SE8605407D0 - BOHRWERKZEUG - Google Patents

BOHRWERKZEUG

Info

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
Application number
SE8605407A
Other languages
Swedish (sv)
Other versions
SE465409B (en
SE8605407L (en
Inventor
W Mundlein
Original Assignee
Komet Stahlhalter Werkzeug
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 Komet Stahlhalter Werkzeug filed Critical Komet Stahlhalter Werkzeug
Publication of SE8605407D0 publication Critical patent/SE8605407D0/en
Publication of SE8605407L publication Critical patent/SE8605407L/en
Publication of SE465409B publication Critical patent/SE465409B/en

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

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>
SE8605407A 1985-12-21 1986-12-16 Drilling Tools SE465409B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8536123U DE8536123U1 (en) 1985-12-21 1985-12-21

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046902A (en) * 1988-10-21 1991-09-10 Zubov Alexei V 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
US6030155A (en) * 1996-02-29 2000-02-29 Komet Praezisonswerkzeuge Robert Breuning Gmbh Drilling tools for machine tool 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
DE69817276T2 (en) 1997-05-29 2004-02-19 Black & Decker Inc., Newark twist drill
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
KR101225215B1 (en) * 2004-03-12 2013-01-22 반 프랑켄휘첸 비브이 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
JPWO2009122937A1 (en) * 2008-03-31 2011-07-28 住友電工ハードメタル株式会社 End mill
JP2010110847A (en) * 2008-11-05 2010-05-20 Mitsubishi Materials Corp Insert type drill
EP2502709B1 (en) 2011-03-22 2017-02-01 Black & Decker Inc. Chisels
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
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
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit
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
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
EP3401042B1 (en) * 2017-05-11 2020-07-22 Sandvik Intellectual Property AB Drill body and drill
EP3401043B1 (en) * 2017-05-11 2020-03-25 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)

* Cited by examiner, † Cited by third party
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
DE2730418B1 (en) * 1977-07-06 1979-01-11 Komet Stahlhalter Werkzeug Drilling tool for holes 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

Also Published As

Publication number Publication date
DE3545586A1 (en) 1987-07-02
CH671353A5 (en) 1989-08-31
DE8536123U1 (en) 1987-04-16
JPS62157707A (en) 1987-07-13
FR2591921B1 (en) 1990-08-10
DE3545586C2 (en) 1989-08-10
ATA308686A (en) 1991-01-15
SE465409B (en) 1991-09-09
GB8630420D0 (en) 1987-01-28
JP2504976B2 (en) 1996-06-05
IT1213551B (en) 1989-12-20
FR2591921A1 (en) 1987-06-26
GB2184373A (en) 1987-06-24
AT393098B (en) 1991-08-12
IT8622578A0 (en) 1986-12-04
SE8605407L (en) 1987-06-22
GB2184373B (en) 1989-10-18

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