DE2938715A1 - Metal drill for deep holes - has hollow shank carrying drill bit, with spiral flutes and chip breaker groove - Google Patents

Metal drill for deep holes - has hollow shank carrying drill bit, with spiral flutes and chip breaker groove

Info

Publication number
DE2938715A1
DE2938715A1 DE19792938715 DE2938715A DE2938715A1 DE 2938715 A1 DE2938715 A1 DE 2938715A1 DE 19792938715 DE19792938715 DE 19792938715 DE 2938715 A DE2938715 A DE 2938715A DE 2938715 A1 DE2938715 A1 DE 2938715A1
Authority
DE
Germany
Prior art keywords
drill
drill bit
chip breaker
deep holes
hollow shank
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.)
Withdrawn
Application number
DE19792938715
Other languages
German (de)
Inventor
Peter Keil
Ullrich Dipl Ing Spevacek
Norbert Dittmann
Armin Eisermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kombinat Polygraph Werner Lamberz VEB
Polygraph Leipzig Kombinat Veb
Original Assignee
Kombinat Polygraph Werner Lamberz VEB
Polygraph Leipzig Kombinat Veb
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
Priority to DD20894978A priority Critical patent/DD140013A1/en
Application filed by Kombinat Polygraph Werner Lamberz VEB, Polygraph Leipzig Kombinat Veb filed Critical Kombinat Polygraph Werner Lamberz VEB
Publication of DE2938715A1 publication Critical patent/DE2938715A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005Cylindrical shanks of tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/14Configuration of the cutting part, i.e. the main cutting edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/18Configuration of the drill point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/24Overall form of drilling tools
    • B23B2251/241Cross sections of the diameter of the drill

Abstract

A drill for deep holes has a hollow shank (1) which serves to supply the drill bit (2) with cutting fluid. The drill shank, which is smaller than the drill bit, runs in a guide bush (3) and has a hexagonal flange (4) to facilitate fitting to the spindle of the drilling machine. The drill bit has spiral flutes with a positive angle and its length is about 1.5 times its dia. The cutting edges have chip breaker grooves and there is a small hole (7) which connects the base of the flute with the bore (9) of the shank.
DE19792938715 1978-11-08 1979-09-25 Metal drill for deep holes - has hollow shank carrying drill bit, with spiral flutes and chip breaker groove Withdrawn DE2938715A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DD20894978A DD140013A1 (en) 1978-11-08 1978-11-08 Tieflochbohrwerkzeug

Publications (1)

Publication Number Publication Date
DE2938715A1 true DE2938715A1 (en) 1980-05-22

Family

ID=5515218

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792938715 Withdrawn DE2938715A1 (en) 1978-11-08 1979-09-25 Metal drill for deep holes - has hollow shank carrying drill bit, with spiral flutes and chip breaker groove

Country Status (3)

Country Link
DD (1) DD140013A1 (en)
DE (1) DE2938715A1 (en)
SE (1) SE7909177L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753627B2 (en) * 2003-04-04 2010-07-13 Tbt Tiefbohrtechnik Gmbh & Co. Single-lip drill and method for the production thereof
DE102009012938A1 (en) * 2009-03-12 2010-09-23 Kennametal Inc. Cutting tool for deep hole boring, has cylindrical shaft and shaft end with cut part in front side, and sleeve mounted at shaft in longitudinally-movable manner, where inner diameter of sleeve is slightly larger than outer diameter of shaft
CN104368848A (en) * 2014-11-10 2015-02-25 苏州阿诺精密切削技术股份有限公司 Reaming auger bit for continuous platform

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664567A (en) * 1986-02-06 1987-05-12 Bijur Lubricating Corp. Drill bit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753627B2 (en) * 2003-04-04 2010-07-13 Tbt Tiefbohrtechnik Gmbh & Co. Single-lip drill and method for the production thereof
DE102009012938A1 (en) * 2009-03-12 2010-09-23 Kennametal Inc. Cutting tool for deep hole boring, has cylindrical shaft and shaft end with cut part in front side, and sleeve mounted at shaft in longitudinally-movable manner, where inner diameter of sleeve is slightly larger than outer diameter of shaft
CN104368848A (en) * 2014-11-10 2015-02-25 苏州阿诺精密切削技术股份有限公司 Reaming auger bit for continuous platform

Also Published As

Publication number Publication date
SE7909177L (en) 1980-05-09
DD140013A1 (en) 1980-02-06

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee