KR890004806A - 쓰로우어웨이식 보올엔드밀 - Google Patents

쓰로우어웨이식 보올엔드밀 Download PDF

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Publication number
KR890004806A
KR890004806A KR1019880012013A KR880012013A KR890004806A KR 890004806 A KR890004806 A KR 890004806A KR 1019880012013 A KR1019880012013 A KR 1019880012013A KR 880012013 A KR880012013 A KR 880012013A KR 890004806 A KR890004806 A KR 890004806A
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KR
South Korea
Prior art keywords
chip
cutting
throwaway
tip
end mill
Prior art date
Application number
KR1019880012013A
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English (en)
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KR930003287B1 (en
Inventor
나오히로 나까무라
요시가쯔 모리
게이지 한다
Original Assignee
나까하라 쓰네오
스미도모 덴끼 고오교오 가부시끼가이샤
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15335291&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR890004806(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 나까하라 쓰네오, 스미도모 덴끼 고오교오 가부시끼가이샤 filed Critical 나까하라 쓰네오
Publication of KR890004806A publication Critical patent/KR890004806A/ko
Application granted granted Critical
Publication of KR930003287B1 publication Critical patent/KR930003287B1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B23C5/1027—Ball nose end mills with one or more removable cutting inserts
    • B23C5/1045—Ball nose end mills with one or more removable cutting inserts having a cutting insert, the cutting edge of which subtends substantially 90 degrees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B23C5/1027—Ball nose end mills with one or more removable cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
    • B23C5/2213—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts  having a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/04—Overall shape
    • B23C2200/0477—Triangular
    • B23C2200/0483—Triangular rounded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/12—Side or flank surfaces
    • B23C2200/123—Side or flank surfaces curved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/12—Side or flank surfaces
    • B23C2200/125—Side or flank surfaces discontinuous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/20—Top or side views of the cutting edge
    • B23C2200/201—Details of the nose radius and immediately surrounding areas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/28—Angles
    • B23C2200/281—Negative rake angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/28—Angles
    • B23C2200/283—Negative cutting angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/28—Angles
    • B23C2200/287—Positive rake angles
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/1924—Specified tool shape
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1946—Face or end mill
    • Y10T407/1948—Face or end mill with cutting edge entirely across end of tool [e.g., router bit, end mill, etc.]
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y10T407/1962—Specified tooth shape or spacing
    • Y10T407/1964—Arcuate cutting edge

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

내용 없음

Description

쓰로우어웨이식 보올엔드밀
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 본 발명의 보올엔드밀의 일예를 도시한 측면도
제 2도는 그 정면도
제 3도는 평면도

Claims (5)

  1. 본체의 선단반구부의 거의 회전 대칭 위치에 2개의 절삭칩 포켁을 설치해서 각 절삭칩 포켓에 칩좌를 각각 복수개 형성하고 각각의 칩좌에 원호날을 가지는 쓰로우어웨이 칩을 절단나르이 회전 궤적이 반구면을 그리도록 설치함과 동시에, 이상태하에서의 각 절단날의 궤적의 랩대신으로 절단날 길이의 1/4이상, 각 절삭칩 포켓의 선단측 칩의 액시얼레이크를 0∼5°, 후퇴측 칩의 액시얼레이크를 4∼8°의 범위로 선단측의 칩의 그것보다도 크게 설정하고, 또한 후퇴측의 칩의 절단날 앞끝은 동일 절삭칩 포켓내에 있는 선단측의 칩의 절단날의 연장선상에 위치시켜서, 엔드밀의 정면에서 보아 날 형상이 S자로 되도록 한 것을 특징으로 하는 쓰로우어웨이식 보올엔드밀.
  2. 제 1항에 있어서, 본체의 선단반구부에 연속되는 스트레이트 외주부에 축방향 후방으로 향하여 확대되는 절삭칩 포켓을 둘레방향 및 축방향으로 변위하여 복수개 설치하고, 그의 절삭칩 포켓에 칩좌를 각 1개 설치하여 각각의 칩좌상에 스트레이트한 절단날능을 가지는 쓰로우어웨이칩을 절단날 길이의 1/4이상의 같은 랩 대신으로 궤적이 축방향으로 연속되는 상태로 설치하고, 이칩의 절단날로 스트레이트 외주날을 구성한 것을 특징으로 하는 쓰로우어웨이식 보올엔드밀.
  3. 제 1항 또는 제 2항중 어느 하나에 있어서, 본체의 선단반구부에 설치되는 쓰로우어웨이칩은, 평면시 형상이 거의 정다각형을 이루고, 노우즈 사이를 연결하는 각 절단날능은 모두의 노우즈를 지나는 외접원의 반경보다도 크고, 또한 서로 같은 곡률반경에서 원호상으로 외측으로 부풀어 있는 포지티브형의 칩이고, 각 측면에, 측면의 클리어런스각보다도 큰 클리어런스 각도로 경사하는 평탄면을 구비하고, 이평탄면을 칩좌에 대응하여 설치한 평탄면에 밀착시켜서 위치 결정되는 것을 특징으로 하는 쓰로우어웨이식 보올엔드밀.
  4. 제 1항 내지 제3항중 어느 하나에 있어서, 본체의 선단반구부에 설치되는 쓰로우어웨이 칩의 경사면에 해당 칩의 절단날의 적어도 앞 끝쪽을 회전방향 후방으로 후퇴시키는 챔퍼면을 설치한 것을 특징으로 하는 쓰로우어웨이식 보올앤드밀.
  5. 평면시 형상이 거의 정 3각형을 이루고, 노우즈 사이를 연결하는 각 절단날능을 모두의 노우즈를 지나는 외접원의 반경보다도 크고 또한 서로 같은 곡률 반경에서 원호상으로 외측에 부풀어 있는 포지티브형 쓰로우어웨이칩에 있어서, 그 각측면에, 측면의 클리어런스각보다도 큰 클리어런스각도로 경사되는 평탄면을 형성한 것을 특징으로 하는 쓰로우어웨이칩.
    ※참고사항: 최초출원 내용에 의하여 공개하는 것임.
KR8812013A 1987-09-17 1988-09-16 Ball and mill with throw away insert KR930003287B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP?62-143290 1987-09-17
JP1987143290U JPS6446116U (ko) 1987-09-17 1987-09-17

