DE102005045744A1 - Drilling tool for workpiece, has cutting part and deep hole drill with chip flutes that continuously runs from drill bit to shaft, where core diameter of drill has grading, which is pulled by force, such that depth of chip flute is enlarged - Google Patents
Drilling tool for workpiece, has cutting part and deep hole drill with chip flutes that continuously runs from drill bit to shaft, where core diameter of drill has grading, which is pulled by force, such that depth of chip flute is enlarged Download PDFInfo
- Publication number
- DE102005045744A1 DE102005045744A1 DE102005045744A DE102005045744A DE102005045744A1 DE 102005045744 A1 DE102005045744 A1 DE 102005045744A1 DE 102005045744 A DE102005045744 A DE 102005045744A DE 102005045744 A DE102005045744 A DE 102005045744A DE 102005045744 A1 DE102005045744 A1 DE 102005045744A1
- Authority
- DE
- Germany
- Prior art keywords
- drill
- chip
- core diameter
- deep hole
- shaft
- 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.)
- Ceased
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
- B23B2251/402—Flutes, i.e. chip conveying grooves with increasing depth in a direction towards the shank from the tool tip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
- B23B51/063—Deep hole drills, e.g. ejector drills
- B23B51/066—Gun drills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
Description
Die Erfindung betrifft einen Tieflochbohrer gemäß dem Oberbegriff des Schutzanspruchs 1.The The invention relates to a deep hole drill according to the preamble of the protection claim 1.
Der hauptsächliche Vorteil dieser bekannten Bohrer ist darin zu sehen, das der Tieflochbohrer in spezifischen Werkstoffen ausgeführt werden kann, die den jeweiligen Anforderungen am besten gerecht werden.Of the primary Advantage of these known drill is to be seen in the deep hole drill can be carried out in specific materials that correspond to the respective Best meet the requirements.
So zeichnet sich ein Bohrer aus Vollhartmetall durch seine hohe Festigkeit und ein Bohrer aus Schnellarbeitsstahl durch seine Elastizität und höhere Zähigkeit bei hoher Verschleißfestigkeit aus. Beim Bohren mit diesen bekannten Bohrwerkzeugen treten allerdings sowohl im Werkstück als auch im Werkzeug sehr hohe thermische Beanspruchungen auf, die dazu führen können, dass der Bohrer dann, wenn er mit hohen Schnittgeschwindigkeiten betrieben wird, in der Bohrung frisst. Mit anderen Worten bedeutet dies, dass bei den bekannten Bohrwerkzeugen die positiven Eigenschaften der verwendeten Materialien nur begrenzt ausgenützt werden können.So stands out a solid carbide drill due to its high strength and a drill made of high-speed steel due to its elasticity and higher toughness with high wear resistance out. When drilling with these known drilling tools, however, occur both in the workpiece as well as in the tool very high thermal stresses, the lead to it can, that the drill then when he has high cutting speeds is operated, eats in the hole. In other words means This, that in the known drilling tools, the positive properties the materials used can be used only to a limited extent.
Der Erfindung liegt die Aufgabe zugrunde, ein Tieflochbohrer zu schaffen, der durch seinen zylindrischen abgestuften Kerndurchmesser gekennzeichnet ist, wodurch eine hohe Wärmeabfuhr von der Hauptschneide sichergestellt wird, dass die Schnittgeschwindigkeit an die mechanische Belastungsgrenze der Bohrerspitze herangeführt werden kann ohne dadurch thermische Überbeanspruchungen in Kauf nehmen zu müssen.Of the Invention has for its object to provide a deep hole drill, characterized by its cylindrical stepped core diameter is, whereby a high heat dissipation from the main cutting edge ensures that the cutting speed can be brought to the mechanical load limit of the drill bit without thermal overstress to have to accept.
Zur
Vermeidung des Spänestaus
wird der Kerndurchmesser (
Der erfindungsgemäße Bohrer ist vorzugsweise als Vollhartmetallbohrer ausgeführt.Of the drill according to the invention is preferably designed as a solid carbide drill.
Der erfindungsgemäße Tieflochbohrer ist zur Bearbeitung von Metallen, Nichtmetallen und dgl. vorgesehen.Of the Deep hole drill according to the invention is intended for processing metals, non-metals and the like.
Der Erfindung liegt die Aufgabe zugrunde, ein Bohrwerkzeug zu schaffen, das in der Lage ist, tiefe Löcher mit hoher Schnittleistung und andererseits mit sehr hoher Präzision vorzunehmen, so das auch tiefe Löcher in einem Arbeitsgang mit enger Toleranz herstellbar werden, ohne dabei die Stabilität des Bohrwerkzeugs spürbar reduzieren zu müssen.Of the Invention has for its object to provide a drilling tool that is capable of deep holes with high cutting power and on the other hand with very high precision, so that too deep holes be produced in one operation with close tolerance, without the stability of the Drill tool noticeable to have to reduce.
