DE2910299A1 - Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole - Google Patents

Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole

Info

Publication number
DE2910299A1
DE2910299A1 DE19792910299 DE2910299A DE2910299A1 DE 2910299 A1 DE2910299 A1 DE 2910299A1 DE 19792910299 DE19792910299 DE 19792910299 DE 2910299 A DE2910299 A DE 2910299A DE 2910299 A1 DE2910299 A1 DE 2910299A1
Authority
DE
Germany
Prior art keywords
cutting edges
drilling
holes
boring tool
face
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Withdrawn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
DE19792910299
Other languages
German (de)
Inventor
Kamal Samy Abou
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19792910299 priority Critical patent/DE2910299A1/en
Publication of DE2910299A1 publication Critical patent/DE2910299A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • 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)

Abstract

A boring tool has a shank (4) with a central bore (3). The end face of the tool has a number of cutting edges or inserts (1) whilst the lower part of the shank has flutes for removing the metal chips. This boring tool is intended for drilling through holes and only cuts out a metal shell with the core of the material removed from the workpiece going into the central hole (3) of the tool. There is thus less wear on the cutting edges and in addn. less power is needed to drill holes compared with conventional drills.

Description

Durchbohrer für MetallePunches for metals

Patentbeschreibung Der Gegenstand der Erfindung betrifft einen Durchbohrer,der nur für Durchbohrarbeiten geeignet ist, . der von unten mit eigener Schneide oder Schneidplatten'und der von innen hohl und von außen mit spiralen Laufbahnen für Späne versehen ist.Patent Description The object of the invention relates to a piercer which is only suitable for drilling work,. the one from below with its own cutting edge or Cutting plates' and hollow on the inside and spiral raceways on the outside for Is provided with chips.

Um eine Bohrung oder ein Loch durchzubohren,muß man bei den jetzigem Bohrern das ganze Material ausbohren. Dies hat zwei Nachteile,erstens die Schneide der Bohrer werden zu schnell verschliessen,und zeitens wird mehr Leistung dazu benötigt, weil die verbrauchte Leistung mit dem ausgebohrten Volumen proportional ist.In order to drill a hole or a hole, you have to go with the current one Drills drill out all the material. This has two disadvantages, first the cutting edge the drills are worn out too quickly, and at times more power is required because the power consumed is proportional to the volume drilled out.

Fig.la,b zeigt eine mögliche Gestaltung solcher Durchbohrer, zwei oder mehr Schneide oder Schneidplatten 1 spirale Laufbahnen für Späne 2,innen Hohlraum 3, und Schaft 4* Fig. lc zeigt ein. Beispiel beim Bohren einer Bohrung mit diesem Durchbohrer . Mit einem Durchmesser D2 wird nur ein Ring von der Bohrung durchgebohrt. Dabei ist die gebohrte Fläche viel kleiner, als wenn man das ganze Material der Bohrung durchgebohrt hätte.Fig.la, b shows a possible design of such a piercer, two or more cutting edge or cutting inserts 1 spiral raceways for chips 2, interior cavity 3, and shaft 4 * Fig. Lc shows a. Example when drilling a hole with this Cannula. With a diameter of D2, only one ring is drilled through from the hole. The drilled area is much smaller than if you were to use all of the material Would have drilled through the hole.

Claims (1)

Patentanspruch: Durchbohrer Für Metalle d a d u r c h g e k e n n z e i c h n e t, daß der Bohrer mit zwei oder mehr Schneide oder Schneidplatten 1 an der unteren Seite, von innen mit einem Hohlraum 3, von außen mit spirals Laufbahnen für Späne 2, und oben mit einem Schaft 4, versehen ist. Claim: Piercer for metals notices that the drill has two or more cutting edges or inserts 1 on the lower side, on the inside with a cavity 3, on the outside with spiral raceways for chips 2, and is provided with a shaft 4 at the top.
DE19792910299 1979-03-16 1979-03-16 Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole Withdrawn DE2910299A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792910299 DE2910299A1 (en) 1979-03-16 1979-03-16 Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792910299 DE2910299A1 (en) 1979-03-16 1979-03-16 Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole

Publications (1)

Publication Number Publication Date
DE2910299A1 true DE2910299A1 (en) 1980-09-25

Family

ID=6065534

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792910299 Withdrawn DE2910299A1 (en) 1979-03-16 1979-03-16 Boring tool for drilling through holes - has cutting edges on end face and hollow shank leaving solid core which drops out on completion of hole

Country Status (1)

Country Link
DE (1) DE2910299A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538944A (en) * 1981-09-21 1985-09-03 Hougen Everett D Annular cutter
USRE33440E (en) * 1981-09-21 1990-11-13 Annular cutter
US5217334A (en) * 1990-08-22 1993-06-08 Nitto Kohki Co., Ltd. Annular hole cutter
US5676501A (en) * 1995-04-27 1997-10-14 Hawera Probst Gmbh Drill bit tube
US5823720A (en) * 1996-02-16 1998-10-20 Bitmoore High precision cutting tools

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538944A (en) * 1981-09-21 1985-09-03 Hougen Everett D Annular cutter
USRE33440E (en) * 1981-09-21 1990-11-13 Annular cutter
US5217334A (en) * 1990-08-22 1993-06-08 Nitto Kohki Co., Ltd. Annular hole cutter
US5676501A (en) * 1995-04-27 1997-10-14 Hawera Probst Gmbh Drill bit tube
US5823720A (en) * 1996-02-16 1998-10-20 Bitmoore High precision cutting tools

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Legal Events

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