WO2007111293A1 - 切削工具およびその製造方法 - Google Patents
切削工具およびその製造方法 Download PDFInfo
- Publication number
- WO2007111293A1 WO2007111293A1 PCT/JP2007/056185 JP2007056185W WO2007111293A1 WO 2007111293 A1 WO2007111293 A1 WO 2007111293A1 JP 2007056185 W JP2007056185 W JP 2007056185W WO 2007111293 A1 WO2007111293 A1 WO 2007111293A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- cutting tool
- cutting
- coating layer
- thickness
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/08—Aluminium nitride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/24—Titanium aluminium nitride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/36—Titanium nitride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/10—Coatings
- B23B2228/105—Coatings with specified thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Definitions
- the present invention relates to a cutting tool and a manufacturing method thereof, and more particularly, to a cutting tool suitable for use in high-speed cutting of high hardness steel materials and a manufacturing method thereof.
- a cemented carbide such as tungsten carbide or a cermet such as titanium carbonitride has been used and the surface thereof has been coated.
- Patent Document 1 discloses that “a carbide layer of Ti, nitride formed on the surface of a tool base made of tungsten carbide-based cemented carbide or titanium carbonitride-based cermet, Layer, carbonitride layer, carbonate layer, and carbonitride oxide layer composed of one or two or more Ti compound layers, and has an average layer thickness of 3 to 20 ⁇ m
- B Heat-transformed aluminum oxide having a c-type or ⁇ -type crystal structure in the vapor-deposited state to convert the crystal structure to an ⁇ - type crystal structure, and the heat-transformation cracks are dispersed
- An upper layer composed of a heat-transformed model aluminum oxide layer having a distributed structure and having an average layer thickness of 3 to: 15 ⁇ m, (c) vapor deposition with a c-type crystal structure in the deposited state / c Type aluminum oxide layer and has an average layer thickness of 0.5-2 xm
- a surface-coated cermet cutting tool having excellent thermal shock resistance with a hard coating
- Patent Document 2 states that “a carbide layer, nitride layer of Ti, (a) deposited on the surface of a tool base made of tungsten carbide-based cemented carbide or titanium carbonitride-based cermet, Lamination of one or more of carbonitride, carbonate, and carbonitride layers (B) An aluminum oxide having a ⁇ -type crystal structure is subjected to a heat transformation treatment in a lower layer made of a Ti compound layer having an average layer thickness of 3 to 20 ⁇ , And a lower layer of the heat-transformed diamond aluminum oxide layer having a structure in which the transformation cracks generated by the heat transformation treatment are dispersed and having an average layer thickness of 3 to 15 am.
- Patent Document 3 states that “a carbide layer, nitride layer, Ti carbide layer formed by chemical vapor deposition on the surface of a tool base composed of tungsten carbide-based cemented carbide or titanium carbonitride-based cermet, A lower layer composed of one or more of a carbonitride layer, a carbonate layer, and a carbonitride layer, and a Ti compound layer having a total average layer thickness of 3 to 20 ⁇ m (B) A structure in which aluminum oxide having a ⁇ -type crystal structure is subjected to heat treatment in a state where chemical vapor deposition is formed to transform into an ⁇ -type crystal structure, and the transformed cracks generated by the heat treatment are dispersed and distributed. And:!
- Patent Document 4 states that “a surface of a cermet substrate made of a tungsten carbide-based cemented carbide or a titanium carbonitride-based cermet has (a) an oxide having an average layer thickness of 0.2 to 3 xm as an upper layer.
- a surface coating formed by vapor deposition is used as a cermet cutting tool, and in the lower layer, the A1 highest content point and the A1 lowest content point are alternately present at predetermined intervals along the layer thickness direction, and From A1 highest content point to A1 lowest content point, from A1 lowest content point to A1 highest content point A1 and Ti
- each component has a component concentration distribution structure in which the content of each of the components continuously changes, and the above-mentioned A 1 minimum content point is the composition formula: (Al Ti) N (where X is 0.35 in terms of atomic ratio)
- the interval between the adjacent A1 lowest content point and A1 highest content point adjacent to each other is 0.01 to 0.1 lxm, and is composed of a composite nitride layer of A1 and Ti.
- This is a cutting tool made of surface-coated cermet that exhibits excellent wear resistance with a hard coating layer in high-speed cutting. Is proposed.
- Patent Document 5 states that "a diamond-coated hard member having a diamond and / or diamond-like carbon film coated on a substrate, and an average surface roughness of the substrate adjacent to the film. Is adjusted to 0.1 lxm to 2.5 ⁇ m in the Ra display, and the average surface roughness of the coating is adjusted to 1.5 xm or less in the Ra display, and the average surface roughness of the coating is Is expressed as Ra (c), and when the average surface roughness of the substrate is expressed as Ra (s), the surface roughness is adjusted to be Ra (c) ⁇ Ra (s) A diamond-coated hard member has been proposed.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-188502
- Patent Document 2 JP 2004-188500 A
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-188575
- Patent Document 4 Japanese Patent Laid-Open No. 2004-351540
- Patent Document 5 JP-A-10-287491
- the surface-covered cermet cutting tools proposed in Patent Documents 1 to 3 described above can be improved in chipping resistance by providing a coating layer having a specific chemical composition.
- these cutting tools have improved heat resistance, if the film is peeled off due to mechanical factors such as impact during cutting, the performance deteriorates as soon as possible. Also, the thickness of the coating layer is not specified for each part, and the heat resistance effect may be insufficient.
- the surface-coated cermet cutting tool proposed in Patent Document 4 has an acid surface on the outermost surface.
- Force with aluminum oxide layer Aluminum oxide has a fatal defect such as a significant deterioration of the adhesion at the film interface in a high temperature range of 800 ° C or higher where the coefficient of linear thermal expansion is large. If the film interface temperature rises during high-temperature cutting or high-speed cutting, sufficient adhesion is not guaranteed, resulting in problems such as rapid deterioration of wear resistance and inability to maintain the cutting function.
- Patent Document 5 states that the surface roughness can be adjusted so that diamond nuclei can be formed easily and in large quantities when a coating film is formed on the surface of the substrate. The advantages are that it can be used and the film quality is excellent.
- the present inventors' research has revealed that the cutting life of cutting tools used for high-speed cutting of high-hardness steel materials cannot be explained simply by adjusting the surface roughness. did.
- the present inventors have intensively studied and completed a cutting tool having a coating layer excellent in thermal shock resistance and peel strength both physically and chemically.
- the present inventors have also intensively studied the pretreatment applied to the tool base material (metal sintered body) before forming the coating layer, and completed a cutting tool with further improved cutting life.
- An object of this invention is to provide the cutting tool which has the outstanding tool life.
- the gist of the present invention is a cutting tool shown in the following (1) and a manufacturing method of the cutting tool shown in the following (2).
- the cutting tool described above is preferably one in which a coating layer is formed on the tool base material after surface cleaning and surface shape processing by soft particle injection. Also, turn off It is desirable that the total thickness of the coating layer on the flank face of the cutting tool is 2 to 80 ⁇ m. Further, the thickness of the foundation layer, intermediate layer and outermost layer on the flank face is 0 ⁇ 5 to 3 5 / im, 1 ⁇ 0 to 40 111 jovi 0.5 to 5 ⁇ m force S is desirable. It is desirable that the total thickness of the coating layer on the rake face is 2 to 40 xm. In addition, the thicknesses of the foundation layer, intermediate layer and outermost layer on the rake face are:! To 20 zm, respectively. A:! ⁇ 20 zm and 0.01-2 xm are desirable.
- a feature is that a tool base material composed of a super hard material is subjected to surface cleaning and surface shape processing by jetting soft particles, and then a coating layer is formed by a dry coating method. A method for manufacturing a cutting tool.
- A1 in the base layer dissociates and diffuses outward during cutting to form A10 near the surface of the coating layer, thereby supplementing the outermost layer. Therefore, stable and excellent heat resistance
- the adhesion between the tool base material (metal sintered body) and the coating layer can be improved, so that a cutting tool having a longer tool life can be provided. it can.
- FIG. 1 is a schematic diagram showing an example of a cutting tool according to the present invention.
- the cutting tool 1 according to the present invention moves relatively to the left in FIG. 1 (a) to cut the surface of the workpiece 2.
- Cutting tools include the power of these turning tools, turning tools, and drilling tools.
- the flank is a surface that mainly contacts the workpiece in the cutting tool, and is, for example, the surface 3 in the turning tool shown in FIG. 1 (b).