Die
Ausbildung des Spanraums eines Bohrwerkzeugs, dessen Kerndurchmesser
sich kontinuierlich von der Bohrerspitze bis zum Schaft hin verkleinert,
wie dies in der Patentschrift
Die konstruktive Abstufung des zylindrischen Kerndurchmessers am Bohrwerkzeug hat gezeigt, dass der Span aufgrund der plötzlichen Abstufung mit geringerem Kraftaufwand schneller abtransportiert und die Wärmeentstehung entgegen der kontinuierlichen Vergrößerung des Spanraums deutlich verringert werden kann.The constructive gradation of the cylindrical core diameter on the drilling tool has shown that the chip due to the sudden gradation with lesser Force removed faster and the heat generation against the continuous enlargement of the Spanraums can be significantly reduced.
Der Erfindung liegt die Aufgabe zugrunde, ein Bohrwerkzeug zu schaffen, das in der Lage ist, tiefe Löcher mit hoher Schnittleistung und andererseits mit sehr hoher Präzision vorzunehmen.Of the Invention has for its object to provide a drilling tool that is capable of deep holes with high cutting power and on the other hand with very high precision.
Im folgenden werden die Erfindung und deren Ausgestaltungen im Zusammenhang mit den Figuren näher erläutert.in the The following are the invention and its embodiments related closer with the figures explained.
Es zeigen:It demonstrate:
In
In
der
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005045744A DE102005045744A1 (en) | 2005-09-23 | 2005-09-23 | Drilling tool for workpiece, has cutting part and deep hole drill with chip flutes that continuously runs from drill bit to shaft, where core diameter of drill has grading, which is pulled by force, such that depth of chip flute is enlarged |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005045744A DE102005045744A1 (en) | 2005-09-23 | 2005-09-23 | Drilling tool for workpiece, has cutting part and deep hole drill with chip flutes that continuously runs from drill bit to shaft, where core diameter of drill has grading, which is pulled by force, such that depth of chip flute is enlarged |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005045744A1 true DE102005045744A1 (en) | 2007-03-29 |
Family
ID=37832592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005045744A Ceased DE102005045744A1 (en) | 2005-09-23 | 2005-09-23 | Drilling tool for workpiece, has cutting part and deep hole drill with chip flutes that continuously runs from drill bit to shaft, where core diameter of drill has grading, which is pulled by force, such that depth of chip flute is enlarged |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005045744A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2675582A2 (en) * | 2011-02-15 | 2013-12-25 | Somta Tools (Pty) Ltd. | Rotary cutter |
CN103692002A (en) * | 2013-12-27 | 2014-04-02 | 大连远东工具有限公司 | Drilling bit |
CN113427207A (en) * | 2021-06-09 | 2021-09-24 | 东台升华工具有限公司 | Post-treatment process for chip groove of straight-groove drill bit for aluminum |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63260713A (en) * | 1987-04-17 | 1988-10-27 | Sumitomo Electric Ind Ltd | Blank for extra-hard solid drill and its manufacture |
EP0712343B1 (en) * | 1993-08-06 | 1998-12-30 | KENNAMETAL HERTEL AG Werkzeuge + Hartstoffe | Twist drill |
JP2002144123A (en) * | 2000-11-14 | 2002-05-21 | Mitsubishi Materials Corp | Drill |
-
2005
- 2005-09-23 DE DE102005045744A patent/DE102005045744A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63260713A (en) * | 1987-04-17 | 1988-10-27 | Sumitomo Electric Ind Ltd | Blank for extra-hard solid drill and its manufacture |
EP0712343B1 (en) * | 1993-08-06 | 1998-12-30 | KENNAMETAL HERTEL AG Werkzeuge + Hartstoffe | Twist drill |
JP2002144123A (en) * | 2000-11-14 | 2002-05-21 | Mitsubishi Materials Corp | Drill |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2675582A2 (en) * | 2011-02-15 | 2013-12-25 | Somta Tools (Pty) Ltd. | Rotary cutter |
EP2675582A4 (en) * | 2011-02-15 | 2014-11-05 | Somta Tools Pty Ltd | Rotary cutter |
CN103692002A (en) * | 2013-12-27 | 2014-04-02 | 大连远东工具有限公司 | Drilling bit |
CN113427207A (en) * | 2021-06-09 | 2021-09-24 | 东台升华工具有限公司 | Post-treatment process for chip groove of straight-groove drill bit for aluminum |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R081 | Change of applicant/patentee |
Owner name: GUEHRING KG, DE Free format text: FORMER OWNER: GUEHRING OHG, 72458 ALBSTADT, DE Effective date: 20140203 |
|
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |