DE102014203448A1 - Method for producing a dental instrument or medical instrument - Google Patents
Method for producing a dental instrument or medical instrument Download PDFInfo
- Publication number
- DE102014203448A1 DE102014203448A1 DE102014203448.5A DE102014203448A DE102014203448A1 DE 102014203448 A1 DE102014203448 A1 DE 102014203448A1 DE 102014203448 A DE102014203448 A DE 102014203448A DE 102014203448 A1 DE102014203448 A1 DE 102014203448A1
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- DE
- Germany
- Prior art keywords
- instrument
- laser
- dental
- producing
- instruments
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
- B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1ns or less
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/002—Drill-bits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Instruments, insbesondere eines Dentalinstruments oder eines medizinischen Instruments, bei welchem von einem Werkstück ein konturgebender Materialabtrag mittels eines Lasers erfolgt.The invention relates to a method for producing an instrument, in particular a dental instrument or a medical instrument, in which a workpiece is subjected to a contouring removal of material by means of a laser.
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Instruments, insbesondere eines Dentalinstruments oder eines medizinischen Instruments.The invention relates to a method for producing an instrument, in particular a dental instrument or a medical instrument.
Aus dem Stand der Technik ist es bekannt, Instrumente der oben genannten Art durch spanende Verfahren herzustellen. Dabei werden beispielsweise Rohlinge durch Drehen bearbeitet. Die Herstellung von Köpfen der Instrumente, welche mit Schneiden versehen sind, erfolgt dann durch Fräsen oder Schleifen.From the prior art it is known to produce instruments of the above type by machining processes. For example, blanks are processed by turning. The production of heads of the instruments, which are provided with cutting, then carried out by milling or grinding.
Die bekannten Herstellungsverfahren sind dazu geeignet, Instrumente aus den üblicherweise verwendeten Materialien zu fertigen, beispielsweise aus Stahl, der nachfolgend gehärtet, fertigbearbeitet und/oder beschichtet wird, oder aus Hartmetall und Keramik. Bei der Bearbeitung von Keramik kann diese sowohl im Hartzustand, als auch im Grünlings- oder Weißlingszustand erfolgen. In jedem Falle handelt es sich um spanende Verfahren unter Verwendung geeigneter Instrumente.The known production methods are suitable for producing instruments from the commonly used materials, for example steel, which is subsequently hardened, finished and / or coated, or hard metal and ceramic. In the processing of ceramic, this can be done both in the hard state, as well as in the green state or Weißlingszustand. In any case, these are machining processes using appropriate instruments.
Die durch derartige spanende Verfahren erzeugbaren Geometrien, insbesondere Schneidengeometrien an Köpfen von Dentalinstrumenten oder medizinischen Instrumenten sind durch die Form und Größe der Werkzeuge (Fräser, Schleifscheiben, etc.) vorbestimmt. Bei der Entwicklung neuer Formen, beispielsweise Schneidengeometrien oder Verzahnungsformen, stellt sich deshalb stets die Frage, wie diese herstellbar sind. Dabei sind durch die Geometrie der Werkzeuge enge Grenzen gesetzt.The geometries that can be produced by such machining methods, in particular cutting geometries on heads of dental instruments or medical instruments, are predetermined by the shape and size of the tools (milling cutters, grinding wheels, etc.). When developing new molds, for example cutting edge geometries or tooth forms, the question always arises as to how they can be produced. There are narrow limits set by the geometry of the tools.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, welches bei einfacher, kostengünstiger Anwendbarkeit die Herstellung auch von komplexen Geometrien von Instrumenten ermöglicht.The invention has for its object to provide a method of the type mentioned, which allows for simple, inexpensive applicability, the production of complex geometries of instruments.
Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Anspruchs 1 gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the object is achieved by the combination of features of
Im Einzelnen ist erfindungsgemäß somit vorgesehen, dass eine konturgebende Bearbeitung eines Werkstücks mittels eines Lasers erfolgt. Es handelt sich erfindungsgemäß somit um ein abtragendes Laserverfahren, bei welchem kleine Materialpartikel mittels des Lasers aufgeschmolzen und verdampft werden. Hierdurch ist es möglich, präziseste Geometrien zu erzeugen, die mit herkömmlichen spanenden Verfahren nicht realisierbar sind.In detail, the invention thus provides that a contouring machining of a workpiece by means of a laser. It is thus an ablative laser process according to the invention, in which small material particles are melted and evaporated by means of the laser. This makes it possible to produce the most precise geometries, which are not feasible with conventional machining methods.
Als Laser werden erfindungsgemäß bevorzugt Kurzpulslaser oder Ultrakurzpulslaser eingesetzt, beispielsweise Femto-, Piko- oder Nano-Sekundenlaser.Short-pulse lasers or ultrashort-pulse lasers are preferably used according to the invention as lasers, for example femto, pico or nano-seconds lasers.
