SE8605407D0 - BOHRWERKZEUG - Google Patents
BOHRWERKZEUGInfo
- Publication number
- SE8605407D0 SE8605407D0 SE8605407A SE8605407A SE8605407D0 SE 8605407 D0 SE8605407 D0 SE 8605407D0 SE 8605407 A SE8605407 A SE 8605407A SE 8605407 A SE8605407 A SE 8605407A SE 8605407 D0 SE8605407 D0 SE 8605407D0
- Authority
- SE
- Sweden
- Prior art keywords
- flutes
- cutting
- rear end
- transitional portion
- cutting portion
- 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
-
- 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
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Milling Processes (AREA)
Abstract
The drilling tool comprises a clamping shank, a short transitional portion 4 adjoining same and a substantially cylindrical cutting portion (3) which has two diametrally oppositely disposed flutes (8,9) which turn through less than 360 DEG , two lands (10) which remain between the flutes and at its front end two replaceable cutting bits (6, 7) which are arranged in mutually displaced relationship through about 180 DEG in the peripheral direction, at different radial spacings from the drill axis (A). The flutes (8, 9) are of decreasing depth, beginning at the front end of the transitional portion to the rear end thereof, and run out into the peripheral surface of the transitional portion at the rear end thereof. The pitch angle of the two flutes (8, 9) increases from the front end of the cutting portion (3) to the rear end thereof. In the rear region of the cutting portion (3) the pitch angle ( beta 1) is so selected that at the front end of the transitional portion, where the flutes (8, 9) are still of their full depth, the centre line of each of the two lands (10), which centre line passes through the cross-section at that point (connecting cross-section) of the cutting portion (3), extends substantially in the direction of the overall resultant of the cutting forces acting on the cutting bits (6, 7). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8536123U DE8536123U1 (en) | 1985-12-21 | 1985-12-21 | Drilling tool |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8605407D0 true SE8605407D0 (en) | 1986-12-16 |
SE8605407L SE8605407L (en) | 1987-06-22 |
SE465409B SE465409B (en) | 1991-09-09 |
Family
ID=6788491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8605407A SE465409B (en) | 1985-12-21 | 1986-12-16 | Drilling Tools |
Country Status (8)
Country | Link |
---|---|
JP (1) | JP2504976B2 (en) |
AT (1) | AT393098B (en) |
CH (1) | CH671353A5 (en) |
DE (2) | DE3545586A1 (en) |
FR (1) | FR2591921B1 (en) |
GB (1) | GB2184373B (en) |
IT (1) | IT1213551B (en) |
SE (1) | SE465409B (en) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3891420T1 (en) * | 1988-10-21 | 1990-11-22 | Aleksej Vladimirovic Cubkov | SPIRAL DRILL |
DE3842209A1 (en) * | 1988-12-15 | 1990-06-21 | Walter Gmbh Montanwerke | DRILLING TOOL FOR METAL MATERIALS, PLASTICS AND THE LIKE |
GB2233920A (en) * | 1989-07-18 | 1991-01-23 | Sandvik Ltd | Fluted drill |
DE4018043A1 (en) * | 1990-06-06 | 1991-12-12 | Krupp Widia Gmbh | DRILLING TOOL |
DE4231381A1 (en) * | 1992-09-19 | 1994-03-24 | Mitsubishi Materials Corp | drill |
SE501515C2 (en) * | 1993-03-03 | 1995-03-06 | Sandvik Ab | Spiral drill with improved bending stiffness |
JP3164479B2 (en) * | 1994-11-01 | 2001-05-08 | 兼房株式会社 | Rotary drilling tool |
DE19522837A1 (en) * | 1995-06-23 | 1997-01-02 | Beck August Gmbh Co | Drilling tool |
US5704740A (en) * | 1995-06-26 | 1998-01-06 | Walter Ag | Drilling tool, particularly for metallic materials |
DE19602030B4 (en) * | 1996-01-20 | 2007-08-02 | Günther & Co. GmbH | drill |
JPH09277108A (en) * | 1996-02-14 | 1997-10-28 | Sumitomo Electric Ind Ltd | Drill |
CA2245802C (en) * | 1996-02-29 | 2005-07-26 | Komet Prazisionswerkzeuge Robert Breuning Gmbh | Drilling tool for machine tools and method of producing the same |
US5713736A (en) * | 1996-05-01 | 1998-02-03 | Tulsa Dental Products, L.L.C. | Endodontic dental instrument |
US5816754A (en) * | 1996-11-06 | 1998-10-06 | Greenfield Industries | Elongated drill with replaceable cutting inserts |
DK0893185T3 (en) * | 1997-05-29 | 2003-09-08 | Black & Decker Inc | Twist |
DE19841978C2 (en) * | 1998-09-14 | 2000-11-23 | Heller Dinklage Gmbh Geb | drill |
