WO2008038560A1 - Arête de remplacement d'un outil de coupe - Google Patents

Arête de remplacement d'un outil de coupe Download PDF

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Publication number
WO2008038560A1
WO2008038560A1 PCT/JP2007/068252 JP2007068252W WO2008038560A1 WO 2008038560 A1 WO2008038560 A1 WO 2008038560A1 JP 2007068252 W JP2007068252 W JP 2007068252W WO 2008038560 A1 WO2008038560 A1 WO 2008038560A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
chip
ultra
layer
cutting
Prior art date
Application number
PCT/JP2007/068252
Other languages
English (en)
Japanese (ja)
Inventor
Tetsuro Mantani
Narihito Tanaka
Terutoshi Tsunashima
Terumi Sakakida
Original Assignee
Kanefusa Kabushiki Kaisha
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 Kanefusa Kabushiki Kaisha filed Critical Kanefusa Kabushiki Kaisha
Priority to JP2008536342A priority Critical patent/JP5095621B2/ja
Publication of WO2008038560A1 publication Critical patent/WO2008038560A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
    • B27G13/04—Securing the cutters by mechanical clamping means
    • 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
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • 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

Definitions

  • the present invention relates to a blade for a cutting tool used for wood processing and processing similar to wood processing.
  • the present invention relates to a cutting blade for a cutting tool comprising a chip having an ultra-high hardness sintered layer excellent in wear resistance.
  • FIGS. 2c, 2d, and 4 of Japanese Utility Model Laid-Open No. 7-17505 505 gazette.
  • the replaceable blade disclosed in FIG. 2 of the 505 gazette is composed of a chip cut from a sintered blank having two layers of an ultra-high hardness sintered layer and a cemented carbide layer. It was arranged on the cutting edge side, and the cemented carbide layer was arranged on the base end side.
  • the replaceable blade disclosed in FIG. 4 of 505 gazette is a method of brazing a sintered blank having two layers of a super-hard sintered layer and a cemented carbide layer to a steel base metal.
  • a replaceable blade 20 shown in FIG. 8 is also conventionally known.
  • the replaceable blade 20 has a tip 21 composed of an ultra-high hardness sintered layer 22 and a cemented carbide layer 23, and a steel body 24 that holds the tip 21.
  • the chip 21 was brazed to the stepped step portion 24a of the steel body 24 so that the ultra-high hardness sintered layer 22 was on the blade back side.
  • the boundary surface between the ultra-high hardness sintered layer 22 and the cemented carbide layer 23 has an angle of at least 60 ° with respect to the cutting direction, and it is difficult to apply a shearing direction force to the boundary surface. For this reason, the ultra-high hardness sintered layer 22 was configured to be difficult to separate from the cemented carbide layer 23.
  • This type of replaceable blade is also a relatively large replaceable blade, which is significantly different in configuration from a replaceable blade consisting of only chips.
  • the replaceable blade 20 shown in FIG. The step 24a for the chip is formed on the steel body 24, and the chip 21 is brazed to the step 24a, so that the chip 21 on the back of the blade and the steel body 24 need to be flush with each other. Has the problem of becoming.
  • the present invention provides a cutting blade for a cutting tool that has a structure in which an ultra-high hardness sintered layer is difficult to peel off from a cemented carbide layer and that does not require brazing of a tip to a steel body or the like. The issue is to provide.
  • the replaceable blade of the present invention is composed only of a chip cut out from a sintered blank provided with a super-hard sintered layer and a cemented carbide layer.
  • the tip is cut from the sintered blank so that the back side of the blade becomes a super-hard sintered layer, and a cutting edge is formed on the tip edge of the tip. Characterized by the formation of a groove extending to
  • the replaceable blade is composed only of a chip cut out from a sintered blank, it is not necessary to braze the chip to a steel body or the like.
  • the ultra-high hardness sintered layer is located on the back side of the blade, the interface between the ultra-hard sintered layer and the cemented carbide layer has an angle of at least 60 ° with respect to the cutting direction. It will have a state. For this reason, the ultra-high hardness sintered layer is difficult to peel off from the cemented carbide layer during cutting.
  • the replaceable blade has a groove, the replaceable blade can be prevented from jumping out of the cutter body by the groove.
  • the chip is cut out from a sintered blank including an ultra-high hardness sintered layer and a cemented carbide layer, and the sintered blank is sintered under high temperature and high pressure. Therefore, internal stress may remain in the chip due to the difference in thermal expansion coefficient between the ultra-high hardness sintered layer and the cemented carbide layer, and the chip may be warped.
  • the replaceable blade of the present invention has a groove, and the warpage of the chip can be reduced by reducing the internal stress of the chip by the groove. Therefore, the groove has not only the function of preventing the cutter body from jumping out, but also the function of reducing chip warpage.
  • the invention can also have a cutting edge at both end edges and a groove at a substantially intermediate position between the both end edges. Therefore, after the cutting edge at one end edge is worn, the cutting edge at the other end edge can be used by inverting the replacement blade.
  • FIG. 1 is a side view of a replaceable blade.
  • FIG. 2 is a front view from the direction of arrow II in FIG.
  • FIG. 3 is a side view of the rotary blade and the replacement blade with the replacement blade attached to the rotary blade.
  • FIG. 4 is a perspective view of a sintered blank.
  • FIG. 5 is a part of a side view of a strip-shaped cut piece cut out from the sintered blank of FIG.
  • FIG. 6 is a front view of a replaceable blade according to the second embodiment.
  • FIG. 7 is a side view of a rotary blade and a replacement blade according to Embodiment 3.
  • FIG. 8 is a perspective view of a conventional replaceable blade.
  • the replaceable blade 1 is a replaceable blade for cutting tools similar to wood processing and wood processing, and has two layers of a super-hard sintered layer 2 and a cemented carbide layer 3 as shown in FIG. .
  • the ultra-high hardness sintered layer 2 is made of polycrystalline diamond (PCD), polycrystalline cubic boron nitride (PCBN), etc., and has excellent wear resistance.
  • the chip la is cut out from the strip-shaped cut piece 11a.
  • the chip la has a trapezoidal cross section, and is cut from the sintered blank 11 so that the short side is the cemented carbide layer 3 and the long side is the ultra-high hardness sintered layer 2. Therefore the tip la is bladed as shown in Figure 1
  • the back surface has an ultra-hard sintered layer 2 on the lc side and a cemented carbide layer 3 on the blade surface lb side.
  • a groove 2b is formed in the chip la.
  • the groove 2b is formed at a substantially central position in the short direction of the ultra-high hardness sintered layer 2 using a wire cut electric discharge machining method or the like.
  • the groove 2b extends over the entire length in the longitudinal direction of the ultra-high hardness sintered layer 2 and penetrates both edges.
  • the depth of the groove 2b is almost the same as the thickness of the ultra-high hardness sintered layer 2, and is, for example, 70% to 100% of the thickness of the ultra-high hardness sintered layer 2.
  • the thickness of the ultra-high hardness sintered layer 2 is not less than 10% and not more than 12%, and penetrates the ultra-high hardness sintered layer 2 to reach the cemented carbide layer 3! /.
  • the replaceable blade 1 has the cutting edges 2a at both ends, and has a groove 2b at a substantially intermediate position between the pair of cutting edges 2a.
  • the ultra-high hardness sintered layer 2 of the replaceable blade 1 has a thickness of about 0.5 mm, and the cemented carbide layer 3 has a thickness of 1.5 mm or more. Therefore, the replaceable blade 1 is improved in handleability with the overall thickness being increased by the cemented carbide layer 3.
  • the replaceable blade 1 is used by being detachably attached to, for example, a rotary blade 10.
  • the rotary blade 10 has a substantially disc-shaped cutter body 4, a back seat 5 provided in an outer peripheral opening 4 a of the cutter body 4, and a bolt 6 for pushing the back seat 5.
  • a plurality of outer peripheral openings 4 a are formed at predetermined intervals on the outer peripheral portion of the cutter body 4.
  • the backing 5 has a ridge 5a that fits into the groove 2b of the replaceable blade 1. When the ridge 5a is fitted into the groove 2b, the replaceable blade 1 jumps out of the cutter body 4 by centrifugal force. To prevent that.
  • the bolt 6 is screwed into the rotating rear wall of the outer peripheral opening 4 a of the cutter body 4, and the replacement blade 1 is fixed to the cutter body 4 by pressing the replacement blade 1 through the back seat 5.
  • the first embodiment is formed as described above. That is, the replaceable blade 1 is composed only of a chip 1 a cut out from a sintered blank 11 having an ultra-high hardness sintered layer 2 and a cemented carbide layer 3 as shown in FIG.
  • the chip la is cut from the sintered blank 11 so that the back surface lc side of the blade is the ultra-hard sintered layer 2, and a cutting edge 2a is formed at the tip edge of the chip la, and the cutting edge is formed on the back surface lc of the chip la.
  • a groove 2b extending in the blade length direction of 2a is formed.
  • the replaceable blade 1 is composed only of the chip la cut out from the sintered blank 11, it is not necessary to braze the chip la to a steel body or the like.