- the rake face is a face that scoops up the chips of the workpiece, and is, for example, face 4 in the turning tool shown in FIG. 1 (b).
- the cutting tool of the present invention is formed by forming the following three coating layers on a tool base material composed of a super hard material.
- the cemented carbide material constituting the tool base material is not particularly limited, but cemented carbide represented by WC-TiC-5% Co, TiC_ 20% TiN_ 15% WC_ 10% Mo C_ 5% Ni The cermet etc. which are represented by. Among these, it is desirable to use cemented carbide from the viewpoint of thermal conductivity and from the viewpoint of alleviating interfacial thermal stress with the coating layer during cutting.
- the coating layer includes an underlayer composed of AlTiN, an intermediate layer composed of TiN, and A1
- the outermost layer force composed of O.
- AlTiN constituting the underlayer is excellent in heat resistance and wear resistance, and these performances are stable up to 1000 ° C, and also have excellent adhesion to the substrate.
- the temperature rise during cutting dissociates A1 in the underlayer, diffuses outward, reacts with oxygen in the outside air, and forms a protective film composed of Al 2 O on the surface layer (outermost layer) of the coating. Form. Therefore,
- the stratum was composed of AlTiN.
- the underlayer is mainly composed of AlTiN and may contain some impurities.
- the oxidation temperature of TiN constituting the intermediate layer is as low as 700 ° C, it is originally a material suitable for cutting at a low speed or medium speed with relatively little heat generation. However, since it is excellent in adhesion and effective for mechanical delamination, it was designed as an intermediate layer.
- the intermediate layer is mainly TiN and may contain some impurities.
- Al O which constitutes the outermost layer, is weak against mechanical peeling, but has excellent heat resistance and wear resistance.
- the outermost layer is composed of Al 2 O
- the outermost layer is mainly composed of Al 2 O and may contain some impurities.
- the outermost layer is made of a material having the highest heat resistance and wear resistance
- the intermediate layer is made of a material having the best adhesion
- the underlayer is made of a material that has excellent adhesion, heat resistance, and wear resistance to some extent, and the strength of A1 is dissociated and outwardly diffused by heat during cutting. For this reason, even if the outermost layer and the intermediate layer are peeled off, A1 which has also dissociated the underlying layer force reacts with oxygen on the surface layer of the coating to supplement the protective film of the outermost layer. Wear resistance is obtained.
- the thickness of the coating layer on the flank Cutting tool of the present invention is preferably a total thickness force 3 ⁇ 4 ⁇ 80 ⁇ m of the coating layer on the flank face.
- the flank face is the part where the most load is applied during cutting and the heat generation is large, so the coating layer on the flank face should be as thick as possible.
- the flank coating layer preferably has a total thickness of 2 zm or more.
- the total thickness of the coating layer on the flank surface exceeds 80 x m, it becomes easy to peel off and weakens against mechanical shock.
- the time required for film formation becomes longer.
- the total thickness of the flank coating layer is preferably 2 to 80 zm.
- the thickness of the underlying layer (AlTiN) on the flank surface is less than 0.5 ⁇ m, sufficient heat resistance may not be obtained. However, if the thickness of the underlayer ( ⁇ ) on the flank surface exceeds 35 zm, it will be easy to peel off and only the time required for film formation will be increased. Therefore, it is desirable that the thickness of the underlayer (AlTiN) on the flank is 0.5 to 35 ⁇ .
- the thickness of the intermediate layer (TiN) on the flank face is less than 1. 0 ⁇ m, the heat resistance is insufficient and Do Ruosore.
- the thickness of the intermediate layer (TiN) on the flank surface exceeds 40 / im, it becomes easy to peel off and only the time required for film formation is increased. Therefore, the thickness of the intermediate layer (TiN) on the flank is desirably 1.0 to 40 / im.
- the thickness of the outermost layer (Al 2 O 3) on the flank is 0.5 / i in order to obtain sufficient heat resistance.
- the thickness of the outermost layer (Al 2 O 3) on the flank face is 50 ⁇
- the thickness of the outermost layer (A10) on the flank is 0.5 to 5 x m.
- the total thickness of the coating layer on the rake face is 2 to 40 ⁇ m.
- the rake face generates less heat during cutting, but the surface roughness should be smaller because it is where the chips come into contact after cutting. For this reason, the coating layer should be as thin as possible.
