WO2019096539A1 - Outil de coupe - Google Patents

Outil de coupe Download PDF

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Publication number
WO2019096539A1
WO2019096539A1 PCT/EP2018/078693 EP2018078693W WO2019096539A1 WO 2019096539 A1 WO2019096539 A1 WO 2019096539A1 EP 2018078693 W EP2018078693 W EP 2018078693W WO 2019096539 A1 WO2019096539 A1 WO 2019096539A1
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WO
WIPO (PCT)
Prior art keywords
cutting
cutting tool
hard metal
region
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2018/078693
Other languages
German (de)
English (en)
Inventor
Nicolas SARRAZIN
Steffen LANGER
Michael Magin
Philippe STREBLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceratizit Luxembourg SARL
Original Assignee
Ceratizit Luxembourg SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ceratizit Luxembourg SARL filed Critical Ceratizit Luxembourg SARL
Publication of WO2019096539A1 publication Critical patent/WO2019096539A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0053—Seam welding
    • B23K15/006—Seam welding of rectilinear seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0093—Welding characterised by the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/10—Non-vacuum electron beam-welding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/26—Seam welding of rectilinear seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/324—Bonding taking account of the properties of the material involved involving non-metallic parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/40—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/02—Structural design of saw blades or saw teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/20—Tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic materials other than metals or composite materials
    • B23K2103/52—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • 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
    • 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

