WO2006046789A1 - Precision machining tool using composite material - Google Patents

Precision machining tool using composite material Download PDF

Info

Publication number
WO2006046789A1
WO2006046789A1 PCT/KR2004/003117 KR2004003117W WO2006046789A1 WO 2006046789 A1 WO2006046789 A1 WO 2006046789A1 KR 2004003117 W KR2004003117 W KR 2004003117W WO 2006046789 A1 WO2006046789 A1 WO 2006046789A1
Authority
WO
WIPO (PCT)
Prior art keywords
composite material
tool
cutting head
unit
material unit
Prior art date
Application number
PCT/KR2004/003117
Other languages
English (en)
French (fr)
Inventor
Sang-Gon Kim
Original Assignee
Vision Inno-Tech Corp.
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 Vision Inno-Tech Corp. filed Critical Vision Inno-Tech Corp.
Publication of WO2006046789A1 publication Critical patent/WO2006046789A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/003—Reaming tools with means for preventing chatter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • A61B17/1617—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material with mobile or detachable parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/02—Boring bars
    • B23B29/022—Boring bars with vibration reducing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1631—Special drive shafts, e.g. flexible shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/27—Composites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/36—Epoxy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2229/00—Details of boring bars or boring heads
    • B23B2229/04—Guiding pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2240/00—Details of connections of tools or workpieces
    • B23B2240/21—Glued connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/02—Cutting head and shank made from two different components which are releasably or non-releasably attached to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/06—Connections between component parts
    • B23D2277/065—Glued connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/24—Materials of the tool or the intended workpiece, methods of applying these materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/24—Materials of the tool or the intended workpiece, methods of applying these materials
    • B23D2277/2442—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/46—Guiding pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/60—Reaming tools comprising means for lubrication or cooling

Definitions

  • ⁇ 8> In accordance with a preferred embodiment of the present invention, it can provide a cutting tool of a light weight and a relatively cheap manufacturing cost which is capable of being easily fabricated into a desired shape at high speed using a composite material with a large damping ratio, a large specific stiffness and a small specific weight.
  • Fig. 3 represents a diagram showing a composite material unit of the precision machining tool in accordance with the embodiment of the present invention
  • a pitch based high modulus carbon/epoxy composite material e.g., an URN ,300 commercially sold by SK Chemicals located at Seoul in Korea, is used as a composite material.
  • the following Table 1 represents physical properties of the composite material used in the embodiment of the present invention. ⁇ 20> [Table 1]
  • a speci f ic st i f fness of the above-descr ibed mater ial is a value of approximately 21.8x10 m.
  • a Young ' s Modulus of a tungsten carbide al loy is ,
  • a specific stiffness approximately 3.3.xl0m. Accordingly, although a static stiffness of the composite material becomes to reduce to 70% in comparison with that of the tungsten carbide, a damping ratio of the composite material is approximately 10 times that of the tungsten carbide and a specific stiffness of the composite material is approximately 7 times that of the tungsten carbide. Therefore, since a resonance frequency of the tool becomes to increase in comparison with that of a conventional tool, a work piece can be fabricated at high speed without generating a chatter effect. Whereas, a
  • the density of the composite material is no more than 1,755 kg/m as about 1/90 value of that of the tungsten carbide alloy as shown in the above-mentioned table 1. Therefore, a load to the fabricating device mounting the tool is reduced and a size of the fabricating device can be reduced since a weight of the tool 1 is reduced. Further, since a stiffness of the composite material is smaller than that of the tungsten carbide alloy, there is an advantage that the tool 1 is easily fabricated into a desired shape.
  • a core 16 is arranged at a hollow part 13 of the composite material unit 12.
  • the core 16 is in a shape of a cylinder type sealing material made of steel. Since the steel as the material of the core 16 has a relatively low specific stiffness in comparison with that of the composite material, the resonance frequency of the tool 1 becomes to reduce as a diameter of the core 16 increases. Since the reduction trend of the resonance frequency is related to a square of the diameter of the core 16, if the diameter of the core 16 is small, the resonance frequency of the tool 1 is not nearly changed, but if the diameter of the tool 1 becomes to increase, the resonance frequency of the tool 1 is drastically decreased.
  • the diameter of the core 16 has to be large in order to reduce the use amount of the relatively high price composite material in comparison with the steel and to easily stack the composite material during the manufacture of the composite material unit 12. Accordingly, it is preferable that the diameter of the core 16 is determined as a largest value within a range which does not affect the resonance frequency of the tool 1 greatly.
  • an adhesive layer(not shown) is placed between the composite material unit 12 and the cover unit 14.
  • the adhesive layer is made of an adhesive material and plays a role of combining the composite material unit 12 with the cover unit 14. It is preferable that the adhesive is a material having a viscoelastic property. If the material having the viscoelastic property exists between the elastic materials, there occurs a great structural damping in comparison with a material damping of the structure by generating a constraint damping effect. That is, as in the present invention, in case when the composite material unit 12 as an elastic material and the cover unit 14 are combined through the medium of the adhesive having the viscoelastic property, the damping ratio of the tool 1 rather increases in comparison with when only the composite material is used.
  • an epoxy adhesive is used as the adhesive.
  • the adhesive layer is formed by coating the epoxy adhesive on the outer surface of the composite material unit 12, after the composite material unit 12 coated by the adhesive is inserted into inside of the cover unit 14, and by solidifying the composite material unit 12 at a high temperature.
  • a predetermined thickness e.g., 0.1 mm
  • both the resonance frequency and the damping ratio of the tool 1 increase.
  • an adhesive intensity has the most excellent value in case that the adhesion thickness is below a predetermined thickness. Therefore, the thickness of the adhesive layer is determined based on these properties of the adhesive layer.
  • protrusion parts 19 are placed at a predetermined interval along a longitudinal direction of the composite material unit 12. In Fig. 4, a transverse direction cross-section of one of the protrusion parts 19 is depicted.
  • the protrusion parts 19 prevent the non-solidified adhesive from being pushed and flowing out to the outside of the cover unit 14. It is preferable that maximum diameters of the protrusion parts 19 are smaller than an inner diameter of the cover unit 14. By this configuration, the adhesive can move through a space between the protrusion parts 19 and the cover unit 14.
  • Fig. 5 describes the cutting head 20 and the head adapter 30 in accordance with the present invention.
  • the head adapter 30 is depicted as a partial cut view for the purpose of showing an inside structure of the head adapter 30.
  • the cutting head 20 is connected to the body 10 of the tool via the head adapter 30.
  • the head adapter 30 is made of a metal material; and the head adapter 30 is inserted into one end of the body 10 and engaged with the cutting head 20, thereby connecting the cutting head 20 to the body 10.
  • the cutting head 20 is made of a metal material and at least one cutter 22 is arranged on an outer surface of the cutting head 20.
  • the cutter 22 is provided with an edge to fabricate the surface of the work piece and it is supported to the cutting head 20 by means of a device such as a clamp.
  • the outer surface is tapered and the protruded part 24 is prepared in such a way that a central axis of the protruded part 24 is aligned with a central axis of the cutting head 20.
  • the protruded part 24 is approximately in a shape of a truncated cone.
  • the position determining pine 26 is placed at a position offset from the central axis of the cutting head 20.
  • the head adapter 30 is at one side thereof provided with an insertion hole 32 which has an inner surface corresponding to the tapered outer surface of the protruded part 24 of the cutting head 20 and a central axis substantially aligned with the central axis of the body 10, and a hole 34 into which the position determining pin 26 is inserted.
  • ⁇ 3o> The tool 1 including the body 10 and the cutting head 20 is connected to the machining device via a shank 50.
  • Fig. 1 the tool 1 combined with the shank 50 is shown.
  • a large amount of heat is generated when the tool 1 fabricates the surface of the work piece at high speed.
  • the material properties of the composite material and the adhesive can be deteriorated by the heat. Therefore, in this embodiment, a path is prepared to move a coolant inside of the tool 1.
  • the path receives the coolant from the fabricating device by connecting it to the path prepared at the shank 50 and the coolant is transmitted to the cutting head 20 through the path prepared at the head adapter 30.
  • a coolant path connected to the path of the head adapter 30 is prepared and a plurality of branch paths directing from the coolant path to the outer surface of the cutting head 20 is prepared.
  • a hollow path is prepared to move the coolant along the central axis of the LS screw.
  • the coolant can be supplied between an edge of the cutter 22 and the surface of the work piece during the machining of the work piece by extending the branch paths to the outer surface adjacent to the cutter 22. If the core 18 is placed at the hollow part of the body 10, a moving path of the coolant can be formed along the central axis of the core 18. If a fluid exists in the core 18, the damping ratio of the tool 1 becomes to increase since an amount of the metal material is relatively reduced.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
PCT/KR2004/003117 2004-10-29 2004-11-30 Precision machining tool using composite material WO2006046789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040087222A KR100683943B1 (ko) 2004-10-29 2004-10-29 복합재료를 이용한 정밀가공용 공구
KR10-2004-0087222 2004-10-29

Publications (1)

Publication Number Publication Date
WO2006046789A1 true WO2006046789A1 (en) 2006-05-04

Family

ID=36228007

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/003117 WO2006046789A1 (en) 2004-10-29 2004-11-30 Precision machining tool using composite material

Country Status (2)