- the coating layer on the rake face should have a total thickness of 40 zm or less. That's right. However, if the total thickness of the coating layer on the rake face is less than 2 / m, sufficient wear resistance may not be obtained because it wears quickly during cutting. For this reason, the total thickness of the coating layer on the rake face is desirably 2 to 40 ⁇ m.
- the thickness of the underlying layer (AlTiN) on the rake face is less than 1 ⁇ m, sufficient heat resistance and adhesion may not be obtained. However, if the thickness of the underlying layer (AlTiN) on the rake face exceeds 20 x m, it will be easy to peel off, and it will take a long time to form a film. Therefore, it is desirable that the thickness of the underlayer (AlTiN) on the rake face is:! ⁇ 20 ⁇ .
- the thickness of the intermediate layer (TiN) on the rake face is less than 1 ⁇ m, sufficient heat resistance and adhesion may not be obtained. However, if the thickness force S20 / m of the intermediate layer (TiN) on the rake face is exceeded, it will be easy to peel off, and it will take a long time for film formation. Therefore, the thickness of the intermediate layer (TiN) on the rake face is desirably:! -20 ⁇ m.
- the thickness of the outermost layer (A10) on the rake face is 0 ⁇ 01 to 2 / m
- the manufacturing method of the cemented carbide or cermet as the tool base material is not particularly limited.
- the raw metal powders are sized and mixed, they are pressure-molded and punched with a mold having a predetermined shape.
- the obtained molded product can be produced by firing in a vacuum.
- the coating layer manufacturing method is not limited, but for example, physical vapor deposition methods (PVD methods) represented by sputtering, arc ion plating methods, etc., or chemicals represented by thermal CVD methods and plasma CVD methods. Vapor deposition (CVD) can be used. Physical vapor deposition A specific description will be given below, taking the case of law as an example.
- PVD methods physical vapor deposition methods
- CVD chemical vapor deposition
- a mixed powder of metal elements constituting the coating layer is pressed into a predetermined disk shape, vacuum-sintered, and then used as a target, by physical vapor deposition (PVD) such as sputtering, and the target components Is electrically excited in the gas phase.
- PVD physical vapor deposition
- the gas phase of the apparatus is filled with nitrogen gas or the like, and chemically bonded on the surface of the film body with the target component excited in the gas phase.
- a predetermined coating component is deposited on the surface of the film body, and when this is heat-treated, the deposited component becomes a chemically stable composition, and can be formed by a method that adheres to the film body and forms the desired coating layer.
- the underlayer (AlTiN) of the coating layer can be formed by the following method. That is, for example, a mixed powder made from A1 and Ti powders as a raw material is pressed into a predetermined shape, vacuum-sintered, used as a target, filled with nitrogen gas in a PVD device, and discharge-excited gold It can be formed by reacting a genus component with nitrogen.
- the intermediate layer (TiN) of the coating layer may be Ti powder instead of the above mixed powder, and Ti and nitrogen may be reacted with the PVD device filled with nitrogen gas.
- the outermost layer (Al 2 O 3) of the coating layer uses A1 powder, and the PVD device is filled with oxygen gas and A1 and acid
- the tool base material is previously subjected to surface cleaning and surface shape processing by soft particle injection (hereinafter referred to as a vapor-phase injection lapping method), and then a coating layer is formed. It is desirable to form.
- the vapor-phase jet lapping method is a method in which soft particles are jetted and collided with the material to be polished at a high speed, the surface of the material to be polished is cleaned, and the surface shape is mirror-finished in the submicron range. .
- the normal lapping process is a process that is performed while the upper and lower surfaces of the material to be polished are sandwiched between flat plates and rotated. At this time, alumina having a particle size of the order of submicron is used as an abrasive. Alternatively, a glass dispersion of an aqueous dispersion is poured into the sliding interface, which is a wet process. Since such a lapping process is limited to the lapping of a planar body, the rubbing of the R portion, the inclined portion, etc. is difficult in terms of structure. From these viewpoints, the present inventors have focused on the vapor-phase injection wrapping method that can wrap the R region and the inclined region.
- the vapor-phase injection lapping can adjust the tool base material surface roughness uniformly and improve the adhesion to the coating layer.
- impurities on the tool base surface that cannot be removed by normal wet cleaning can be physically removed.
- the vapor-phase injection lapping method can increase the adhesion between the tool base material and the coating layer, which cannot be explained only by the surface roughness, and dramatically increases the tool life. It can be improved.
- Soft particles are particulate abrasives in which abrasive particles having a diameter of micrometer are used as a core material, and the periphery of the core material is covered with a polymer resin.
- abrasive grains one or more of diamond, silicon carbide, and alumina can be used.
- the grain size of the abrasive grains is preferably 3000 to 10,000.
- the polymer resin is not particularly limited, but gelatin having desired elasticity and tackiness can be used by containing water. When gelatin is used, the soft particles should have a diameter of 0 ⁇ :! ⁇ 2mm.
- the multi-liquid can contain water-soluble oil as an evaporation preventing material.
- the evaporation inhibitor for example, ethylene glycol, sorbitol and the like can be used.
- each metal powder used as a raw material for the tool base material is first sized and mixed, and then pressed and punched with a mold having a predetermined shape. ° CX baked for 1.0 hour to prepare a tool base material.
- the cutting tool of Example 1 of the present invention was manufactured as follows.
- the tool base material is placed in the PVD device, and the mixed metal of A1 and Ti is filled with nitrogen gas to react each metal excited with discharge and nitrogen, and the tool base material is composed of AlTiN.
- An underlayer was formed.
- the Ti target is discharged and excited in a nitrogen gas atmosphere, the intermediate layer composed of TiN is further excited, and the A1 target is discharged and excited in an oxygen gas atmosphere.
- An outermost layer composed of Al 2 O was formed.
- each flank and rake face of each layer is such that the magnetic lines of force formed between the counter electrodes of the target / coating substrate are distorted by a non-equilibrium electric field, and the film of the coating is attached to the film. It was adjusted by intentionally changing the sex.
- the cutting tool of Comparative Example 1 is similarly composed of an underlayer composed of TiCN and AlO on the surface of the tool base material by using a PVD apparatus, adjusting the target and the atmosphere gas.
- An outermost layer composed of an intermediate layer and TiN was formed.
- the cutting tool produced in this way was analyzed for surface roughness, coefficient of friction, and adhesion, and a 5% Ni-containing alloy (S13Cr) with an outer diameter of 85mm x length of 500mm was applied at 800 ° C. Comparison of tool life when cutting at a cutting speed of 70mZmin at the above temperature
- the surface roughness was determined by scanning an arbitrary surface after film formation with a stylus (diamond needle; outer diameter 25 ⁇ m) with a length of 1 Omm, and calculating the “arithmetic mean roughness” defined in JIS standard B0601-1994. Ra was measured
- the coefficient of friction was measured using a Bowden-type sliding tester under a sliding condition of a load of 5 N, room temperature, speed of 4 mm / second, steel ball: 5 mm in diameter made of SUS.
- the cutting life means the number of pieces that can be cut before reaching any one of the following conditions (1) to (3).
- Example 1 of the present invention As shown in Table 1, in Comparative Example 1, the adhesion was kept low, so the number of cutting lives was 58. On the other hand, in Example 1 of the present invention, as a result of improving the adhesion, the number of cutting lives was 195, and the cutting life was remarkably improved.
- a tool in which a coating layer was formed without any treatment on the base material (Example 2 of the invention) and a tool in which a coating layer was formed after subjecting the base material to a lapping process by a vapor-phase injection wrapping method (this example) Invention Example 3) was prepared.
- the lapping process by the vapor-phase injection lapping method was performed using an abrasive having a particle diameter of 0.5 to 2.0 mm formed by combining 3000 mesh diamond abrasive grains with a polymer polymer.
- Each tool base material is placed in a PVD device, and a mixed sintered body of A1 and Ti is used as a target. Nitrogen gas filling is performed to react each discharge excited metal with nitrogen, and the tool base material is composed of AlTiN. An underlayer to be formed was formed. Then, in the PVD system, the Ti target is discharged and excited by nitrogen gas atmosphere, the intermediate layer composed of TiN is further excited, and the A1 target is discharged and excited in an oxygen gas atmosphere, and composed of Al 2 O 3. The outermost layer is formed to
- the cutting life of each cutting tool produced in this way was investigated.
