JPS634211U - - Google Patents
Info
- Publication number
- JPS634211U JPS634211U JP1986095820U JP9582086U JPS634211U JP S634211 U JPS634211 U JP S634211U JP 1986095820 U JP1986095820 U JP 1986095820U JP 9582086 U JP9582086 U JP 9582086U JP S634211 U JPS634211 U JP S634211U
- Authority
- JP
- Japan
- Prior art keywords
- drill
- drill body
- cutting edge
- radius
- chip discharge
- 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.)
- Pending
Links
- 239000011247 coating layer Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 1
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
- B23B2251/24—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
-
- 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
- Y10T408/81—Tool having crystalline cutting edge
-
- 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)
Description
第1図および第2図はこの考案の一実施例を示
し、第1図は正面図、第2図は一部省略した側面
図、第3図〜第7図は各々従来のドリルを示す切
刃の外周における横断面図、第8図〜第11図は
この考案に係るドリルを用いた実験結果を示すも
ので、第8図は切削時の負荷の値を示すグラフ、
第9図は各切削条件における加工穴の面粗さと拡
大代を示す図、第10図は連続して多数の穴を加
工した際の加工穴の面粗さと拡大代の変化を示す
図、第11図は再研摩後に再び連続して多数の穴
を加工した際の加工穴の面粗さと拡大代の変化を
示す図である。 30……ドリル本体、31……切刃、32……
切屑排出溝、33……すくい面を構成する部分、
34……切刃側を向く部分、W……心厚、R1,
R2……円弧の半径、D……ドリルの直径。
し、第1図は正面図、第2図は一部省略した側面
図、第3図〜第7図は各々従来のドリルを示す切
刃の外周における横断面図、第8図〜第11図は
この考案に係るドリルを用いた実験結果を示すも
ので、第8図は切削時の負荷の値を示すグラフ、
第9図は各切削条件における加工穴の面粗さと拡
大代を示す図、第10図は連続して多数の穴を加
工した際の加工穴の面粗さと拡大代の変化を示す
図、第11図は再研摩後に再び連続して多数の穴
を加工した際の加工穴の面粗さと拡大代の変化を
示す図である。 30……ドリル本体、31……切刃、32……
切屑排出溝、33……すくい面を構成する部分、
34……切刃側を向く部分、W……心厚、R1,
R2……円弧の半径、D……ドリルの直径。
Claims (1)
- ドリル本体の先端部に2つの切刃を形成すると
ともに、これら2つの切刃に対応して前記ドリル
本体の外周に2つの切屑排出溝を形成してなるド
リルにおいて、前記ドリル本体の心厚を0.25
D〜0.50D(Dはドリルの直径)に設定し、
前記切屑排出溝を画成する壁面のうちすくい面を
構成する部分を回転方向に対して半径が0.20
D〜0.30Dの円弧状に窪む凹曲面によつて形
成するとともに、切刃側を向く部分を半径が0.
25D〜0.40Dの円弧状に切刃側に向かつて
突出する凸曲面によつて形成し、かつ少なくとも
上記切刃部分に上記ドリル本体より硬質な被覆層
を形成したことを特徴とするドリル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986095820U JPS634211U (ja) | 1986-06-23 | 1986-06-23 | |
US06/895,177 US4744705A (en) | 1986-06-23 | 1986-08-11 | Twist drill bit |
DE19863628262 DE3628262A1 (de) | 1986-06-23 | 1986-08-20 | Spiralbohrer |
KR2019860014014U KR900003547Y1 (ko) | 1986-06-23 | 1986-09-10 | 드릴(Drill) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986095820U JPS634211U (ja) | 1986-06-23 | 1986-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS634211U true JPS634211U (ja) | 1988-01-12 |
Family
ID=14148048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986095820U Pending JPS634211U (ja) | 1986-06-23 | 1986-06-23 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4744705A (ja) |
JP (1) | JPS634211U (ja) |
KR (1) | KR900003547Y1 (ja) |
DE (1) | DE3628262A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0460606U (ja) * | 1990-09-28 | 1992-05-25 | ||
JP2001341015A (ja) * | 2000-03-31 | 2001-12-11 | Hitachi Tool Engineering Ltd | ステンレス切削用ツイストドリル |
JP2004512968A (ja) * | 2000-10-05 | 2004-04-30 | ケンナメタル インコーポレイテッド | 切削工具とこの切削工具を製造する方法及び装置 |
JP2008296300A (ja) * | 2007-05-30 | 2008-12-11 | Tungaloy Corp | プリント配線板用ドリル |