Country Link
KR (1) KR100683943B1 (ko)
WO (1) WO2006046789A1 (ko)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009015672A1 (en) 2007-07-31 2009-02-05 Stryker Trauma Gmbh Carbon shafted reaming device
CH702093A1 (fr) * 2009-10-28 2011-04-29 Chirmat Sarl Arbre d'entraînement pour alésoir chirurgical.
JP5120681B1 (ja) * 2012-04-17 2013-01-16 イトウ・テクノ・オフィス株式会社 防振ボーリングバー
WO2014001198A1 (de) * 2012-06-25 2014-01-03 Ferroll Gmbh Tiefbohrmaschine, adapter und tiefbohrverfahren
CN104023954A (zh) * 2011-12-14 2014-09-03 波音公司 具有共结合的加强件的复合材料柱状结构及制造方法
JP2014528367A (ja) * 2011-10-10 2014-10-27 ハルトメタル−ウェルクゾーグファブリック ポール ホーン ゲゼルシャフト ミット ベシュレンクテル ハフツング 被加工物を機械加工するための工具システム
US9345489B2 (en) 2010-03-31 2016-05-24 Stryker European Holdings I, Llc Reaming device with carbon fiber shaft and molded interface element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100828794B1 (ko) * 2006-12-11 2008-05-09 현대자동차주식회사 커넥팅로드의 홈 가공 공구
CN102744561B (zh) * 2012-07-21 2014-09-17 西安煤矿机械有限公司 一种深孔加工工艺
KR101431955B1 (ko) * 2013-01-09 2014-08-19 에어보스 에어 툴 컴퍼니 리미티드 공압공구용 샤프트를 제작하는 방법 및 동일하게 만들어진 샤프트

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871286A (en) * 1988-10-24 1989-10-03 Gte Valenite Corporation Grooving or threading tool
US5971988A (en) * 1995-04-07 1999-10-26 Komet Praezisionswerkzeuge Robert Breuning Gmbh Device for chip removing machining
JP2002059314A (ja) * 2000-06-06 2002-02-26 Fuji Seiko Ltd 加工工具
US6575672B1 (en) * 1997-05-12 2003-06-10 Hartmetallwerkzeugfabrik Andreas Maier Gmbh Superfinishing tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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KR910007130B1 (ko) * 1988-01-28 1991-09-18 이대길 탄소섬유 보오링 바아
JPH09277106A (ja) * 1996-04-17 1997-10-28 Kobe Steel Ltd ボーリングバー
EP0812641A1 (en) * 1996-06-10 1997-12-17 Kabushiki Kaisha Kobe Seiko Sho Boring bar
SE511395C2 (sv) * 1996-07-08 1999-09-20 Sandvik Ab Svarvbom, förfarande för tillverkning av en svarvbom samt användning av densamma
KR100441386B1 (ko) 2001-07-23 2004-07-23 비젼이노텍(주) 고강성 복합재료 라인보링바 및 그 제조방법
KR100589618B1 (ko) * 2004-05-20 2006-06-19 한국과학기술원 절삭 바이트 장착용 하이브리드 바이트 홀더

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871286A (en) * 1988-10-24 1989-10-03 Gte Valenite Corporation Grooving or threading tool
US5971988A (en) * 1995-04-07 1999-10-26 Komet Praezisionswerkzeuge Robert Breuning Gmbh Device for chip removing machining
US6575672B1 (en) * 1997-05-12 2003-06-10 Hartmetallwerkzeugfabrik Andreas Maier Gmbh Superfinishing tool
JP2002059314A (ja) * 2000-06-06 2002-02-26 Fuji Seiko Ltd 加工工具

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009015672A1 (en) 2007-07-31 2009-02-05 Stryker Trauma Gmbh Carbon shafted reaming device
AU2007357001B2 (en) * 2007-07-31 2012-07-26 Stryker European Holdings I, Llc Carbon shafted reaming device
CH702093A1 (fr) * 2009-10-28 2011-04-29 Chirmat Sarl Arbre d'entraînement pour alésoir chirurgical.
WO2011051260A1 (fr) 2009-10-28 2011-05-05 CHIRMAT Sàrl Arbre d'entraînement pour alésoir chirurgical
US20120253348A1 (en) * 2009-10-28 2012-10-04 Yvan Arlettaz Drive shaft for a surgical reamer
US9241719B2 (en) 2009-10-28 2016-01-26 Chirmat Sarl Drive shaft for a surgical reamer
US9345489B2 (en) 2010-03-31 2016-05-24 Stryker European Holdings I, Llc Reaming device with carbon fiber shaft and molded interface element
JP2014528367A (ja) * 2011-10-10 2014-10-27 ハルトメタル−ウェルクゾーグファブリック ポール ホーン ゲゼルシャフト ミット ベシュレンクテル ハフツング 被加工物を機械加工するための工具システム
US9802259B2 (en) 2011-10-10 2017-10-31 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Tool system for machining a workpiece
CN104023954A (zh) * 2011-12-14 2014-09-03 波音公司 具有共结合的加强件的复合材料柱状结构及制造方法
JP5120681B1 (ja) * 2012-04-17 2013-01-16 イトウ・テクノ・オフィス株式会社 防振ボーリングバー
WO2014001198A1 (de) * 2012-06-25 2014-01-03 Ferroll Gmbh Tiefbohrmaschine, adapter und tiefbohrverfahren

Also Published As

Publication number Publication date
KR100683943B1 (ko) 2007-02-15
KR20060038072A (ko) 2006-05-03

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