- the cutting life was measured using a 5% Ni-containing alloy (S13Cr steel) with an outer diameter of 139.7 mm and a length of 11000 mm using a screw cutting chaser manufactured by the above method at a temperature of 800 ° C or higher.
- VAM—TOP outer diameter thread cutting was performed at a cutting speed of 90 m / min using a cutting machine, and the tool life at that time was adjusted.
- the cutting life means the number of pieces that can be cut up to any of the above conditions (1) to (3). Based on this criterion, the average value and standard deviation of the cutting life of the four cutting machines were obtained.
- A1 in the underlayer dissociates during the cutting and diffuses outward to form Al 2 O near the surface of the coating layer, thereby supplementing the outermost layer. Therefore, stable and excellent heat resistance and
- Abrasion resistance can be obtained, and a cutting tool with a long tool life can be provided. Further, according to a desirable aspect of the present invention in which the vapor phase injection lapping method is performed, the adhesion between the tool base material and the coating layer can be improved, so that it is possible to provide a cutting tool having a longer tool life. it can.
- This cutting tool is particularly useful for thread cutting chesers that are used in severe cutting conditions such as thread cutting of high-hardness steel materials.
- FIG. 1 is a schematic diagram showing an example of a cutting tool according to the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0710255A BRPI0710255B1 (pt) | 2006-03-28 | 2007-03-26 | ferramenta de corte e método de produção da mesma |
EP07739623A EP2000236A4 (en) | 2006-03-28 | 2007-03-26 | CUTTING TOOL AND MANUFACTURING METHOD THEREFOR |
MX2008012236A MX2008012236A (es) | 2006-03-28 | 2007-03-26 | Herramienta cortante y método para producir la misma. |
IL194149A IL194149A (en) | 2006-03-28 | 2008-09-16 | Cutting device and method of production |
US12/232,924 US7704593B2 (en) | 2006-03-28 | 2008-09-26 | Cutting tool and method of producing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-086773 | 2006-03-28 | ||
JP2006086773A JP2007260806A (ja) | 2006-03-28 | 2006-03-28 | 切削工具 |
JP2006097318A JP5053561B2 (ja) | 2006-03-31 | 2006-03-31 | 切削工具およびその製造方法 |
JP2006-097318 | 2006-03-31 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/232,924 Continuation US7704593B2 (en) | 2006-03-28 | 2008-09-26 | Cutting tool and method of producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007111293A1 true WO2007111293A1 (ja) | 2007-10-04 |
Family
ID=38541210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/056185 WO2007111293A1 (ja) | 2006-03-28 | 2007-03-26 | 切削工具およびその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7704593B2 (ja) |
EP (1) | EP2000236A4 (ja) |
BR (1) | BRPI0710255B1 (ja) |
IL (1) | IL194149A (ja) |
MX (1) | MX2008012236A (ja) |
WO (1) | WO2007111293A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10745795B2 (en) * | 2008-04-29 | 2020-08-18 | Agency For Science, Technology And Research | Inorganic graded barrier film and methods for their manufacture |
US8277958B2 (en) * | 2009-10-02 | 2012-10-02 | Kennametal Inc. | Aluminum titanium nitride coating and method of making same |
US8409702B2 (en) | 2011-02-07 | 2013-04-02 | Kennametal Inc. | Cubic aluminum titanium nitride coating and method of making same |