  • the ultra-high hardness sintered layer 2 is located on the back surface lc side of the replaceable blade 1, the boundary surface between the ultra-high hardness sintered layer 2 and the cemented carbide layer 3 is cut as shown in Fig. 3. It will have an angle of at least 60 ° to the direction. For this reason, the ultra-high hardness sintered layer 2 is difficult to peel off from the cemented carbide layer 3 during cutting.
  • the replaceable blade 1 since the replaceable blade 1 has the groove 2b, the replaceable blade 1 can be prevented from jumping out of the cutter body 4 by the groove 2b.
  • the replaceable blade 1 reduces the internal stress remaining in at least one of the ultra-hard sintered layer 2 and the cemented carbide layer 3 by the groove 2b, thereby reducing the warping of the chip la. It is configured to do this.
  • the chip la is cut out from the sintered blank 11 including the ultra-high hardness sintered layer 12 and the cemented carbide layer 13 as shown in FIG. 4, and the sintered blank 11 is sintered under high temperature and high pressure. . Therefore, internal stress may remain in the chip la due to a difference in thermal expansion coefficient between the ultra-high hardness sintered layer 12 and the cemented carbide layer 13, and the chip la may be warped.
  • the replaceable blade 1 has a groove 2b.
  • the groove 2b has not only a function of preventing the protrusion from the cutter body 4 but also a function of reducing the warping of the chip la.
  • the replaceable blade 1 has a cutting edge 2a at both end edges and a groove 2b at a substantially middle position between both end edges. Therefore, after the cutting edge 2a at the one end edge is worn, the cutting edge 2a at the other end edge can be used by reversing the replacement blade 1.
  • the replacement blade 1 can also be regenerated by re-grinding the cutting edge 2a after the pair of cutting edges 2a are worn. That is, the replaceable blade 1 can regenerate the cutting edge 2a by regrinding the end face in the short direction, which is a cut surface when cut from the sintered blank 11 as shown in FIG. Therefore, compared to the case where the back surface lc side of the blade is re-polished, the polishing amount of the ultra-high hardness sintered layer 2 having high hardness is small and the structure is easy to polish. In addition, the area gripped by the polishing machine is wider than the case where the back side of the blade lc side is re-polished! Also, since the groove 2b is not formed on the surface to be polished, if the groove 2b becomes shallow by polishing! /, No problem will occur! /.
  • the replaceable blade 1 has cutting edges 2c at both ends in the short direction, and has a groove 2b at an intermediate position between the pair of cutting edges 2c.
  • the cutting blade 2c has linear portions 2cl extending parallel to the longitudinal direction of the replaceable blade 1 on both the left and right sides, and has a notch portion 2c2 between these linear portions 2cl.
  • the notch 2c2 is formed in a V shape, a U shape, or a curved surface depending on the desired edge processing.
  • the groove 2b extends in the blade length direction (the left-right direction in FIG. 6) of the cutting blade 2c.
  • the third embodiment will be described with reference to FIG.
  • the third embodiment is formed in substantially the same manner as the first embodiment, but differs from the first embodiment in that the groove 3a is provided on the cemented carbide layer 3 side.
  • Embodiment 3 will be described focusing on the differences.
  • the replaceable blade 1 according to Embodiment 3 has a groove 3 a in the cemented carbide layer 3 on the blade surface lb side.
  • the groove 3a extends in the blade length direction at a substantially middle position between the pair of cutting blades 2a.
  • Convex ridges 4c are formed on the rotation rear wall surface of the outer peripheral opening 4a of the cutter body 4 facing the groove 3a.
  • the protrusion 4c is fitted into the groove 3a to prevent the replaceable blade 1 from jumping out of the cutter body 4 due to centrifugal force.
  • the present invention is not limited to the embodiments;! To 3, and may be the following embodiments.
  • the spare blades of Embodiments 1 to 3 are constituted by chips cut from a sintered blank having only two layers of a super-hard sintered layer and a cemented carbide layer.
  • the replacement blade may be formed only from a chip cut from a sintered blank provided with another layer.
  • the replaceable blades of Embodiments 1 to 3 have a configuration having cutting edges at both end edges. However, it may be configured to have a cutting edge only at one edge.
  • the replacement blades of Embodiments 1 to 3 are configured to have cutting blades at both edges in the short direction.
  • It may be a replaceable blade that has a reverse force in the lateral direction and the length in the short direction, and a replaceable blade having cutting edges at both ends in the longitudinal direction.
  • the grooves formed in the replaceable blades of Embodiments 1 to 3 cut through both longitudinal edges of the replaceable blade. It was. However, the groove may extend in the longitudinal direction and may not be cut off at both ends in the longitudinal direction.