DE10047332A1 (en) * | 2000-09-25 | 2002-04-11 | Hilti Ag | Tool with helix |
EP1725358B1 (en) * | 2004-03-12 | 2019-07-10 | Sandvik Intellectual Property AB | Cutting tool and method for cutting material |
DE102006027552B4 (en) * | 2006-06-14 | 2011-06-01 | Audi Ag | Drilling tool, in particular for metallic materials |
JP2008272856A (en) * | 2007-04-26 | 2008-11-13 | Osg Corp | Spiral tap |
DE102007042280A1 (en) * | 2007-09-06 | 2009-03-12 | Komet Group Holding Gmbh | Drilling tool for machine tools and method for its production |
DE112009000013C5 (en) * | 2008-03-31 | 2018-08-09 | Sumitomo Electric Hardmetal Corp. | end mill |
JP2010110847A (en) * | 2008-11-05 | 2010-05-20 | Mitsubishi Materials Corp | Insert type drill |
EP2502710B1 (en) | 2011-03-22 | 2020-04-22 | Black & Decker Inc. | Chisels |
CN102145401A (en) * | 2011-04-27 | 2011-08-10 | 江苏飞达钻头股份有限公司 | Multi-blade tip twist drill with high cutting performance |
CN102145400A (en) * | 2011-04-27 | 2011-08-10 | 江苏飞达钻头股份有限公司 | Twist drill with changeable helical angles |
USD734792S1 (en) | 2013-03-15 | 2015-07-21 | Black & Decker Inc. | Drill bit |
USD737875S1 (en) | 2013-03-15 | 2015-09-01 | Black & Decker Inc. | Drill bit |
US9333564B2 (en) | 2013-03-15 | 2016-05-10 | Black & Decker Inc. | Drill bit |
DE102014108219B4 (en) | 2014-06-12 | 2020-12-17 | Kennametal Inc. | Rotary tool and method for producing a rotary tool |
IL246227B (en) * | 2016-06-15 | 2021-07-29 | Hanita Metal Works Ltd | Fluted cutting tool configuration and method therefor |
EP3401043B1 (en) * | 2017-05-11 | 2020-03-25 | Sandvik Intellectual Property AB | Drill body and drill |
EP3401042B1 (en) * | 2017-05-11 | 2020-07-22 | Sandvik Intellectual Property AB | Drill body and drill |
GB2574652A (en) | 2018-06-14 | 2019-12-18 | Black & Decker Inc | Drilling tool |
CN112077370A (en) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | Indexable drill insert |
CN116213781B (en) * | 2023-05-06 | 2023-07-14 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE159437C (en) * | ||||
GB936411A (en) * | 1960-09-30 | 1963-09-11 | Stalker Drill Works Ltd | Improvements in and relating to drills |
DE2730418C2 (en) * | 1977-07-06 | 1988-05-26 | Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim | Drilling tool for drilling in solid metal material |
DE7735147U1 (en) * | 1977-11-16 | 1979-04-26 | Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim | DRILLING TOOL FOR DRILLING HOLES IN SOLID METAL OF WORKPIECES |
DE7830277U1 (en) * | 1978-10-11 | 1980-03-20 | Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim | DRILLING TOOL FOR HOLES IN SOLID METAL MATERIAL |
DE2902750A1 (en) * | 1979-01-25 | 1980-08-07 | Motoren Turbinen Union | Boring tool for difficult to machine metals - has cutting edges in form of circular discs with tapered edges |
DD211978A1 (en) * | 1982-12-13 | 1984-08-01 | Koenigsee Werkzeugfabrik | SPIRAL DRILL WITH INSERTS |
-
1985
- 1985-12-21 DE DE19853545586 patent/DE3545586A1/en active Granted
- 1985-12-21 DE DE8536123U patent/DE8536123U1/en not_active Expired
-
1986
- 1986-11-19 AT AT3086/86A patent/AT393098B/en not_active IP Right Cessation
- 1986-11-20 CH CH4653/86A patent/CH671353A5/de not_active IP Right Cessation
- 1986-12-04 IT IT8622578A patent/IT1213551B/en active
- 1986-12-16 SE SE8605407A patent/SE465409B/en not_active IP Right Cessation
- 1986-12-17 FR FR868617695A patent/FR2591921B1/en not_active Expired - Fee Related
- 1986-12-19 GB GB8630420A patent/GB2184373B/en not_active Expired
- 1986-12-22 JP JP61307594A patent/JP2504976B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT8622578A0 (en) | 1986-12-04 |
DE8536123U1 (en) | 1987-04-16 |
SE465409B (en) | 1991-09-09 |
FR2591921A1 (en) | 1987-06-26 |
JPS62157707A (en) | 1987-07-13 |
GB2184373A (en) | 1987-06-24 |
ATA308686A (en) | 1991-01-15 |
SE8605407L (en) | 1987-06-22 |
CH671353A5 (en) | 1989-08-31 |
GB2184373B (en) | 1989-10-18 |
DE3545586C2 (en) | 1989-08-10 |
AT393098B (en) | 1991-08-12 |
GB8630420D0 (en) | 1987-01-28 |
JP2504976B2 (en) | 1996-06-05 |
FR2591921B1 (en) | 1990-08-10 |
IT1213551B (en) | 1989-12-20 |
DE3545586A1 (en) | 1987-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8605407-9 Format of ref document f/p: F |
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NUG | Patent has lapsed |