Publications (2)

Publication Number Publication Date
KR890004806A true KR890004806A (ko) 1989-05-10
KR930003287B1 KR930003287B1 (en) 1993-04-24

Family

ID=15335291

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8812013A KR930003287B1 (en) 1987-09-17 1988-09-16 Ball and mill with throw away insert

Country Status (6)

Country Link
US (1) US4898500A (ko)
EP (1) EP0307949B1 (ko)
JP (1) JPS6446116U (ko)
KR (1) KR930003287B1 (ko)
AU (1) AU601079B2 (ko)
DE (1) DE3864638D1 (ko)

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JP2528385Y2 (ja) * 1989-09-06 1997-03-12 トヨタ車体株式会社 ボールエンドミル
SE466435B (sv) * 1990-06-19 1992-02-17 Sandvik Ab Radiepinnfraes med vaendskaer
US5346336A (en) * 1992-11-04 1994-09-13 Sandvik, Inc. Metal-cutting insert having a round cutting edge
DE4430171C2 (de) 1994-08-25 1996-08-14 Walter Ag Formschlüssig gesicherte Schneidplatte
US5672031A (en) * 1995-05-12 1997-09-30 Kennametal Inc. Milling cutter
US5653152A (en) * 1995-09-01 1997-08-05 Kennametal Inc. Toolholder for roughing and finishing a workpiece
IL119113A (en) * 1996-08-22 2000-10-31 Iscar Ltd Cutting insert
US5921720A (en) * 1998-01-23 1999-07-13 Lemke; Carl Ball nose cutting tool with center mounted tool bits
US5976144A (en) * 1998-03-18 1999-11-02 Vozeh Equipment Corp. Hollow dome reamer with removable teeth
US7588572B2 (en) 1999-03-18 2009-09-15 Greatbatch Medical S.A. Connector for domed cutting tool
DE19951186A1 (de) * 1999-10-22 2001-04-26 Widia Gmbh Schneideinsatz und Kugelkopffräser
DE10124234B4 (de) * 2001-05-18 2007-02-01 Wilhelm Fette Gmbh Rotierendes Fräswerkzeug
US6722826B2 (en) 2001-09-11 2004-04-20 Brian M. Cavanaugh Internal cavity cutting tool with stable support
DE10164459A1 (de) * 2001-12-21 2003-07-10 Mapal Fab Praezision Werkzeug zur spanabtragenden Bearbeitung einer konkaven, kugelförmigen Oberfläche
US6811359B2 (en) * 2002-05-31 2004-11-02 Kennametal Inc. True helical cutter system
US6773209B2 (en) * 2002-05-31 2004-08-10 Kennametal Inc. Helical insert and cutter bodies
US7229236B2 (en) * 2005-06-13 2007-06-12 Kennametal Inc. Helical cutting insert with progressive cutting edge
US7510353B2 (en) * 2006-02-16 2009-03-31 Remark Technologies, Inc. Indexable cutting tool insert and cutting tool
US8287213B2 (en) * 2006-02-16 2012-10-16 Remark Technologies, Inc. Indexable cutting tool insert for cutting tools
DE102009035754A1 (de) * 2009-07-24 2011-01-27 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Schneideinsatz für ein Schneidwerkzeug zur spanenden Bearbeitung, insbesondere zum Hochvorschubfräsen
CN101934399B (zh) * 2010-08-06 2012-08-15 威士精密工具(上海)有限公司 立方氮化硼非圆球面铣刀
US9700947B2 (en) 2014-06-27 2017-07-11 Kennametal Inc. Ballnose cutting tool and ballnose cutting insert
WO2020245878A1 (ja) * 2019-06-03 2020-12-10 オーエスジー株式会社 ボールエンドミル及び切削インサート

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SU427800A1 (ru) * 1971-05-24 1974-05-15 В.Б. Серебровский, М.С. Рычкова , П.Т. Вагин Сборный зуборезныйинструмент для обработкивпадин зубчатого колеса
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DE3022104C2 (de) * 1980-06-12 1982-08-19 Mapal Fabrik für Präzisionswerkzeuge Dr.Kress KG, 7080 Aalen Zerspanungswerkzeug mit Wendeplatte
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DE19619577C2 (de) * 1996-05-15 1998-12-03 Diehl Remscheid Gmbh & Co Verbindergleiskette mit Laufpolster

Also Published As

Publication number Publication date
EP0307949A1 (en) 1989-03-22
AU601079B2 (en) 1990-08-30
AU2230888A (en) 1989-03-23
DE3864638D1 (de) 1991-10-10
EP0307949B1 (en) 1991-09-04
JPS6446116U (ko) 1989-03-22
KR930003287B1 (en) 1993-04-24
US4898500A (en) 1990-02-06

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