is ultrafine, such as 0.3 ⁇ m or less.
- an average particle size of 0.3 / zm or less is realized by adding a very small amount of Ti and controlling addition of Cr and not including Ta.
- the cemented carbide of the present invention contains at least one element selected from iron group metals as a binder phase.
- Co may be the preferred binder phase for Co, but some of it may be replaced with Ni!
- the content of the binder phase (the total content when the elements constituting the binder phase are multiple elements) shall be 5.5% to 15% by mass. This is because if it is less than 5.5% by mass, the bending strength will be low even if Ti and Cr described later are contained appropriately. If it exceeds 15% by mass, it is considered that W (tungsten) is dissolved in the binder phase to a large extent due to too much binder phase, causing reprecipitation. For this reason, the effect of reducing the presence of coarse hard phases that are difficult to reduce the frequency of occurrence of coarse hard phases (WC) is small.
- the content of the binder phase is more preferably 7.0% by mass or more and 12.0% by mass or less.
- the cemented carbide of the present invention contains Cr as a grain growth inhibitor that suppresses WC grain growth in the alloy structure.
- the Cr content is set to a specific ratio with respect to the weight (mass%) of the iron group metal element as the binder phase.
- the Cr weight ratio with respect to the binder phase is set to 0.04 or more and 0.2 or less.
- a weight ratio of 0.04 or more is preferable because the effect of suppressing grain growth is increased by the synergistic effect of coexistence with a very small amount of Ti described later.
- the weight ratio is larger than 0.2, the brittle phase (for example, Cr carbide) precipitates in the alloy structure due to too much Cr, and the strength tends to decrease with this precipitate as a starting point.
- the more preferable Cr weight ratio is 0.08 or more and 0.14 or less.
- Ti is said to have little effect on suppressing grain growth, and it was almost impossible to add Ti actively to control the structure in the prior art.
- a very small amount of Ti contributes very much to the suppression of WC grain growth when WC is controlled to ultrafine grains of 0.3 m or less.
- the inventors of the present invention simply control the content of the iron group metal element that becomes the binder phase as described above, which is merely a trace amount of Ti.
- the content of the binder phase is specified together with the content of Ti. If the Ti content is less than 0.005% by mass, the impurity content will be low and the effect of suppressing grain growth will be small. If it exceeds 0.06% by mass, the strength will decrease.
- a particularly preferable Ti content is 0.01% by mass or more and 0.04% by mass or less.
- the WC is uniformly refined and the generation of coarse particles exceeding 2 m is suppressed as much as possible, and an excellent folding resistance is achieved.
- the content of each component can be obtained by analyzing with ICP (inductively coupled plasma emission analysis), for example.
- the Ta content is less than 0.005 mass%.
- Ta is not significantly contained. Therefore, in the present invention, in consideration of the case where Ta is not included, that is, the case where Ta content is most preferably inevitably mixed, 0.003% by mass or less is preferably 0.005% by mass.
- the upper limit Conventionally, Ta has been known as a grain growth inhibitor and has been actively added. As a result of investigations by the present inventors, WC is controlled to ultrafine grains of 0.3 ⁇ m or less. In order to do this, we obtained the knowledge that Ta addition was not desirable.
- Ta-containing double carbide phase ((W, Ta) C) and Ta carbide were generated, and the hard phase could grow greatly. These precipitates containing Ta proved to be difficult to refine by suppressing grain growth even when elements such as Ti and Cr were added. Therefore, in the present invention, Ta is not included.
- V vanadium
- V vanadium
- the ratio (weight ratio) of the weight (mass%) of V to the weight (mass%) of the iron group metal element as the binder phase is 0.01 or more and 0.1 or less. If the weight ratio is 0.0, the stability of the fine grain structure will be insufficient, and the effect of adding V cannot be obtained sufficiently. When the weight ratio is 0. large, the wettability between the hard phase and the binder phase is deteriorated, and the fracture toughness tends to decrease.
- a particularly preferred weight ratio is 0.01 or more and 0.06 or less.
- the cemented carbide of the present invention having ultra fine particles with a WC of 0.3 ⁇ m or less, for example, preparation of material powder ⁇ mixing and grinding of material powder ⁇ press molding ⁇ sintering ⁇ hot Hydrostatic pressure Pressing (HIP).
- material powder it is preferable to use WC powder having ultrafine particles, specifically 0.5 ⁇ m or less, particularly 0.2 ⁇ m or less.
- ultra-fine WC powder can be obtained by adjusting WC to fine and uniform particles by a direct carbonization method in which carbonic acid tungsten is directly carbonized.
- WC particles can be made smaller by mixing and grinding the material powder.
- iron group metal powder as a binder phase
- powder containing Cr, Ti, and V as appropriate to control grain growth.
- Cr, Ti, and V may be added in any form of simple metal, compound, composite compound, and solid solution.
- the compound or composite compound include compounds in which one or more of carbon, nitrogen, oxygen, and boron powers are selected and the above elements Cr, Ti, and V are combined.
- Commercially available powder may be used. These powders premixed may be further mixed and pulverized, or each powder may be prepared separately and mixed during mixing and pulverization.
- the Ti content may be adjusted by measurement. For example, when mixing is performed by a ball mill, the mixing time may be adjusted by using a ball coated with a cocoon film. Good.
- the mixed and pulverized material is press-molded at a predetermined pressure, for example, 500 to 2000 kg / cm 2 and sintered in a vacuum.
- the sintering temperature is preferably a low temperature that suppresses WC grain growth. Specifically, 1 300 to 1350 ° C is preferable.
- HIP is applied after sintering to improve properties such as hardness, bending strength, and toughness.
- the temperature is about the same as the sintering temperature (1300 to 1350 ° C) and the pressure is about 10 to 100 MPa, particularly about 100 MPa (1000 atm).
- the above-mentioned cemented carbide of the present invention is preferably used as a base material material for processing tools such as cutting tools and wear-resistant tools.
- Cutting tools include, for example, rotary tools such as drills, end mills, routers and reamers, rotary tools for printed circuit board forces such as micro drills, turning operations such as aluminum steel, especially finishing power. Turning tools such as throw-away inserts that perform machining. It is also effective in high-precision machining applications such as electrical and electronic equipment that require sharpness.
- the wear resistant tool include a cutting tool such as a rotary knife and a punching tool such as a punching die.
- the processing tool using the cemented carbide of the present invention for the entire base material is rough, not the part of the base material. Reduction of large WC is desired to improve fracture resistance and fracture resistance with few starting points of fracture, and improvement of strength is also desired by uniform refinement of WC over the entire base material. Therefore, good processing performance is demonstrated.
- a micro drill is a tool used for drilling a printed circuit board and the like, and a drill with a minimum diameter of ⁇ 0.1 to 0.3 mm is becoming mainstream. Due to the extremely small diameter, if the alloy structure of the entire base material is not fine and homogeneous, it is likely to break or break starting from the coarse hard phase in the structure. Therefore, when the fine cemented carbide of the present invention is used as a base material of a micro drill, the performance of the cemented carbide of the present invention is utilized, and better cutting performance is expected compared to the conventional one. In addition, since the cemented carbide of the present invention is excellent in strength and toughness as well as wear resistance, drilling is also performed on materials such as stainless steel plates that have been broken by conventional micro drills. Can do. Furthermore, when the cemented carbide of the present invention is used, a very fine drill having a drill diameter of ⁇ 0.05 mm (50 m) can be produced.
- the turning tool using the cemented carbide of the present invention is also desired to have improved chipping resistance by preventing sudden cutting of the cutting edge, and at the same time, improved wear resistance due to higher hardness. Because it is desired, it exhibits excellent cutting performance.