Definitions

  • the present invention relates to a cutting tool with a
  • Cutting area made of hard metal and a support area made of a metallic material.
  • wood-containing organic compound For the processing of especially wood-based materials, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, wood-containing organic compound, and
  • Materials and fiber composites tools are known in which a cutting region made of a hard metal is arranged on a support region made of a metallic material, in particular a tool steel, to provide greater wear resistance in this cutting region and also a separation of optionally in the
  • Material metal objects such. of nails or screws.
  • Hard material particles which form the majority of the composite in weight percent, are embedded in a ductile metallic binder or spaces between the hard particles are filled with the ductile metallic binder.
  • Carbide is most commonly used, in which the hard material particles are formed at least predominantly by tungsten carbide and the metallic binder is a cobalt-based alloy or a cobalt-nickel-based alloy.
  • Base alloy of a metal means that this metal forms the main component of the alloy in percent by weight.
  • the cutting area made of hard metal is usually by means of a cohesive joining process with the metallic material of the
  • Carrier area which is in particular e.g. Can be done by soldering or welding.
  • EP 2 295 21 1 B1 describes an oscillating saw blade in which a one-piece cutting region made of hard metal is welded to a carrier region made of, for example, steel, into which a plurality of cutting edges are ground. It is an object of the invention to provide an improved cutting tool having a cutting area of hard metal and a carrier area of a metallic material and an improved method for producing such a cutting tool.
  • the object is achieved by a cutting tool according to claim 1.
  • the cutting tool has a cutting area made of a hard metal, which has hard material particles and a ductile metallic binder, and a support region made of a metallic material.
  • the cutting region and the carrier region are connected to one another in a material-locking manner via a beam welding joining region, in which at least the material of the carrier region has been melted by the action of an energy beam.
  • a proportion of the ductile metallic binder on the hard metal is at most 8 wt .-%.
  • the connection by means of a beam welding joining area becomes a significantly more temperature-resistant
  • the proportion of the ductile metallic binder in the hard metal with at most 8 wt .-% is significantly lower than in known cutting tools with a cutting area of hard metal, which is connected by beam welding to a support area.
  • a significantly improved wear resistance and hardness of the cutting area is provided.
  • the generation of a reliable connection between the hard metal of the cutting region and the metallic material of the carrier region is achieved by exact control of the beam welding process.
  • the beam welding joining process may e.g. when
  • the proportion of the ductile metallic binder on the hard metal is at most 7% by weight. It has been found that the cutting area in this case has particularly advantageous properties, in particular for processing wood-based materials.
  • the proportion of the ductile metallic binder on the hard metal is preferably at least 2% by weight. It was found that even with a very precise control of the beam welding joining process with a still lower binder content no stable and resilient formation of the
  • the cutting tool is a
  • Woodworking tool or a fiber composite machining tool It has been found that, in particular for machining wood-based materials, wood-containing materials and fiber composite materials, the hard metal cutting region with a relatively low binder content connected to the beam region via the beam-welding joining region is particularly well suited.
  • the cutting area has a plurality of integrally formed cutting edges, which cut into the hard metal of the
  • Cutting area are ground.
  • the cutting area has a greater extent, is with the
  • the hard material particles are formed at least predominantly by tungsten carbide.
  • the cutting area is formed of a material that is particularly suitable for machining
  • Wood materials, wood-containing materials and fiber composites n is particularly well suited.
  • the metallic material of the carrier area is steel, a load-bearing connection can be achieved over the carrier area in a particularly cost-effective manner to produce a machine tool and its drive mechanism.
  • the ductile metallic binder of the hard metal is Co, Ni, a Co-base alloy or a Ni-base alloy.
  • the metallic binder particularly advantageously provides both a very reliable connection of the hard material particles in the hard metal of the cutting region and a reliable material connection with the material of the carrier region over the beam welding joining region.
  • the hard metal of the cutting region has a Mo content in the range of 0.1-1.5% by weight. It has been found that, in particular, the use of a hard metal with this molybdenum content makes it possible to form a reliable connection of the cutting area with the carrier area over the beam welding joining area in a particularly reliable manner, without the properties of the hard metal in the
  • the hard metal of the cutting region has a Cr content in the range of 2 to 13% by weight of the ductile metallic binder of the hard metal. In this case, even with a low total content of the ductile metallic binder, the beam welding joining region can be reliably formed without greatly adversely affecting the properties of the cutting region.
  • the object is also achieved by a method according to claim 1 1.
  • the method comprises the following steps: Merging a sintered cutting area made of a hard metal with a proportion of a ductile metallic binder on the hard metal of at most 8 wt .-% and a support portion made of a metallic material,
  • Beam region by beam welding so that a beam welding ß- joining region is formed, in which at least the material of the carrier region is melted by the action of an energy beam.
  • the hard material particles are formed at least predominantly by tungsten carbide.
  • the cutting area is formed of a material that is particularly suitable for machining
  • Wood materials, wood-containing materials and fiber composites n is particularly well suited.
  • the metallic material of the support area is steel.
  • the carrier area in particular
  • Machine tool and its drive mechanism are produced.
  • the beam welding takes place by means of a
  • the integral connection can be carried out in a particularly simple manner with relatively little expenditure on equipment.
  • 1 shows a schematic representation of a cutting tool according to a first embodiment
  • 2 shows a schematic representation of a cutting tool according to a second embodiment
  • FIG. 3 is a schematic representation of a cutting tool according to a third embodiment
  • FIG. 4 is a schematic representation of a cutting tool according to a fourth embodiment
  • FIG. 5 is a schematic representation of a cutting tool according to a fifth embodiment
  • FIG. 6 shows a schematic representation of a cutting tool according to a sixth embodiment
  • FIG. 7 shows a schematic illustration of the cutting tool according to the sixth embodiment attached to a base body
  • FIG. 8 shows a schematic representation of a cutting tool according to a seventh embodiment.
  • a first embodiment of a cutting tool 1 will be described below with reference to FIG.
  • the cutting tool 1 is formed in the form of a saw blade for a Oszillationssäge.
  • the cutting tool 1 has a support region 2, which is formed from a metallic material, in particular e.g. out
  • Tool steel may be formed.
  • the carrier region 2 can be formed on an end forming a clamping section 2a with a plurality of recesses (not shown) for connection to the receptacle of a machine tool.
  • the hard metal of the cutting region 4 has hard-material particles, which may be formed, for example, predominantly predominantly by tungsten carbide, and a ductile metallic binder.
  • the ductile metallic binder may preferably be formed by cobalt, nickel, a cobalt-based alloy, a nickel-based alloy or by a cobalt-nickel-based alloy.
  • Base alloy of a metal in this context means that this metal forms the main component of the alloy.
  • cutting area 4 has a proportion of the ductile metallic binder of at most 8 percent by weight, i. the proportion of embedded
  • Hard material particles is at least 92 percent by weight.
  • the proportion of the ductile metallic binder on the hard metal can amount to at most 7 percent by weight.
  • the proportion of the ductile metallic binder on the hard metal should be at least 2
  • the hard metal of the cutting region 4 may preferably have a molybdenum content of between 0.1 and 1.5 percent by weight of the cemented carbide.
  • the cemented carbide may preferably have a chromium content in the range of 2-13% by weight of the ductile metallic binder of the cemented carbide.
  • the cutting portion 4 is integrally formed of the cemented carbide in the embodiment and has a plurality of teeth 4a ground into the cemented carbide, e.g. can be done in a conventional manner after connecting the cutting portion 4 with the support portion 2 by means of diamond grinding wheels.
  • the beam welding joining region 3 in which at least the material of the
  • Carrier portion 2 has been melted by the action of an energy beam extends in the embodiment almost exclusively in the material of the support portion 2 and only to a very limited extent in the material of
  • Cutting area 4 The manufacture of a cutting tool 1 according to the embodiment will be briefly described below.
  • Produced manufacturing process base body for the cutting area 4 is brought together with a base body for the support portion 2.
  • a beam welding process which may be in particular laser welding or electron beam welding, a
  • the energy beam is controlled and deliberately guided such that the energy is predominantly introduced into the material of the carrier region 2, so that almost only the material of the carrier region 2 is melted and the hard metal of the
  • Cutting tools 1 in the form of saw blades for an oscillating saw were each produced from a base body for the carrier region 2 and a base body for the cutting region 4 by means of laser beam welding.
  • Composition of the hard metal for the cutting area has been varied.
  • the laser beam used was guided such that the energy was introduced predominantly in the region of the metallic material of the carrier region 2.
  • a plurality of teeth were introduced into the cutting area 4 in each case by means of diamond grinding wheels.
  • the beam welding joining region 3 of the cutting tools 1 produced in this way was subsequently examined by light microscopy.
  • the Cutting tools 1 were used for machining wood and the wear occurring was examined.
  • the cutting portion 4 was formed of a hard metal having the following composition: 10.3 wt% Co,
  • Grain size from 0.5 to 0.8 pm.
  • a carbide with the following composition was used: 7.5 wt .-% Co, about 0.24 wt .-% Mo, about 0.39 wt .-% Cr, balance WC with a mean particle size of 0.5 - 0.8 pm.
  • Cutting area 4 used 6 wt .-% Co, about 0.19 wt .-% Mo, about 0.3 wt .-% Cr, balance WC with a mean particle size of 0.5 - 0.8 pm.
  • the cutting area 4 was made of a hard metal with the following
  • Composition 3.0 wt.% Co, approx. 0.17 wt.% Mo, approx. 0.26 wt.% Cr, remainder WC with an average grain size of 0.5-0.8 gm
  • the beam welding joint 3 had a very uneven shape but still provided sufficient mechanical strength. It was once again a significantly improved wear resistance compared to Example 2 can be observed.
  • Composition for use 2.25% by weight of Co, 0.75% by weight of Ni, approx. 0.05% by weight of Mo, approx. 0.35% by weight of Cr, balance WC with an average particle size from 0.2 to 0.5 pm.
  • the cutting tool 1 is formed in the form of a saw blade for a so-called saber saw.
  • the cutting tool 1 in turn has a carrier region 2 on, which is formed from a metallic material, in particular may be formed from tool steel.
  • a carrier region 2 on which is formed from a metallic material, in particular may be formed from tool steel.
  • the support portion 2 has a substantially saber-like, elongated shape.
  • the carrier region 2 can be formed on an end forming a clamping section 2a with one or more recesses for connection to the receptacle of a machine tool.
  • a cutting area 4 made of hard metal is connected to the carrier area 2 via a jet welding area 3 joining area 3.
  • Cutting area 4 comprises particles of hard material, e.g. in particular may be formed predominantly by tungsten carbide, and a ductile metallic binder. The cutting area 4 also points to the second
  • Embodiment a plurality of teeth 4a, which are ground into the hard metal, and has a proportion of the ductile metallic binder of at most 8 percent by weight.
  • the cutting tool 1 is designed in the form of a blank for the processing of wood and / or fiber composites n.
  • the cutting tool according to the third embodiment has a cutting area 4 made of hard metal with a proportion of a ductile metallic binder of at most 8 weight percent, which is connected via a beam welding joining area 3 with a support portion 2, which is formed of a metallic material, such. Stole.
  • the cutting tool 1 is formed as a reversible blade for woodworking.
  • the cutting tool 1 according to the fourth embodiment has a total of two cutting areas 4 of hard metal with a proportion of a ductile metallic binder of at most 8 percent by weight, each of beam welding joining areas 3 with a support portion 2 of a
  • the cutting tool 1 is formed as a planer blade, which in turn has two cutting areas 4 made of hard metal with a maximum of 8 percent by weight of metallic binder, over respective beam welding joining areas 3 with a support portion 2 of a metallic Material are connected.
  • Fig. 6 shows schematically a cutting tool 1 according to a sixth embodiment, as a milling tool for the wood and
  • Fiber composite material processing is formed.
  • the cutting tool 1 has a cutting area 4 made of hard metal, which has a proportion of a ductile metallic binder of not more than 8
  • Fig. 7 is shown schematically how two such cutting tools 1 are attached to a main body 100 of a milling cutter.
  • the cutting tool 1 is formed as a drill, in which a cutting region 4 made of hard metal with a proportion of a ductile metallic binder of at most 8 percent by weight via a beam welding joining region 3 is firmly bonded to a support portion 2 of a metallic material, the the shape of a

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  • Mechanical Engineering (AREA)
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  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

L'invention concerne un outil de coupe (1), présentant une zone de lame (4) en un métal dur, qui présente des particules dures incorporées dans un liant métallique ductile, et une zone support (2) en un matériau métallique. La zone de lame (4) et la zone support (2) sont liées l'une à l'autre par liaison de matière via une zone d'assemblage (3) par soudage par faisceau dans laquelle au moins le matériau de la zone support (2) a été fondu sous l'effet d'un rayon énergétique. Une proportion du liant métallique ductile par rapport au métal dur représente au plus 8 % en poids.
PCT/EP2018/078693 2017-11-15 2018-10-19 Outil de coupe Ceased WO2019096539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM248-2017 2017-11-15
ATGM248/2017U AT16111U1 (de) 2017-11-15 2017-11-15 Schneidwerkzeug

Publications (1)

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WO2019096539A1 true WO2019096539A1 (fr) 2019-05-23

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PCT/EP2018/078693 Ceased WO2019096539A1 (fr) 2017-11-15 2018-10-19 Outil de coupe

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AT (1) AT16111U1 (fr)
WO (1) WO2019096539A1 (fr)

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CN111702176A (zh) * 2020-06-29 2020-09-25 中国铁建重工集团股份有限公司 一种盾构机刀具的制备工艺
DE102019213382A1 (de) * 2019-09-04 2021-03-04 Robert Bosch Gmbh Sägewerkzeug
CN112831705A (zh) * 2019-11-22 2021-05-25 森拉天时卢森堡有限公司 碳化钨基胶合硬质材料
EP3824713A1 (fr) * 2019-11-25 2021-05-26 Ceratizit Luxembourg Sàrl Élément de coupe, utilisation correspondante et dispositif de coupe mobile correspondant

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EP3584024B1 (fr) * 2018-06-19 2022-05-04 Ceratizit Luxembourg Sàrl Lame de scie et son procédé de fabrication

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EP2295211B1 (fr) 2009-09-15 2017-05-03 WSEngineering GmbH & Co. KG Scie à oscillations

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EP2295211B1 (fr) 2009-09-15 2017-05-03 WSEngineering GmbH & Co. KG Scie à oscillations

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GUO Z ET AL: "Effect of Mo2C on the microstructure and properties of WC-TiC-Ni cemented carbide", INTERNATIONAL JOURNAL OF REFRACTORY METALS AND HARD MATERIALS, vol. 26, no. 6, 2 February 2008 (2008-02-02), ELSEVIER, AMSTERDAM [NL], pages 601 - 605, XP023783448, ISSN: 0263-4368, [retrieved on 20080202], DOI: 10.1016/J.IJRMHM.2008.01.007 *
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019213382A1 (de) * 2019-09-04 2021-03-04 Robert Bosch Gmbh Sägewerkzeug
CN112831705A (zh) * 2019-11-22 2021-05-25 森拉天时卢森堡有限公司 碳化钨基胶合硬质材料
EP3825430A1 (fr) * 2019-11-22 2021-05-26 Ceratizit Luxembourg Sàrl Matériau métallique dur à base de carbure de tungstène
WO2021099029A1 (fr) * 2019-11-22 2021-05-27 Ceratizit Luxembourg S.À.R.L Matériau de type carbure cémenté à base de carbure de tungstène
US12565696B2 (en) 2019-11-22 2026-03-03 Ceratizit Luxembourg S.A.R.L. Tungsten carbide-based cemented hard material
EP3824713A1 (fr) * 2019-11-25 2021-05-26 Ceratizit Luxembourg Sàrl Élément de coupe, utilisation correspondante et dispositif de coupe mobile correspondant
WO2021104979A1 (fr) * 2019-11-25 2021-06-03 Ceratizit Luxembourg S.À.R.L Élément de coupe, son utilisation et appareil de coupe mobile associé
CN114929008A (zh) * 2019-11-25 2022-08-19 森拉天时卢森堡有限公司 切割元件、其用途及具有其的移动切割设备
AU2020394461B2 (en) * 2019-11-25 2024-04-04 Ceratizit Luxembourg S.À.R.L Cutting element, use thereof and mobile cutting apparatus therewith
AU2020394461C1 (en) * 2019-11-25 2024-09-19 Ceratizit Luxembourg S.À.R.L Cutting element, use thereof and mobile cutting apparatus therewith
CN111702176A (zh) * 2020-06-29 2020-09-25 中国铁建重工集团股份有限公司 一种盾构机刀具的制备工艺
CN111702176B (zh) * 2020-06-29 2022-07-19 中国铁建重工集团股份有限公司 一种盾构机刀具的制备方法

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