JP2020515297A (ja) * | 2017-03-29 | 2020-05-28 | デンツプライ シロナ インコーポレイテッド | 放物線器具 |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5230593A (en) * | 1987-12-14 | 1993-07-27 | Mitsubishi Kinzoku Kabushiki Kaisha | Twist drill |
EP0320881B2 (en) * | 1987-12-14 | 2003-10-22 | Mitsubishi Materials Corporation | Twist drill |
JP2603993B2 (ja) * | 1988-03-11 | 1997-04-23 | 俊明 細井 | ドリル |
NL8821044A (nl) * | 1988-10-21 | 1990-10-01 | Zubkov Alexei Vladimirovich | Spiraalboor. |
DE3927615A1 (de) * | 1989-08-22 | 1991-02-28 | Hartner Gmbh & Co Kg G | Spiralbohrer fuer rost- und saeurebestaendige staehle |
EP0712343B1 (de) * | 1993-08-06 | 1998-12-30 | KENNAMETAL HERTEL AG Werkzeuge + Hartstoffe | Wendelbohrer |
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 |
ATE382445T1 (de) | 1995-03-30 | 2008-01-15 | Guehring Joerg Dr | Schneidwerkzeug |
DE29601653U1 (de) * | 1995-03-30 | 1996-08-01 | Gühring, Jörg, Dr., 72458 Albstadt | Schneidwerkzeug |
DE19511829B4 (de) * | 1995-03-30 | 2005-12-15 | Jörg Dr. Gühring | Schneidwerkzeug |
DE19627436A1 (de) * | 1996-07-08 | 1998-01-15 | Guenther & Co Gmbh & Co | Vollhartmetallbohrer |
IL123794A (en) * | 1998-03-23 | 2000-11-21 | Hanita Metal Works Ltd | Milling cutter |
US6431962B1 (en) | 2000-10-05 | 2002-08-13 | Kennametal Inc. | Method and apparatus for making a cutting tool having a flute |
US6419561B1 (en) | 2000-10-05 | 2002-07-16 | Kennametal Inc. | Method and apparatus for making a cutting tool having a plurality of margins |
EP1923157B1 (en) * | 2001-07-10 | 2020-07-29 | Mitsubishi Materials Corporation | Drill |
JP2003300110A (ja) * | 2002-04-03 | 2003-10-21 | Osg Corp | ドリルおよびその製造方法 |
DE20210909U1 (de) * | 2002-07-18 | 2003-05-15 | HAKOS Präzisionswerkzeuge Hakenjos GmbH, 78054 Villingen-Schwenningen | Bohrwerkzeug |
US7832966B2 (en) * | 2003-01-30 | 2010-11-16 | Kennametal Inc. | Drill for making flat bottom hole |
GB0320148D0 (en) * | 2003-08-28 | 2003-10-01 | Dormer Tools Sheffield Ltd | Partially coated drill tool |
DE10353514A1 (de) * | 2003-11-14 | 2005-06-23 | Heule, Ulf | Bohrplatte mit klemmender Befestigung in einem Grundkörper |
JP3874774B2 (ja) * | 2004-08-19 | 2007-01-31 | オーエスジー株式会社 | 鋳抜き穴加工用ドリル |
WO2007010601A1 (ja) * | 2005-07-20 | 2007-01-25 | Osg Corporation | ドリル |
US7455485B2 (en) * | 2005-08-31 | 2008-11-25 | Robert Bosch Gmbh | Cutout bit for use with rotary tool |
DE102006025294B4 (de) * | 2006-05-31 | 2010-07-22 | Kennametal Inc. | Bohrwerkzeug |
DE102006049096A1 (de) * | 2006-10-13 | 2008-04-17 | Kennametal Inc. | Bohrerspitze für ein Bohrwerkzeug |
WO2008046520A1 (de) * | 2006-10-13 | 2008-04-24 | Kennametal Inc. | Bohrerspitze für ein bohrwerkzeug |
US7950880B2 (en) * | 2006-10-18 | 2011-05-31 | Kennametal Inc. | Spiral flute tap |
DE102008023856A1 (de) * | 2008-05-16 | 2009-11-19 | Gühring Ohg | Mehrschneidiges Vollhartmetall-Bohrwerkzeug |
DE102008028060A1 (de) * | 2008-06-12 | 2009-12-17 | Kennametal Inc. | Bohrer |