AT510713B1 (de) * | 2011-03-18 | 2012-06-15 | Boehlerit Gmbh & Co Kg | Schneidwerkzeug oder schneideinsatz hierfür sowie verwendung dieser |
US9103036B2 (en) | 2013-03-15 | 2015-08-11 | Kennametal Inc. | Hard coatings comprising cubic phase forming compositions |
US9896767B2 (en) | 2013-08-16 | 2018-02-20 | Kennametal Inc | Low stress hard coatings and applications thereof |
US9168664B2 (en) | 2013-08-16 | 2015-10-27 | Kennametal Inc. | Low stress hard coatings and applications thereof |
JP6569376B2 (ja) * | 2015-08-13 | 2019-09-04 | 日本製鉄株式会社 | 超硬工具及びその製造方法 |
WO2020213259A1 (ja) * | 2019-04-17 | 2020-10-22 | 住友電工ハードメタル株式会社 | 切削工具 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03146677A (ja) * | 1989-10-30 | 1991-06-21 | Toshiba Tungaloy Co Ltd | 断続切削用被覆超硬合金 |
JPH09192906A (ja) * | 1995-12-12 | 1997-07-29 | Kennametal Inc | コーティングされた切削工具 |
JPH10287491A (ja) | 1997-04-10 | 1998-10-27 | Toshiba Tungaloy Co Ltd | 表面粗さを調整したダイヤモンド被覆硬質部材 |
JP2001031949A (ja) * | 1999-07-22 | 2001-02-06 | Sumitomo Bakelite Co Ltd | 弾性材被覆研磨材 |
JP2003311505A (ja) * | 2003-03-28 | 2003-11-05 | Ngk Spark Plug Co Ltd | サーメット工具及びサーメット工具の摩耗識別方法 |
JP2004124246A (ja) * | 2002-08-08 | 2004-04-22 | Kobe Steel Ltd | 耐摩耗性および耐熱性に優れた積層皮膜およびその製造方法、並びに耐摩耗性および耐熱性に優れた積層皮膜被覆工具 |
JP2004188500A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004188575A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004188502A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004351540A (ja) | 2003-05-28 | 2004-12-16 | Mitsubishi Materials Kobe Tools Corp | 高速切削加工で硬質被覆層がすぐれた耐摩耗性を発揮する表面被覆サーメット製切削工具 |
JP2005138209A (ja) * | 2003-11-05 | 2005-06-02 | Sumitomo Electric Hardmetal Corp | 耐摩耗性部材 |
JP2005271153A (ja) * | 2004-03-25 | 2005-10-06 | Tdk Corp | 膜除去用粒子 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5722803A (en) * | 1995-07-14 | 1998-03-03 | Kennametal Inc. | Cutting tool and method of making the cutting tool |
JP3418336B2 (ja) * | 1998-03-31 | 2003-06-23 | 日本特殊陶業株式会社 | サーメット工具 |
JP3343727B2 (ja) * | 1999-05-19 | 2002-11-11 | 日立ツール株式会社 | 硬質皮膜被覆工具 |
US6733874B2 (en) * | 2001-08-31 | 2004-05-11 | Mitsubishi Materials Corporation | Surface-coated carbide alloy cutting tool |
KR20040073570A (ko) | 2002-01-18 | 2004-08-19 | 스미토모덴키고교가부시키가이샤 | 표면 피복 절삭 공구 |
US6660133B2 (en) * | 2002-03-14 | 2003-12-09 | Kennametal Inc. | Nanolayered coated cutting tool and method for making the same |
EP2848712B1 (en) * | 2002-08-08 | 2018-05-30 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Process for producing alumina coating composed mainly of alpha-type crystal structure, alumina coating composed mainly of alpha-type crystal structure, laminate coating including the alumina coating , member clad with the alumina coating or laminate coating, process for producing the member, and physical vapor deposition apparatus |
JP4205546B2 (ja) * | 2003-09-16 | 2009-01-07 | 株式会社神戸製鋼所 | 耐摩耗性、耐熱性および基材との密着性に優れた積層皮膜の製造方法 |
JP2006028600A (ja) * | 2004-07-16 | 2006-02-02 | Kobe Steel Ltd | 耐摩耗性と耐熱性に優れた積層皮膜 |
SE528380C2 (sv) * | 2004-11-08 | 2006-10-31 | Sandvik Intellectual Property | Belagt skär för torrfräsning, sätt och användning av detsamma |
-
2007
- 2007-03-26 MX MX2008012236A patent/MX2008012236A/es unknown
- 2007-03-26 WO PCT/JP2007/056185 patent/WO2007111293A1/ja active Application Filing
- 2007-03-26 BR BRPI0710255A patent/BRPI0710255B1/pt not_active IP Right Cessation
- 2007-03-26 EP EP07739623A patent/EP2000236A4/en not_active Withdrawn
-
2008
- 2008-09-16 IL IL194149A patent/IL194149A/en not_active IP Right Cessation
- 2008-09-26 US US12/232,924 patent/US7704593B2/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03146677A (ja) * | 1989-10-30 | 1991-06-21 | Toshiba Tungaloy Co Ltd | 断続切削用被覆超硬合金 |
JPH09192906A (ja) * | 1995-12-12 | 1997-07-29 | Kennametal Inc | コーティングされた切削工具 |
JPH10287491A (ja) | 1997-04-10 | 1998-10-27 | Toshiba Tungaloy Co Ltd | 表面粗さを調整したダイヤモンド被覆硬質部材 |
JP2001031949A (ja) * | 1999-07-22 | 2001-02-06 | Sumitomo Bakelite Co Ltd | 弾性材被覆研磨材 |
JP2004188500A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004188575A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004188502A (ja) | 2002-06-28 | 2004-07-08 | Mitsubishi Materials Corp | 硬質被覆層がすぐれた耐熱衝撃性を有する表面被覆サーメット製切削工具 |
JP2004124246A (ja) * | 2002-08-08 | 2004-04-22 | Kobe Steel Ltd | 耐摩耗性および耐熱性に優れた積層皮膜およびその製造方法、並びに耐摩耗性および耐熱性に優れた積層皮膜被覆工具 |
JP2003311505A (ja) * | 2003-03-28 | 2003-11-05 | Ngk Spark Plug Co Ltd | サーメット工具及びサーメット工具の摩耗識別方法 |
JP2004351540A (ja) | 2003-05-28 | 2004-12-16 | Mitsubishi Materials Kobe Tools Corp | 高速切削加工で硬質被覆層がすぐれた耐摩耗性を発揮する表面被覆サーメット製切削工具 |
JP2005138209A (ja) * | 2003-11-05 | 2005-06-02 | Sumitomo Electric Hardmetal Corp | 耐摩耗性部材 |
JP2005271153A (ja) * | 2004-03-25 | 2005-10-06 | Tdk Corp | 膜除去用粒子 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2000236A4 * |
Also Published As
Publication number | Publication date |
---|---|
BRPI0710255B1 (pt) | 2019-08-13 |
MX2008012236A (es) | 2009-02-10 |
BRPI0710255A2 (pt) | 2011-08-09 |
EP2000236A4 (en) | 2012-01-25 |
IL194149A (en) | 2011-11-30 |
EP2000236A1 (en) | 2008-12-10 |
US7704593B2 (en) | 2010-04-27 |
US20090098372A1 (en) | 2009-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3298176B1 (en) | Tool with multi-layer arc pvd coating | |
WO2007111293A1 (ja) | 切削工具およびその製造方法 | |
KR101751562B1 (ko) | 코팅된 절삭 공구 | |
EP2594352B1 (en) | Surface coating cutting tool | |
CN109072406B (zh) | 涂覆的切削工具 | |
US9855608B2 (en) | Hard coating film for cutting tools | |
US7794860B2 (en) | Surface-coated high hardness material for tool | |
KR100576321B1 (ko) | 고인성 절삭공구/내마모성 공구 | |
JP3573256B2 (ja) | Al2O3被覆cBN基焼結体切削工具 | |
KR101579039B1 (ko) | 절삭공구용 경질피막 | |
KR20140109857A (ko) | 경질 피복층이 우수한 내치핑성과 내마모성을 발휘하는 표면 피복 절삭 공구 | |
JP3719731B2 (ja) | 被覆切削工具・被覆耐摩工具 | |
JP2006192545A (ja) | 表面被覆切削工具およびその製造方法 | |
US10744568B2 (en) | Coated tool | |
KR20190081387A (ko) | 절삭공구용 경질피막 | |
JP4375691B2 (ja) | 複合高硬度材料 | |
JP5053561B2 (ja) | 切削工具およびその製造方法 | |
JP2002346811A (ja) | 被覆焼結体工具 | |
JP2009255282A (ja) | 表面被覆立方晶窒化ほう素基超高圧焼結材料製切削工具 | |
KR102200647B1 (ko) | 절삭공구용 경질피막 및 이의 제조방법 | |
JP3360339B2 (ja) | 被覆切削工具 | |
JPH09241826A (ja) | 超硬合金構造体、その製造方法及びそれを用いた切削工具 | |
KR100835387B1 (ko) | 고경도 및 고온 내산화성을 가지는 pvd 다층막 절삭공구 | |
CN101410209A (zh) | 切削工具及其制造方法 | |
KR20200079643A (ko) | 절삭공구용 경질피막 및 이의 제조방법 |
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: 07739623 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 194149 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007739623 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200780010815.6 Country of ref document: CN Ref document number: MX/A/2008/012236 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: PI0710255 Country of ref document: BR Kind code of ref document: A2 Effective date: 20080929 |