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  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)

Abstract

L'invention concerne une arête de remplacement (1) consistant uniquement en un copeau (1a) coupé à partir d'une ébauche fritté ayant une couche frittée de ultra-haute dureté (2) et une couche d'alliage dure frittée (3). Le copeau (1a) est découpé de l'ébauche frittée de telle sorte que la couche frittée de ultra-haute dureté (2) se trouve sur le côté inverse de l'arête (1c). L'arête de coupe (2a) est formé au niveau du rebord d'extrémité de pointe du copeau (1a). Sur le côté inverse de l'arête (1c) du copeau (1a), se trouve une rainure (2b) s'étendant dans la direction de la longueur d'arête de l'arête de coupe (2a).
PCT/JP2007/068252 2006-09-27 2007-09-20 Arête de remplacement d'un outil de coupe WO2008038560A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008536342A JP5095621B2 (ja) 2006-09-27 2007-09-20 切削用工具の替刃

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-262460 2006-09-27
JP2006262460 2006-09-27

Publications (1)

Publication Number Publication Date
WO2008038560A1 true WO2008038560A1 (fr) 2008-04-03

Family

ID=39229996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/068252 WO2008038560A1 (fr) 2006-09-27 2007-09-20 Arête de remplacement d'un outil de coupe

Country Status (2)

Country Link
JP (1) JP5095621B2 (fr)
WO (1) WO2008038560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056938A (zh) * 2012-12-27 2013-04-24 重庆派斯克刀具制造股份有限公司 木工刨刀双刃刀片

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0659010U (ja) * 1993-02-01 1994-08-16 兼房株式会社 替刃式カッタ
JPH0717505U (ja) * 1993-08-27 1995-03-28 兼房株式会社 切削用工具の替刃
JPH0924504A (ja) * 1995-07-12 1997-01-28 Kanefusa Kk フライス及びドリル
JP3049369U (ja) * 1997-10-28 1998-06-09 兼房株式会社 切削用チップ
JPH11505483A (ja) * 1995-05-15 1999-05-21 サンドビック アクティエボラーグ 木材加工用途の耐食性及び耐酸化性の品位のｐｃｄ／ｐｃｂｎ
JP2929181B2 (ja) * 1996-02-08 1999-08-03 大阪ダイヤモンド工業株式会社 切削用チップ及び回転切削工具
JP2003127007A (ja) * 2001-08-10 2003-05-08 Sumitomo Electric Ind Ltd スローアウェイチップ
JP2005516811A (ja) * 2002-02-15 2005-06-09 ルムマッコウ オユ チッパー用ナイフアセンブリー

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0349369U (fr) * 1989-09-19 1991-05-14

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0659010U (ja) * 1993-02-01 1994-08-16 兼房株式会社 替刃式カッタ
JPH0717505U (ja) * 1993-08-27 1995-03-28 兼房株式会社 切削用工具の替刃
JPH11505483A (ja) * 1995-05-15 1999-05-21 サンドビック アクティエボラーグ 木材加工用途の耐食性及び耐酸化性の品位のｐｃｄ／ｐｃｂｎ
JPH0924504A (ja) * 1995-07-12 1997-01-28 Kanefusa Kk フライス及びドリル
JP2929181B2 (ja) * 1996-02-08 1999-08-03 大阪ダイヤモンド工業株式会社 切削用チップ及び回転切削工具
JP3049369U (ja) * 1997-10-28 1998-06-09 兼房株式会社 切削用チップ
JP2003127007A (ja) * 2001-08-10 2003-05-08 Sumitomo Electric Ind Ltd スローアウェイチップ
JP2005516811A (ja) * 2002-02-15 2005-06-09 ルムマッコウ オユ チッパー用ナイフアセンブリー

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056938A (zh) * 2012-12-27 2013-04-24 重庆派斯克刀具制造股份有限公司 木工刨刀双刃刀片

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JPWO2008038560A1 (ja) 2010-01-28
JP5095621B2 (ja) 2012-12-12

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