US8807889B2 (en) * | 2009-12-29 | 2014-08-19 | Kennametal Inc. | Rotary cutting tool having sealed margins and method of making same |
US20110176879A1 (en) * | 2010-01-20 | 2011-07-21 | Cornelis Roelof Jonker | Superhard body, tool and method for making same |
GB201002375D0 (en) | 2010-02-12 | 2010-03-31 | Element Six Production Pty Ltd | A superhard tip, method for making same and tool comprising same |
GB201015541D0 (en) | 2010-09-17 | 2010-10-27 | Element Six Ltd | Twist drill assembly |
CN102922010B (zh) * | 2012-11-27 | 2014-09-17 | 西安工业大学 | 一种自润滑麻花钻及其加工方法 |
WO2015104732A1 (ja) * | 2014-01-07 | 2015-07-16 | 三菱電機株式会社 | エンドミル |
JP6747791B2 (ja) * | 2015-08-31 | 2020-08-26 | 株式会社Subaru | ドリル及び被穿孔品の製造方法 |
DE102015222491B4 (de) * | 2015-11-13 | 2023-03-23 | Kennametal Inc. | Schneidwerkzeug und Verfahren zu dessen Herstellung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US61208A (en) * | 1867-01-15 | kasson | ||
DE2144217B2 (de) * | 1971-08-31 | 1974-04-25 | R. Stock Ag, 1000 Berlin | Spiralbohrer mit einer besonders weiten, offenen Nutenform |
GB1419624A (en) * | 1972-03-21 | 1975-12-31 | Flower J W | Drills for use in drilling and the like operations |
GB1509912A (en) * | 1974-05-17 | 1978-05-04 | Osborn Mushet Tools Ltd | Twist drills |
SU622588A1 (ru) * | 1975-07-09 | 1978-09-05 | Предприятие П/Я В-8772 | Металлорежущий инструмент |
JPS5472587A (en) * | 1977-11-19 | 1979-06-11 | Sumitomo Electric Ind Ltd | Method of producing tool made of tool steel coatd with hard material |
JPS5621711A (en) * | 1979-07-24 | 1981-02-28 | Sumitomo Electric Ind Ltd | Drilling tool |
US4442169A (en) * | 1982-01-28 | 1984-04-10 | General Electric Company | Multiple coated cutting tool and method for producing same |
EP0118431A1 (en) * | 1982-09-07 | 1984-09-19 | Micro International | Micro drill |
SE8300910L (sv) * | 1983-02-18 | 1984-08-19 | Santrade Ltd | Sammansatt kropp bestaende av ett substrat belagt med hart, slitstarkt ytskikt |
CA1233347A (en) * | 1983-07-21 | 1988-03-01 | John A. Bunting | Printed circuit board drill and method of manufacture |
-
1986
- 1986-06-23 JP JP1986095820U patent/JPS634211U/ja active Pending
- 1986-08-11 US US06/895,177 patent/US4744705A/en not_active Expired - Fee Related
- 1986-08-20 DE DE19863628262 patent/DE3628262A1/de not_active Ceased
- 1986-09-10 KR KR2019860014014U patent/KR900003547Y1/ko not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0460606U (ja) * | 1990-09-28 | 1992-05-25 | ||
JP2001341015A (ja) * | 2000-03-31 | 2001-12-11 | Hitachi Tool Engineering Ltd | ステンレス切削用ツイストドリル |
JP2004512968A (ja) * | 2000-10-05 | 2004-04-30 | ケンナメタル インコーポレイテッド | 切削工具とこの切削工具を製造する方法及び装置 |
JP2008296300A (ja) * | 2007-05-30 | 2008-12-11 | Tungaloy Corp | プリント配線板用ドリル |
JP2020515297A (ja) * | 2017-03-29 | 2020-05-28 | デンツプライ シロナ インコーポレイテッド | 放物線器具 |
Also Published As
Publication number | Publication date |
---|---|
KR880000498U (ko) | 1988-02-19 |
KR900003547Y1 (ko) | 1990-04-28 |
DE3628262A1 (de) | 1988-01-14 |
US4744705A (en) | 1988-05-17 |
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