KR890014195A - 드 릴 - Google Patents
드 릴 Download PDFInfo
- Publication number
- KR890014195A KR890014195A KR1019890002836A KR890002836A KR890014195A KR 890014195 A KR890014195 A KR 890014195A KR 1019890002836 A KR1019890002836 A KR 1019890002836A KR 890002836 A KR890002836 A KR 890002836A KR 890014195 A KR890014195 A KR 890014195A
- Authority
- KR
- South Korea
- Prior art keywords
- drill
- chip
- discharge groove
- shank
- wall
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix angles
- B23B2251/046—Variable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/48—Chip breakers
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예를 도시하는 드릴의 부분절단 측면도,
제2도는 제1도의 그 저면도,
제3도는 제1도의 Ⅲ-Ⅲ선 단면도.
Claims (4)
- 칩배출홈이 생크에 나선형상 또는 직선형상으로 형성됨과 동시에 생크의 선단부에 한쌍의 절단날이 회전중심으로부터 바깥둘레부까지 연속하여 형성되어 이루어진 드릴에 있어서, 바깥둘레쪽의 절단날에 의해 형성되는 칩의 평판부가 눌려 붙여지는 드릴의 회전방향 뒷쪽의 벽과 이 칩의 옆끝부분이 맞닿는 앞쪽의 벽에 의해 각각의 칩배출홈이 형성되고, 이 앞쪽의 벽은 뒷쪽의 벽에 대해서 칩이 전체적으로 커얼하는 것을 저지하도록 하는 기울기로 형성되어 있는 것을 특징으로 하는 드릴.
- 칩배출홈이 생크에 나선형상 또는 직선형상으로 형성되어 있음과 동시에 생크의 선단부에 한쌍의 절단날이 회전중심으로부터 바깥둘레부까지 연속하여 형성되어 이루어진 드릴에 있어서, 각각의 칩배출홈은 그 횡단면 형상이 대략 L자형으로 형성되고, 이 칩배출홈의 회전방향 앞쪽의 벽과 뒤쪽의 벽이 이루는 각이 70°∼120°의 범위내로 설정되어 있는 것을 특징으로 하는 드릴.
- 제1항 또는 제2항에 있어서, 상기 칩배출홈의 홈깊이가 드릴의 직경의 0.25∼0.40배의 범위내로 설정되어 있는 것을 특징으로 하는 드릴.
- 제1항 또는 제2항에 있어서, 상기 칩배출홈은 그 바깥둘레쪽이 회전방향쪽으로 넓혀지도록 앞쪽의 벽이 후퇴하여 형성되어 있는 것을 특징으로 하는 드릴.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5897488 | 1988-03-11 | ||
JP63-58974 | 1988-03-11 | ||
JP63-89568 | 1988-04-12 | ||
JP63089568A JP2603993B2 (ja) | 1988-03-11 | 1988-04-12 | ドリル |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890014195A true KR890014195A (ko) | 1989-10-23 |
KR950006363B1 KR950006363B1 (ko) | 1995-06-14 |
Family
ID=26399989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890002836A KR950006363B1 (ko) | 1988-03-11 | 1989-03-08 | 드릴 |
Country Status (6)
Country | Link |
---|---|
US (2) | US5004384A (ko) |
EP (1) | EP0332437B1 (ko) |
JP (1) | JP2603993B2 (ko) |
KR (1) | KR950006363B1 (ko) |
CA (1) | CA1308579C (ko) |
DE (1) | DE68925049T2 (ko) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5323823A (en) * | 1992-12-11 | 1994-06-28 | Roto Zip Tool Corporation | Wood router bit |
US5628837A (en) * | 1993-11-15 | 1997-05-13 | Rogers Tool Works, Inc. | Surface decarburization of a drill bit having a refined primary cutting edge |
US5609447A (en) * | 1993-11-15 | 1997-03-11 | Rogers Tool Works, Inc. | Surface decarburization of a drill bit |
DE59705390D1 (de) * | 1996-02-29 | 2001-12-20 | Komet Stahlhalter Werkzeug | Bohrwerkzeug für werkzeugmaschinen sowie verfahren zu dessen herstellung |
EP1275458A1 (en) * | 2001-07-10 | 2003-01-15 | Mitsubishi Materials Corporation | Drill |
JP2005186247A (ja) * | 2003-12-26 | 2005-07-14 | Dijet Ind Co Ltd | ツイストドリル |
CN101389432B (zh) * | 2006-02-23 | 2011-08-31 | 国立大学法人东京农工大学 | 非轴对称刃钻头 |
US7546786B2 (en) * | 2006-04-04 | 2009-06-16 | Kennametal Inc. | Toolholder with chip ejection segment thereupon |
SE531188C2 (sv) * | 2007-05-29 | 2009-01-13 | Sandvik Intellectual Property | Borrkropp för spånavskiljande bearbetning |
BR112013012595A2 (pt) * | 2010-11-26 | 2017-07-11 | Cpl Holdings Pty Ltd | broca de perfuração |
JP5762547B2 (ja) | 2011-09-06 | 2015-08-12 | オーエスジー株式会社 | ドリル |
JP5719938B2 (ja) | 2011-11-04 | 2015-05-20 | オーエスジー株式会社 | ドリル |
DE102012012479A1 (de) * | 2012-03-26 | 2013-09-26 | MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG | Bohrer |
US9232952B2 (en) | 2012-04-16 | 2016-01-12 | Medtronic Ps Medical, Inc. | Surgical bur with non-paired flutes |
US9883873B2 (en) | 2013-07-17 | 2018-02-06 | Medtronic Ps Medical, Inc. | Surgical burs with geometries having non-drifting and soft tissue protective characteristics |
US10335166B2 (en) | 2014-04-16 | 2019-07-02 | Medtronics Ps Medical, Inc. | Surgical burs with decoupled rake surfaces and corresponding axial and radial rake angles |
US9955981B2 (en) | 2015-03-31 | 2018-05-01 | Medtronic Xomed, Inc | Surgical burs with localized auxiliary flutes |
US10265082B2 (en) * | 2015-08-31 | 2019-04-23 | Medtronic Ps Medical, Inc. | Surgical burs |
WO2018221303A1 (ja) * | 2017-05-29 | 2018-12-06 | 京セラ株式会社 | ドリル及び切削加工物の製造方法 |
US11679442B2 (en) | 2018-06-22 | 2023-06-20 | Maestro Logistics, Llc | Drill bit and method for making a drill bit |
WO2022179709A1 (en) | 2021-02-26 | 2022-09-01 | Gripp-X B.V. | Drill bit |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US465392A (en) * | 1891-12-15 | Island | ||
US750537A (en) * | 1904-01-26 | Drilling-tool | ||
DE159437C (ko) * | ||||
US1069930A (en) * | 1912-04-23 | 1913-08-12 | William R Down | Drill. |
BE524021A (ko) * | 1951-10-12 | |||
US2936658A (en) * | 1956-08-08 | 1960-05-17 | Oscar L Riley | Twist drill |
US2966081A (en) * | 1959-03-18 | 1960-12-27 | United Greenfield Corp | Drill |
DE2043316A1 (de) * | 1970-08-25 | 1972-03-02 | Stock Ag R | Flüssigkeitsbekühlter Spiralbohrer |
US4222690A (en) * | 1977-12-03 | 1980-09-16 | Ryosuke Hosoi | Drill having cutting edges with the greatest curvature at the central portion thereof |
DE3131794C2 (de) * | 1980-08-29 | 1986-08-07 | Toshiaki Osaka Hosoi | Bohrer |
JPS58177214A (ja) * | 1982-04-08 | 1983-10-17 | Fuji Seikou Kk | ドリル |
US4605347A (en) * | 1982-12-27 | 1986-08-12 | Lockheed Missiles & Space Company, Inc. | High speed drill reamer |
JPS59219108A (ja) * | 1983-05-25 | 1984-12-10 | Sumitomo Electric Ind Ltd | ドリル |
JPS60177807A (ja) * | 1984-02-20 | 1985-09-11 | Toshiaki Hosoi | ドリル |
JPS61178110A (ja) * | 1985-02-01 | 1986-08-09 | Toshiaki Hosoi | ドリル |
JPS634211U (ko) * | 1986-06-23 | 1988-01-12 |
-
1988
- 1988-04-12 JP JP63089568A patent/JP2603993B2/ja not_active Expired - Lifetime
-
1989
- 1989-03-06 US US07/319,582 patent/US5004384A/en not_active Expired - Fee Related
- 1989-03-08 CA CA000593121A patent/CA1308579C/en not_active Expired - Lifetime
- 1989-03-08 KR KR1019890002836A patent/KR950006363B1/ko not_active IP Right Cessation
- 1989-03-09 DE DE68925049T patent/DE68925049T2/de not_active Expired - Fee Related
- 1989-03-09 EP EP89302336A patent/EP0332437B1/en not_active Expired - Lifetime
-
1990
- 1990-03-21 US US07/497,178 patent/US4975003A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5004384A (en) | 1991-04-02 |
KR950006363B1 (ko) | 1995-06-14 |
CA1308579C (en) | 1992-10-13 |
EP0332437B1 (en) | 1995-12-13 |
US4975003A (en) | 1990-12-04 |
JPH0230414A (ja) | 1990-01-31 |
DE68925049T2 (de) | 1996-07-04 |
JP2603993B2 (ja) | 1997-04-23 |
EP0332437A2 (en) | 1989-09-13 |
EP0332437A3 (en) | 1990-08-08 |
DE68925049D1 (de) | 1996-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20070503 Year of fee payment: 13 |
|
LAPS | Lapse due to unpaid annual fee |