EP1319483A2 - Drill with cylindrical head or similar tool with hard metal cutters - Google Patents

Drill with cylindrical head or similar tool with hard metal cutters Download PDF

Info

Publication number
EP1319483A2
EP1319483A2 EP02027397A EP02027397A EP1319483A2 EP 1319483 A2 EP1319483 A2 EP 1319483A2 EP 02027397 A EP02027397 A EP 02027397A EP 02027397 A EP02027397 A EP 02027397A EP 1319483 A2 EP1319483 A2 EP 1319483A2
Authority
EP
European Patent Office
Prior art keywords
head
shaft
drill
hard metal
support part
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.)
Granted
Application number
EP02027397A
Other languages
German (de)
French (fr)
Other versions
EP1319483A3 (en
EP1319483B1 (en
Inventor
Harald Dr. Feld
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.)
Tigra Hartstoff GmbH
Original Assignee
Tigra Hartstoff GmbH
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 Tigra Hartstoff GmbH filed Critical Tigra Hartstoff GmbH
Publication of EP1319483A2 publication Critical patent/EP1319483A2/en
Publication of EP1319483A3 publication Critical patent/EP1319483A3/en
Application granted granted Critical
Publication of EP1319483B1 publication Critical patent/EP1319483B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G15/00—Boring or turning tools; Augers
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00—Cutting by use of rotating axially moving tool
    • Y10S408/713—Tool having detachable 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
    • Y10T408/78—Tool of specific diverse material
    • 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
    • Y10T408/907—Tool or Tool with support including detailed shank
    • 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
    • Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support

Definitions

  • the invention relates to a cylinder head drill with carbide cutting edges.
  • Carbide cutting are desirable or necessary because drilling e.g. in the manufacture of Furniture parts, usually made in resin-bonded particle board, so that Tools made of tool steels without carbide cutting are only unsatisfactory Reach service life.
  • the object of the invention is therefore a cylinder head drill or a similar tool To be trained so that it is inexpensive in quantities with the least possible effort is producible, but achieves the necessary precision.
  • the concept according to the invention thus consists of the entire head of the cylinder head drill or tool made of hard metal, namely by injection molding using hard metal powder mixed with a wax as a plasticizer, and sintering the injection molded green blank while the stem is molded Head support part is made of tool steel.
  • the carbide head and the Head support part of the shaft are with interlocking interlocking elements trained both centering the head with respect to the shaft when Placing the head on the shaft as well as a positive connection in the circumferential direction manufacture so that on the one hand also the correct rotational position of the head with respect to the shaft is ensured during assembly as well as when using the cylinder head drill the head is positively carried along by the shaft.
  • the connection of head and shaft by soldering or welding can then be done without any special Effort.
  • the cylinder head drill according to the invention consists of a shaft 1 (FIG. 1) and a head 2 placed thereon (FIGS. 2 and 3).
  • the shaft 1 consists of a shaft part 11 with a molded-on front Head support part 12, which comprises two radial arms 13, which are approximately disc-shaped.
  • the head support part 12 has two axial surface projections on its upper end face 14 15, namely one on each radial arm 13.
  • the head support part 12 instructs a central countersink 16 on its end face 14.
  • the shaft part 11 is cylindrical in the usual way and serves to clamp the Cylinder head drill.
  • the shaft 1 is made entirely of tool steel.
  • the head 2 which is made in one piece and overall from hard metal is, namely by injection molding with a serving as a plasticizer and binder Wax mixed carbide powder, and sintering the blank thus produced, whereby the wax is driven out completely.
  • the head 2 has a central drilling centering tip 21 on its upper side, further two of them opposite approximately radially extending main cutting edges 22 and two to each roughly 23 pre-cut for a circumferential pre-cut on.
  • This cutting configuration is basically common in itself.
  • the head On its underside (Fig. 3), the head has a central pin 24 which in the central countersink 16 of the shaft 1 fits.
  • the head 2 On the undersides of it two diametrically opposed disk sector areas, on which the Cutting edges 22, 23 are formed, each with a recess 25 in the form of a flat Provide depression. These shallow depressions 25 are each exactly complementary to the surface projections 15 of the head support part 12 of the shaft 1 are formed.
  • the head 2 can thus be placed on the head support part 12 of the shaft 1, the Pin 24 engages on the underside of the head as a centering pin in the countersink 16 of the shaft and the surface projections 15 on the head support part 12 of the shaft 1 into the flat ones Engage recesses 25 on the underside of the head.
  • This will refer to the head the shaft is positioned exactly in the center and in the correct rotational position and can be done in a simple Process to be welded or soldered to the shaft without the need for devices necessary to establish and maintain the exact relative positioning are.
  • this positive connection enables the transmission of the working torque from the shaft to the head so that this power transmission does not have the Solder or weld connection must be transferred.

Abstract

The boring-out tool has a shaft with a head-carrier part and a head (2) of hard metal. The shaft and the head are made as separate parts, with interacting positive and non-positive connection elements (e.g. 24) to center them and to position them correctly in the rotary sense relative to each other. The head is entirely sintered from hard metal.

Description

Die Erfindung betrifft einen Zylinderkopfbohrer mit Hartmetallschneiden. Hartmetallschneiden sind wünschenswert bzw. erforderlich, da Bohrungen, z.B. bei der Fertigung von Möbelteilen, meist in kunstharzgebundenen Pressspanplatten hergestellt werden, so dass Werkzeuge aus Werkzeugstählen ohne Hartmetallschneiden nur eine unbefriedigende Standzeit erreichen.The invention relates to a cylinder head drill with carbide cutting edges. Carbide cutting are desirable or necessary because drilling e.g. in the manufacture of Furniture parts, usually made in resin-bonded particle board, so that Tools made of tool steels without carbide cutting are only unsatisfactory Reach service life.

Die Ausbildung eines Zylinderkopfbohrers mit Hartmetallschneiden ist allerdings eine aufwendige Angelegenheit, da sowohl eine Bohrspitze erforderlich ist, als auch sich über die ganze Stirnfläche erstreckende sowie auch am Umfang wirkende Schneiden notwendig sind, um saubere zylindrische Senkbohrungen herzustellen.However, the formation of a cylinder head drill with carbide cutting edges is one complex matter, since both a drill bit is required and over cutting edges extending over the entire end face and also acting on the circumference are necessary to produce clean cylindrical counterbores.

Aufgabe der Erfindung ist es daher, einen Zylinderkopfbohrer oder ein ähnliches Werkzeug so auszubilden, dass er in Stückzahlen mit möglichst geringem Aufwand kostengünstig herstellbar ist, aber die notwendige Präzision erreicht.The object of the invention is therefore a cylinder head drill or a similar tool To be trained so that it is inexpensive in quantities with the least possible effort is producible, but achieves the necessary precision.

Diese Aufgabe wird gemäß der Erfindung durch die im Anspruch 1 angegebene Anordnung gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved according to the invention by the arrangement specified in claim 1 solved. Advantageous embodiments of the invention are the subject of the dependent claims.

Das erfindungsgemäße Konzept besteht also darin, den gesamten Kopf des Zylinderkopfbohrers bzw. Werkzeugs aus Hartmetall herzustellen, und zwar im Spritzgussverfahren unter Verwendung von mit einem Wachs als Plastifizierer versetztem Hartmetallpulver, und Sintern des spritzgegossenen grünen Rohlings, während der Schaft mit einem angeformten Kopfträgerteil aus Werkzeugstahl hergestellt wird. Der Hartmetallkopf und der Kopfträgerteil des Schafts sind dabei mit miteinander zusammenwirkenden Formschlusselementen ausgebildet, die sowohl ein Zentrieren des Kopfs mit Bezug auf den Schaft beim Aufsetzen des Kopfs auf den Schaft als auch eine Formschlussverbindung in Umfangsrichtung herstellen, so dass zum einen auch die richtige Drehposition des Kopfs mit Bezug auf den Schaft beim Zusammensetzen sichergestellt wird als auch im Einsatz des Zylinderkopfbohrers eine formschlüssige Mitnahme des Kopfs durch den Schaft erfolgt. Die Verbindung von Kopf und Schaft durch Löten oder Schweißen kann dann ohne besonderen Aufwand erfolgen.The concept according to the invention thus consists of the entire head of the cylinder head drill or tool made of hard metal, namely by injection molding using hard metal powder mixed with a wax as a plasticizer, and sintering the injection molded green blank while the stem is molded Head support part is made of tool steel. The carbide head and the Head support part of the shaft are with interlocking interlocking elements trained both centering the head with respect to the shaft when Placing the head on the shaft as well as a positive connection in the circumferential direction manufacture so that on the one hand also the correct rotational position of the head with respect to the shaft is ensured during assembly as well as when using the cylinder head drill the head is positively carried along by the shaft. The connection of head and shaft by soldering or welding can then be done without any special Effort.

Ein Ausführungsbeispiel der Erfindung ist in den anliegenden Zeichnungen dargestellt und wird im folgenden mehr im einzelnen beschrieben. In den Zeichnungen zeigt:

Fig. 1
den Schaft mit Kopfträgerteil in perspektivi-scher Darstellung,
Fig. 2
den Kopf in perspektivischer Darstellung auf seine Oberseite gesehen, und
Fig. 3
den Kopf in perspektivischer Darstellung auf eine Unterseite gesehen.
An embodiment of the invention is shown in the accompanying drawings and will be described in more detail below. In the drawings:
Fig. 1
the shaft with the head support part in a perspective view,
Fig. 2
the head seen in perspective on its top, and
Fig. 3
the head seen in perspective on a bottom.

Der erfindungsgemäße Zylinderkopfbohrer besteht aus einem Schaft 1 (Fig. 1) und einem darauf aufgesetzten Kopf 2 (Fig. 2 und 3).The cylinder head drill according to the invention consists of a shaft 1 (FIG. 1) and a head 2 placed thereon (FIGS. 2 and 3).

Wie Fig. 1 zeigt, besteht der Schaft 1 aus einem Schaftteil 11 mit vorne angeformtem Kopfträgerteil 12, der zwei etwa scheibensektorartig ausgebildete Radialarme 13 umfaßt. Der Kopfträgerteil 12 weist an seiner oberen Stirnfläche 14 zwei axiale Flächenvorsprünge 15 auf, nämlich einen an jedem Radialarm 13. Außerdem weist der Kopfträgerteil 12 an seiner Stirnfläche 14 eine zentrische Ansenkung 16 auf. As shown in FIG. 1, the shaft 1 consists of a shaft part 11 with a molded-on front Head support part 12, which comprises two radial arms 13, which are approximately disc-shaped. The head support part 12 has two axial surface projections on its upper end face 14 15, namely one on each radial arm 13. In addition, the head support part 12 instructs a central countersink 16 on its end face 14.

Der Schaftteil 11 ist in üblicher Weise zylindrisch geformt und dient zum Einspannen des Zylinderkopfbohrers.The shaft part 11 is cylindrical in the usual way and serves to clamp the Cylinder head drill.

Der Schaft 1 ist insgesamt aus Werkzeugstahl gefertigt.The shaft 1 is made entirely of tool steel.

Die Fig. 2 und 3 zeigen den Kopf 2, der einstückig und insgesamt aus Hartmetall hergestellt ist, nämlich durch Spritzgießen aus mit einem als Plastifizierer und Bindemittel dienenden Wachs vermischtem Hartmetallpulver, und Sintern des so hergestellten Rohlings, wobei das Wachs vollständig ausgetrieben wird.2 and 3 show the head 2, which is made in one piece and overall from hard metal is, namely by injection molding with a serving as a plasticizer and binder Wax mixed carbide powder, and sintering the blank thus produced, whereby the wax is driven out completely.

Der Kopf 2 weist an seiner Oberseite eine mittige Bohrzentrierspitze 21, weiter zwei davon gegenüberliegend etwa radial verlaufende Hauptschneiden 22 und zwei dazu jeweils um etwa 90 Grad versetzt angeordnete Vorschneiden 23 für einen umfangsmäßigen Vorschnitt auf. Diese Schneidenkonfiguration ist grundsätzlich an sich üblich.The head 2 has a central drilling centering tip 21 on its upper side, further two of them opposite approximately radially extending main cutting edges 22 and two to each roughly 23 pre-cut for a circumferential pre-cut on. This cutting configuration is basically common in itself.

An seiner Unterseite (Fig. 3) weist der Kopf einen zentrischen Zapfen 24 auf, der in die zentrische Ansenkung 16 des Schafts 1 paßt. Weiter ist der Kopf 2 an den Unterseiten seiner beiden diametral gegenüberliegenden Plattensektorbereiche, an denen oberseitig die Schneiden 22, 23 gebildet sind, mit jeweils einer Aussparung 25 in Gestalt einer flachen Vertiefung versehen. Diese flachen Vertiefungen 25 sind jeweils genau komplementär zu den Flächenvorsprüngen 15 des Kopfträgerteils 12 des Schafts 1 ausgebildet.On its underside (Fig. 3), the head has a central pin 24 which in the central countersink 16 of the shaft 1 fits. Next is the head 2 on the undersides of it two diametrically opposed disk sector areas, on which the Cutting edges 22, 23 are formed, each with a recess 25 in the form of a flat Provide depression. These shallow depressions 25 are each exactly complementary to the surface projections 15 of the head support part 12 of the shaft 1 are formed.

Der Kopf 2 kann also auf den Kopfträgerteil 12 des Schafts 1 aufgesetzt werden, wobei der Zapfen 24 an der Kopfunterseite als Zentrierzapfen in die Ansenkung 16 des Schafts eingreift und die Flächenvorsprünge 15 auf dem Kopfträgerteil 12 des Schafts 1 in die flachen Vertiefungen 25 an der Kopfunterseite eingreifen. Dadurch wird der Kopf mit Bezug auf den Schaft exakt zentrisch und drehpositionsrichtig positioniert und kann in einem einfachen Vorgang mit dem Schaft verschweißt oder verlötet werden, ohne dass dafür Vorrichtungen zum Herstellen und Aufrechterhalten der exakten relativen Positionierung notwendig sind. Außerdem ermöglicht diese Formschlussverbindung die Übertragung des Arbeitsdrehmoments vom Schaft auf den Kopf, so dass diese Kraftübertragung nicht über die Löt- oder Schweißverbindung übertragen werden muß. The head 2 can thus be placed on the head support part 12 of the shaft 1, the Pin 24 engages on the underside of the head as a centering pin in the countersink 16 of the shaft and the surface projections 15 on the head support part 12 of the shaft 1 into the flat ones Engage recesses 25 on the underside of the head. This will refer to the head the shaft is positioned exactly in the center and in the correct rotational position and can be done in a simple Process to be welded or soldered to the shaft without the need for devices necessary to establish and maintain the exact relative positioning are. In addition, this positive connection enables the transmission of the working torque from the shaft to the head so that this power transmission does not have the Solder or weld connection must be transferred.

Es versteht sich, dass hinsichtlich der exakten Form von Kopfträgerteil des Schafts und des Kopfs selbst vielerlei Modifikationen denkbar sind und auch die Konfiguration der miteinander zusammenwirkenden Formschlusselemente im Rahmen des zweckmäßigen relativ beliebig gewählt werden kann.It is understood that with regard to the exact shape of the head support part of the shaft and the Many modifications are conceivable and the configuration of each other interacting form-locking elements in the context of the appropriate relative can be chosen arbitrarily.

Die Anwendung dieses Bauprinzips ist auch nicht auf Zylinderkopfbohrer beschränkt, sondern kann in gleicher Weise bei ähnlichen Schneidwerkzeugen Anwendung finden, die aus einem bohrenden oder fräsenden Kopf und einem Schaft zum Einspannen bestehen.The application of this construction principle is also not limited to cylinder head drills, but rather can be used in the same way for similar cutting tools that are made of a drilling or milling head and a shaft for clamping.

Claims (4)

Zylinderkopfbohrer oder ähnliches Werkzeug, das einen mit Hartmetallschneiden, (22, 23) versehenen Kopf (2) und einen Schaft (1) zum Einspannen aufweist, dadurch gekennzeichnet, dass Schaft (1) und Kopf (2) als gesonderte, stoffschlüssig miteinander verbundene Bauteile ausgebildet sind,
wobei der Kopf (2) vollständig als Sinterkörper aus Hartmetall ausgebildet ist,
dass weiter der Schaft (1) mit einem Kopfträgerteil (12) ausgebildet ist, auf welches der Kopf (2) stirnseitig aufgesetzt ist,
und dass der Kopfträgerteil (12) des Schafts (1) und der Kopf (2) mit miteinander zusammenwirkenden Formschlusselementen (15, 16, 24, 25) versehen sind, die den Kopf mit Bezug auf den Schaft sowohl zentrieren (16, 24) als auch drehpositionsmäßig positionieren (15, 25).Cylinder head drill or similar tool, which has a head (2) provided with hard metal cutting edges (22, 23) and a shaft (1) for clamping, characterized in that the shaft (1) and head (2) are separate, integrally connected components are trained
the head (2) being designed entirely as a sintered body made of hard metal,
that the shaft (1) is formed with a head support part (12), on which the head (2) is placed on the face,
and that the head support part (12) of the shaft (1) and the head (2) are provided with interacting interlocking elements (15, 16, 24, 25) which both center (16, 24) the head with respect to the shaft also position in terms of rotational position (15, 25). Zylinderkopfbohrer bzw. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Formschlußelemente zum Zentrieren einen Zentrierzapfen (24) am einen der Teile Schaft (1) und Kopf (2) und eine Senkbohrung (16) am jeweils anderen Teil aufweisen.Cylinder head drill or tool according to claim 1, characterized in that the form-locking elements for centering have a centering pin (24) on one of the parts shaft (1) and head (2) and a counterbore (16) on the other part. Zylinderkopfbohrer bzw. Werkzeug nach Anspruch 1 oder 2, wobei die Formschlusselemente zur drehpositionsmäßigen Positionierung miteinander zusammenwirkende Flächenvorsprünge 15 und dazu komplementäre flache Vertiefungen (25) an den beiden Teilen Schafft (1) und Kopf (2) aufweisen, die zueinander komplementär ausgebildet sind.Cylinder head drill or tool according to claim 1 or 2, wherein the positive locking elements interacting with each other for positioning in terms of rotational position Surface projections 15 and complementary shallow depressions (25) on the two Share parts (1) and head (2), which are complementary to each other are. Zylinderkopfbohrer bzw. Werkzeug nach Anspruch 3, dadurch gekennzeichnet, dass der Schaftträgerteil (12) des Schafts (1) plattenartige Elemente (13) aufweist, an denen die Flächenvorsprünge (15) gebildet sind, und dass die komplementären flachen Vertiefungen (25) an der Kopfunterseite gebildet sind.Cylinder head drill or tool according to claim 3, characterized in that the shaft support part (12) of the shaft (1) has plate-like elements (13) on which the surface projections (15) are formed, and that the complementary flat recesses (25) on the Underside of the head are formed.
EP02027397A 2001-12-15 2002-12-09 Drill with cylindrical head with hard metal cutters Expired - Lifetime EP1319483B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10161823 2001-12-15
DE10161823A DE10161823A1 (en) 2001-12-15 2001-12-15 Cylinder head drill or similar tool with hard metal cutting

Publications (3)

Publication Number Publication Date
EP1319483A2 true EP1319483A2 (en) 2003-06-18
EP1319483A3 EP1319483A3 (en) 2005-02-02
EP1319483B1 EP1319483B1 (en) 2007-08-08

Family

ID=7709449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027397A Expired - Lifetime EP1319483B1 (en) 2001-12-15 2002-12-09 Drill with cylindrical head with hard metal cutters

Country Status (8)

Country Link
US (1) US6986627B2 (en)
EP (1) EP1319483B1 (en)
AT (1) ATE369239T1 (en)
CA (1) CA2414252C (en)
DE (2) DE10161823A1 (en)
DK (1) DK1319483T3 (en)
ES (1) ES2290237T3 (en)
PT (1) PT1319483E (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990154A2 (en) * 2007-05-11 2008-11-12 Boehlerit GmbH & Co.KG. Cutting tool
WO2009121595A3 (en) * 2008-04-03 2010-03-18 Kennametal Inc. Lathe tool, in particular boring tool
WO2014018235A3 (en) * 2012-07-26 2014-03-20 TDY Industries, LLC Composite sintered powder metal articles
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6290728B1 (en) * 1998-09-10 2001-09-18 Percardia, Inc. Designs for left ventricular conduit
US7150589B2 (en) * 2003-10-01 2006-12-19 Greenlee Textron Inc. Deburring tool
US8235080B2 (en) * 2008-11-17 2012-08-07 Lee Valley Tools, Ltd. Interlocking, adjustable edge-forming router bit
US8727679B2 (en) * 2009-09-10 2014-05-20 Techtronic Power Tools Technology Limited Wood boring bit
US10835969B1 (en) 2018-06-29 2020-11-17 Andrew James Scaglione Self-aligning counter bore cutting tool and method of operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515548A (en) * 1921-08-29 1924-11-11 Wilhelm Sasse Apparatus for reboring holes on drilling machines and turning lathes
DE8808954U1 (en) * 1987-06-15 1988-09-22 Gustav Weber Schlagringwerkzeug-Fabrik, 5600 Wuppertal, De
US5399051A (en) * 1993-08-02 1995-03-21 Aken; Douglas G. Interchangeable head boring or driving apparatus
EP0976492A1 (en) * 1998-07-21 2000-02-02 TIGRA Hartstoff GmbH End mill with hard metal cutters
EP1136209A2 (en) * 2000-03-20 2001-09-26 TIGRA Hartstoff GmbH Forstner bit with hard metal cutters

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259611A (en) * 1941-03-19 1941-10-21 George M Burger Drill
DE2010291A1 (en) 1970-03-05 1971-09-23 Robert Bosch Gmbh, 7000 Stuttgart Control of inlet and outlet valves in internal combustion engines by liquid
US4160616A (en) * 1977-10-03 1979-07-10 Winblad Michael E Drill containing minimum cutting material
DE3309860A1 (en) * 1983-02-08 1984-08-09 Fa. Gottlieb Gühring, 7470 Albstadt DRILLING TOOL
US4580934A (en) * 1983-12-12 1986-04-08 Mccormick Wallace W Hole sizing tool
US4762445A (en) * 1985-06-03 1988-08-09 Precorp, Inc. Composite sintered twist drill
DE9206657U1 (en) * 1992-05-15 1993-09-16 Toepfer Rainer Rotary tool with carbide inserts
ATE244092T1 (en) * 1995-03-03 2003-07-15 Komet Stahlhalter Werkzeuge DRILLING TOOL
DE19543233A1 (en) * 1995-11-07 1997-05-15 Johne & Co Praezisionswerkzeug Drill tool with interchangeable tip
IL120948A0 (en) * 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly
DE10009721A1 (en) * 2000-03-01 2001-09-06 Komet Stahlhalter Werkzeuge Machine reamer with axially protending head designs head as variable cutter plate with extension having three equi-spaced wedge faces forming truncated pyramid and matched by plate seat bevel faces.
AT4227U1 (en) * 2000-03-03 2001-04-25 Johann Eberhard Ges M B H DRILL
DE20102914U1 (en) * 2001-02-19 2001-05-03 Berner Gmbh Tungsten carbide drill bit
US6499919B2 (en) * 2001-03-27 2002-12-31 Tigra Harlstoff Gmbh Cylindrical bit with hard metal cutting edges

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515548A (en) * 1921-08-29 1924-11-11 Wilhelm Sasse Apparatus for reboring holes on drilling machines and turning lathes
DE8808954U1 (en) * 1987-06-15 1988-09-22 Gustav Weber Schlagringwerkzeug-Fabrik, 5600 Wuppertal, De
US5399051A (en) * 1993-08-02 1995-03-21 Aken; Douglas G. Interchangeable head boring or driving apparatus
EP0976492A1 (en) * 1998-07-21 2000-02-02 TIGRA Hartstoff GmbH End mill with hard metal cutters
EP1136209A2 (en) * 2000-03-20 2001-09-26 TIGRA Hartstoff GmbH Forstner bit with hard metal cutters

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990154A2 (en) * 2007-05-11 2008-11-12 Boehlerit GmbH & Co.KG. Cutting tool
EP1990154A3 (en) * 2007-05-11 2013-06-05 BOEHLERIT GmbH & Co.KG. Cutting tool
WO2009121595A3 (en) * 2008-04-03 2010-03-18 Kennametal Inc. Lathe tool, in particular boring tool
KR101255670B1 (en) * 2008-04-03 2013-04-17 케나메탈 아이엔씨. A rotating tool for machining
KR101255567B1 (en) * 2008-04-03 2013-04-23 케나메탈 아이엔씨. Multi-piece boring tool
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
WO2014018235A3 (en) * 2012-07-26 2014-03-20 TDY Industries, LLC Composite sintered powder metal articles
CN104582876A (en) * 2012-07-26 2015-04-29 钴碳化钨硬质合金公司 Composite sintered powder metal articles

Also Published As

Publication number Publication date
EP1319483A3 (en) 2005-02-02
CA2414252C (en) 2011-08-23
ATE369239T1 (en) 2007-08-15
US20030118415A1 (en) 2003-06-26
DK1319483T3 (en) 2007-12-03
PT1319483E (en) 2007-10-17
DE50210633D1 (en) 2007-09-20
US6986627B2 (en) 2006-01-17
CA2414252A1 (en) 2003-06-15
DE10161823A1 (en) 2003-06-26
EP1319483B1 (en) 2007-08-08
ES2290237T3 (en) 2008-02-16

Similar Documents

Publication Publication Date Title
DE3105268C2 (en)
EP0142611B1 (en) Drill tool for manufacturing reliefs in prefabricated bores
EP1943409B1 (en) Circular-shank tool comprising a tool holder
DE102011012144B4 (en) Tool holder and tool system with a tool holder and a tool
DE60025810T2 (en) DRILL
EP0941794A2 (en) Drilling tool
EP1319483A2 (en) Drill with cylindrical head or similar tool with hard metal cutters
AT4227U1 (en) DRILL
EP1147841B1 (en) Cutting insert and tool for milling
EP1083294B1 (en) Drilling tool
DE2106671B2 (en) Device for sharpening drill bits, in particular twist drills
EP0698436A1 (en) Drilling device to make holes with undercutting
DE102004022747A1 (en) Drill bit, comprising pocket for insertion of cutting head with two cutting areas joined with bridge
DE2917664C2 (en) Rotary drill bit for deep drilling
DE346689C (en) Rotating cutting tool that can be used as a drilling and milling head
AT391646B (en) DRILL
DE202005020931U1 (en) Drill for metal work materials comprises a cutter which is soldered to the face of the drill shank with a star-shaped toothing
DE10359854A1 (en) Cylinder head drilling tool for use during processing of e.g. wood, has tool body with head, and cutting plate connected to front face of head, where body is made of fiber-reinforced plastic e.g. carbon/glass fiber-reinforced plastic
DE102006003686A1 (en) Tool system has teeth formed so that contact surfaces can only be brought together in at least one defined rotary angle position relative to central axis of tool parts
DE1552404C3 (en) Tendon replacement chucks for drills and the like
EP0775546B1 (en) Tool-holder
DE102005041331A1 (en) A method for manufacturing small diameter hardened piercing tools has a cylindrical shaft and head with a hard cap soldered together prior to machining
DE2935423A1 (en) FASTENING DEVICE FOR A MULTI-SPINDLE HEAD OF A MACHINING MACHINE
DE2756990A1 (en) ROCK DRILLS
DE19545084C1 (en) Rotating cutting tool for machining soft and hard materials

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 23B 51/00 B

Ipc: 7B 27G 15/00 A

17P Request for examination filed

Effective date: 20050512

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: DRILL WITH CYLINDRICAL HEAD WITH HARD METAL CUTTERS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50210633

Country of ref document: DE

Date of ref document: 20070920

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20071004

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071108

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2290237

Country of ref document: ES

Kind code of ref document: T3

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20070808

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: TIGRA HARTSTOFF G.M.B.H.

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071108

26N No opposition filed

Effective date: 20080509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20081222

Year of fee payment: 7

Ref country code: DK

Payment date: 20081219

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20081219

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070808

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100104

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20101220

Year of fee payment: 9

Ref country code: FR

Payment date: 20110107

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20101222

Year of fee payment: 9

Ref country code: PT

Payment date: 20101125

Year of fee payment: 9

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110323

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100922

Year of fee payment: 9

Ref country code: IT

Payment date: 20101228

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091210

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20120611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120611

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120703

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50210633

Country of ref document: DE

Effective date: 20120703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111209

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 369239

Country of ref document: AT

Kind code of ref document: T

Effective date: 20111209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111209