- the cemented carbide of the present invention contains Ti that has been hardly used as a conventional grain growth inhibitor and does not contain Ta, which has been used as a grain growth inhibitor.
- the cemented carbide of the present invention effectively suppresses the grain growth of the hard phase by specifying the Cr content and the Ti content together with the binder phase content, so that the hard phase is uniformly distributed.
- the number of coarse particles can be reduced.
- various machining tools using the cemented carbide of the present invention sudden fractures and defects that occur due to the presence of a coarse hard phase in the alloy structure are suppressed, and the hard phase is uniform.
- the strength can be improved by miniaturization, and both high strength and high toughness are achieved. Therefore, the cemented carbide of the present invention is useful in various cases such as rotary cutting, precision machining, turning, and processing that requires wear resistance.
- Prepared, blended in the addition amount shown in Table 1 (mass% mass%), pulverized and mixed for 48 hours in a ball mill.
- press molding is performed at a pressure of 1000 kg / cm 2 , the temperature is raised to a sintering temperature of 1350 ° C in a vacuum, and the sintering temperature is baked for 1 hour. The conclusion was made.
- HIP treatment was performed under conditions of 1320 ° C., 100 MPa, and 1 hour to prepare cemented carbides of Sample Nos. 1 to 27.
- a 20 mm span JIS test piece, a sample for Vickers hardness Hv evaluation, a sample for tissue observation, and a sample for component measurement were prepared for each sample.
- sample No. 50 samples with the same composition as sample ⁇ .6 but with different WC average particle size (sample No. 50), Co partially substituted with Ni (sample No. 51), pre-mixed I tried to make a material powder (sample No. 52) and a material without HIP (sample No. 53).
- Sample No. 50 consists of a WC raw material powder with an average particle size of 1.0 ⁇ m, a Co raw material powder with an average particle size of 1 ⁇ m, a Cr and Ti compound powder having the composition shown in Table 1, and an appropriate amount of powder C.
- Sample No. 51 was prepared under the same conditions as Sample Nos. 1 to 27 except that Ni raw material powder and Co raw material powder having an average particle diameter of 1 ⁇ m were used.
- Sample No. 52 was prepared under the same conditions as Sample Nos. 1 to 27 except that a material powder having the composition shown in Table 1 was mixed beforehand.
- Each component obtained was analyzed by ICP using a veg component measurement sample to examine the Cr, Ti, Ta, V content, and the weight of the binder phase (Co or Co + Ni).
- the weight ratio of Cr to (mass%) and the weight ratio of V were obtained.
- Table 1 shows the analytical value of Ti, the weight ratio of Cr to Co, and the weight ratio of V to Co. Note that samples that did not contain VC or TaC (“-(hyphen)” is shown in Table 1) and V and Ta were not detected.
- the average particle size (m) of the hard phase (WC) in the alloy was determined according to the Fullman's formula with the microstructure observation power. The observation was performed with SEM (3000 times), and the unit length and unit area were 1 m and 1 m 2 , respectively.
- Vickers hardness ⁇ was measured using a sample for Vickers hardness Hv evaluation.
- an anti-folding test is performed using JIS test specimens. I asked for folding power. In this test, ten specimens were measured for each specimen, and the average value (GPa) of the ten specimens and the lowest value (GPa) of the ten specimens were determined. In the evaluation in this bending stress test, the larger the difference between the average value and the minimum value, the more likely the fracture origin is in the structure where the variation in bending force is large, and there is a coarse hard phase. I praise. These results are shown in Table 2.
- 11,15-18,23-27,51,52 are as fine as WC average particle size force C / zm or less, and show high hardness. It can also be seen that these samples have a high average bending force and a small variation in bending force. Usually, when the particle size of the hard phase is reduced, the hardness is improved, but the bending strength tends to be reduced. However, it can be seen that Samples Nos. 4-7, 10, 11, 15-18, 23- 27, 51, 52 are superior in both hardness and bending strength. In particular, it can be seen that Sample No. 23-27 containing a specific amount of V is superior in bending strength and has high hardness.
- Example 2 Using a raw material powder having the same composition as Sample Nos. 1 to 27 in Example 1, a micro drill having a diameter of 0.3 mm was produced. The microdrill was pulverized and mixed in the same way as in Example 1, dried and granulated, press-formed into a ⁇ 3.5mm round bar, sintered at 1350 ° C, and then subjected to HIP treatment at 1320 ° C. It was made by applying peripheral processing (grooving).
- a drilling test (through hole) was performed with the manufactured micro drill, and cutting evaluation was performed.
- a TNGG 160404R-UM breaker throwaway tip was prepared under the same conditions, a cutting test was performed, and a cutting evaluation was performed. It was.
- the cutting evaluation was performed based on the flank wear amount (V wear amount) after cutting for 15 hours. As a result, specific
- This chip was confirmed to have excellent strength with little wear. This result is presumed to be because the hard phase of these chips is uniformly miniaturized. From this, the cutting tool having the cemented carbide strength of the present invention is excellent in wear resistance and can improve the tool life.
- the cemented carbide of the present invention is suitable for various tool materials that are desired to be excellent in wear resistance, strength, and toughness.
- cutting tools such as rotating tools, rotating tools for processing printed circuit boards, turning tools, cutting tools, and punching tools can be suitably used as wear-resistant tools.
- tools for micromachining such as tools for micromachining of electronic equipment represented by micro drills (micro drills) used for drilling printed circuit boards, etc., and parts machining tools used for micromachine manufacturing. Ideal for materials.
- the machining tool of the present invention can be suitably used for wear-resistant machining.
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05790207.4A EP1803830B1 (en) | 2004-10-19 | 2005-10-05 | Cemented carbides |
US11/568,529 US20080276544A1 (en) | 2004-10-19 | 2005-10-05 | Cemented Carbides |
KR1020067021577A KR101233474B1 (ko) | 2004-10-19 | 2005-10-05 | 초경합금 |
IL178268A IL178268A (en) | 2004-10-19 | 2006-09-21 | Cemented carbides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004304944A JP3762777B1 (ja) | 2004-10-19 | 2004-10-19 | 超硬合金 |
JP2004-304944 | 2004-10-19 |
Publications (1)
Publication Number | Publication Date |
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WO2006043421A1 true WO2006043421A1 (ja) | 2006-04-27 |
Family
ID=36202840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018473 WO2006043421A1 (ja) | 2004-10-19 | 2005-10-05 | 超硬合金 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080276544A1 (ja) |
EP (1) | EP1803830B1 (ja) |
JP (1) | JP3762777B1 (ja) |
KR (1) | KR101233474B1 (ja) |
CN (1) | CN100460546C (ja) |
IL (1) | IL178268A (ja) |
TW (1) | TWI479027B (ja) |
WO (1) | WO2006043421A1 (ja) |
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EP2011890A1 (en) | 2007-06-01 | 2009-01-07 | Sandvik Intellectual Property AB | Fine grained cemented carbide with refined structure |
JP2009024214A (ja) * | 2007-07-19 | 2009-02-05 | Tungaloy Corp | 超硬合金およびその製造方法 |
US7767319B2 (en) | 2006-06-15 | 2010-08-03 | Sandvik Intellectual Property Ab | Insert |
US8283058B2 (en) | 2007-06-01 | 2012-10-09 | Sandvik Intellectual Property Ab | Fine grained cemented carbide cutting tool insert |
US8455116B2 (en) | 2007-06-01 | 2013-06-04 | Sandvik Intellectual Property Ab | Coated cemented carbide cutting tool insert |
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SE530634C2 (sv) * | 2006-06-15 | 2008-07-22 | Sandvik Intellectual Property | Belagt hårdmetallskär, metod att tillverka detta samt dess användning vid torr fräsning av gjutjärn |
SE0701320L (sv) * | 2007-06-01 | 2008-12-02 | Sandvik Intellectual Property | Belagd hårdmetall för formverktygsapplikationer |
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US20220023954A1 (en) * | 2018-12-20 | 2022-01-27 | Ab Sandvik Coromant | Coated cutting tool |
EP3825430A1 (de) * | 2019-11-22 | 2021-05-26 | Ceratizit Luxembourg Sàrl | Wolframkarbid-basierter hartmetallwerkstoff |
US20230037384A1 (en) * | 2019-12-20 | 2023-02-09 | Ab Sandvik Coromant | Cutting tool |
CN113232380B (zh) * | 2021-04-30 | 2023-03-28 | 咸阳职业技术学院 | 一种高强高韧层状互通结构钢结硬质合金及其制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135552A (ja) * | 1983-12-23 | 1985-07-18 | Toshiba Tungaloy Co Ltd | 超微細炭化タングステン基焼結合金 |
JPS61195951A (ja) | 1985-02-26 | 1986-08-30 | Sumitomo Electric Ind Ltd | 高靭性超硬合金 |
JPH01247552A (ja) * | 1988-03-29 | 1989-10-03 | Sumitomo Electric Ind Ltd | 耐高温酸化性硬質合金 |
JPH0598384A (ja) * | 1991-10-08 | 1993-04-20 | Mitsubishi Materials Corp | 高強度および高硬度を有する炭化タングステン基超硬合金 |
EP1034413A1 (de) | 1997-08-11 | 2000-09-13 | Robert Bosch Gmbh | Ellipsometer-messvorrichtung |
JP2001115229A (ja) | 1999-10-18 | 2001-04-24 | Hitachi Tool Engineering Ltd | 強靭性微粒超硬合金 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992005296A1 (en) * | 1990-09-17 | 1992-04-02 | Kennametal Inc. | Cvd and pvd coated cutting tools |
US5585176A (en) * | 1993-11-30 | 1996-12-17 | Kennametal Inc. | Diamond coated tools and wear parts |
JP3402146B2 (ja) * | 1997-09-02 | 2003-04-28 | 三菱マテリアル株式会社 | 硬質被覆層がすぐれた密着性を有する表面被覆超硬合金製エンドミル |
JP3451950B2 (ja) * | 1998-07-21 | 2003-09-29 | 三菱マテリアル株式会社 | 基体が高靭性を有する表面被覆超硬合金製エンドミル |
JP3451949B2 (ja) * | 1998-07-21 | 2003-09-29 | 三菱マテリアル株式会社 | 基体が高靭性を有する表面被覆超硬合金製エンドミル |
SE519315C2 (sv) * | 1999-04-06 | 2003-02-11 | Sandvik Ab | Sätt att tillverka ett hårdmetallpulver med lågt presstryck |
JP2001310212A (ja) * | 2000-04-25 | 2001-11-06 | Mitsubishi Materials Corp | 先端面切刃面および外周刃がすぐれた耐熱塑性変形性を発揮する表面被覆超硬合金製エンドミル |
JP2002239813A (ja) * | 2001-02-20 | 2002-08-28 | Hitachi Tool Engineering Ltd | 被覆超硬合金工具及びその製造方法 |
US7234899B2 (en) * | 2003-05-19 | 2007-06-26 | Tdy Industries, Inc. | Cutting tool having a wiper nose corner |
-
2004
- 2004-10-19 JP JP2004304944A patent/JP3762777B1/ja not_active Expired - Fee Related
-
2005
- 2005-10-05 CN CNB2005800139511A patent/CN100460546C/zh not_active Expired - Fee Related
- 2005-10-05 KR KR1020067021577A patent/KR101233474B1/ko active IP Right Grant
- 2005-10-05 EP EP05790207.4A patent/EP1803830B1/en not_active Not-in-force
- 2005-10-05 US US11/568,529 patent/US20080276544A1/en not_active Abandoned
- 2005-10-05 WO PCT/JP2005/018473 patent/WO2006043421A1/ja active Application Filing
- 2005-10-18 TW TW094136466A patent/TWI479027B/zh not_active IP Right Cessation
-
2006
- 2006-09-21 IL IL178268A patent/IL178268A/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135552A (ja) * | 1983-12-23 | 1985-07-18 | Toshiba Tungaloy Co Ltd | 超微細炭化タングステン基焼結合金 |
JPS61195951A (ja) | 1985-02-26 | 1986-08-30 | Sumitomo Electric Ind Ltd | 高靭性超硬合金 |
JPH01247552A (ja) * | 1988-03-29 | 1989-10-03 | Sumitomo Electric Ind Ltd | 耐高温酸化性硬質合金 |
JPH0598384A (ja) * | 1991-10-08 | 1993-04-20 | Mitsubishi Materials Corp | 高強度および高硬度を有する炭化タングステン基超硬合金 |
EP1034413A1 (de) | 1997-08-11 | 2000-09-13 | Robert Bosch Gmbh | Ellipsometer-messvorrichtung |
JP2001115229A (ja) | 1999-10-18 | 2001-04-24 | Hitachi Tool Engineering Ltd | 強靭性微粒超硬合金 |
Non-Patent Citations (2)
Title |
---|
B. WITTMANN ET AL.: "WC grain growth and grain growth inhibition in nickel and iron binder hardmetals", INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, vol. 20, no. 1, 1 January 2002 (2002-01-01), pages 51 - 60 |
See also references of EP1803830A4 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US7767319B2 (en) | 2006-06-15 | 2010-08-03 | Sandvik Intellectual Property Ab | Insert |
US7976607B2 (en) | 2006-06-15 | 2011-07-12 | Sandvik Intellectual Property Ab | Cemented carbide with refined structure |
EP2011890A1 (en) | 2007-06-01 | 2009-01-07 | Sandvik Intellectual Property AB | Fine grained cemented carbide with refined structure |
EP2287355A1 (en) | 2007-06-01 | 2011-02-23 | Sandvik Intellectual Property AB | Fine grained cemented carbide with refined structure |
US7938878B2 (en) | 2007-06-01 | 2011-05-10 | Sandvik Intellectual Property Ab | Fine grained cemented carbide with refined structure |
US8283058B2 (en) | 2007-06-01 | 2012-10-09 | Sandvik Intellectual Property Ab | Fine grained cemented carbide cutting tool insert |
US8455116B2 (en) | 2007-06-01 | 2013-06-04 | Sandvik Intellectual Property Ab | Coated cemented carbide cutting tool insert |
US9005329B2 (en) | 2007-06-01 | 2015-04-14 | Sandvik Intellectual Property Ab | Fine grained cemented carbide with refined structure |
JP2009024214A (ja) * | 2007-07-19 | 2009-02-05 | Tungaloy Corp | 超硬合金およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
TW200626731A (en) | 2006-08-01 |
EP1803830A4 (en) | 2009-12-09 |
TWI479027B (zh) | 2015-04-01 |
CN100460546C (zh) | 2009-02-11 |
IL178268A0 (en) | 2006-12-31 |
KR20070060047A (ko) | 2007-06-12 |
JP3762777B1 (ja) | 2006-04-05 |
CN1950529A (zh) | 2007-04-18 |
IL178268A (en) | 2010-12-30 |
US20080276544A1 (en) | 2008-11-13 |
EP1803830B1 (en) | 2016-05-18 |
KR101233474B1 (ko) | 2013-02-14 |
JP2006117974A (ja) | 2006-05-11 |
EP1803830A1 (en) | 2007-07-04 |
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