Die Laser-Bearbeitung weist den Vorteil auf, dass das Grundgefüge der bearbeiteten Werkstücke durch den Laserabtrag nicht beeinträchtigt wird, so dass Produkte mit hoher Festigkeit und Instrumente mit hohen Schneidleistungen hergestellt werden können.Laser processing has the advantage that the basic structure of the machined workpieces is not affected by the laser ablation, so that products with high strength and instruments with high cutting performance can be produced.
Erfindungsgemäß ist es möglich, die gesamte Formgebung eines Instruments mittels des Lasers durchzuführen. Dabei wird beispielsweise ein zylindrischer Rohling verwendet, welcher vollständig mittels des Lasers bearbeitet wird.According to the invention, it is possible to carry out the entire shaping of an instrument by means of the laser. In this case, for example, a cylindrical blank is used, which is completely processed by means of the laser.
Alternativ hierzu ist jedoch auch möglich, ein Halbfertigteil in klassischer Herstellungsweise zu erzeugen, beispielsweise durch Drehen, Fräsen oder Schleifen. Dabei können beispielsweise der Schaft und der Einspannbereich des Schaftes konturgebend bearbeitet werden, ebenso eine Umfangskontur des Kopfes des Instruments. Mittels des erfindungsgemäßen Materialabtragsverfahrens werden dann die Schneiden und Spanräume ausgearbeitet.Alternatively, however, it is also possible to produce a semi-finished part in classical production, for example by turning, milling or grinding. In this case, for example, the shank and the clamping area of the shank can be contoured, as can a peripheral contour of the head of the instrument. By means of the material removal process according to the invention, the cutting edges and chip spaces are then worked out.
Das erfindungsgemäße Herstellungsverfahren weist den zusätzlichen Vorteil auf, dass es möglich ist, werkzeuglos oder im Wesentlichen werkzeuglos die vollständige Herstellung der Instrumente zu realisieren. Dies bringt auch den Vorteil, dass Modifikationen, beispielsweise an der Verzahnung eines Dentalbohrers oder Dentalfräsers, leicht durchgeführt werden können, da hierzu lediglich Softwareänderungen, nicht jedoch Änderungen in den zu verwendenden Werkzeugen erforderlich sind. Beispielsweise werden die erfindungsgemäßen Instrumente auf 5- oder 6-Achsen-Maschinen hergestellt. Bei einer klassischen spanenden Fertigung sind hierbei unterschiedlichste Werkzeuge (beispielsweise Fräser oder Schleifscheiben) erforderlich, welche ausgetauscht oder nachgeschliffen werden müssen. Auch muss die Maschinensteuerung die Größe und Art der Werkzeuge berücksichtigen. All dies entfällt bei dem erfindungsgemäßen Verfahren, da dort lediglich die Bewegung und der Einsatz des abtragenden Lasers bei der Maschinensteuerung berücksichtigt werden müssen.The manufacturing method according to the invention has the additional advantage that it is possible to realize the complete production of the instruments without tools or essentially without tools. This also has the advantage that modifications, for example to the toothing of a dental drill or dental milling cutter, can be carried out easily since this requires only software changes, but not changes in the tools to be used. For example, the instruments according to the invention are manufactured on 5 or 6-axis machines. In the case of a classic metal-cutting production, a great variety of tools (for example, milling cutters or grinding wheels) are required, which must be exchanged or reground. Also, the machine control must consider the size and type of tools. All this is eliminated in the method according to the invention, since there only the movement and the use of the ablating laser must be considered in the machine control.
Unter Verwendung des erfindungsgemäßen Verfahrens ist es somit möglich, Konstruktionen und Formen von Instrumenten herzustellen, welche mittels klassischer Formgebungsverfahren nicht herstellbar sind. Hierdurch ist es möglich, Produkte zu erzeugen, welche verbesserte Einsatzbedingungen aufweisen. Derartige Produkte sind insbesondere in der Zahnmedizin, in der Zahntechnik, in der Ohren-Chirurgie, in der Neuro-Chirurgie oder in der Orthopädie vorteilhaft verwendbar. Insgesamt handelt es sich dabei bevorzugterweise um Zahnbohrer, Dentalfräser, Schleifinstrumente, Schallspitzen und/oder Sägeblätter.Using the method according to the invention, it is thus possible to produce constructions and shapes of instruments which can not be produced by means of classical shaping methods. This makes it possible to produce products which have improved operating conditions. Such products are particularly useful in dentistry, in dental technology, in ear surgery, in neuro-surgery or in orthopedics advantageous. Overall, these are preferably tooth drills, dental cutters, grinding instruments, sonic tips and / or saw blades.
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:In the following the invention will be described by means of an embodiment in conjunction with the drawing. Showing:
Das erfindungsgemäße konturgebende Materialabtragsverfahren mittels eines Lasers hat auch den weiteren Vorteil, dass es möglich ist, die Schneiden des Instruments mittels des Lasers zu schärfen. Dies trägt zu einer Steigerung der Abtragsleistungen bei.The contouring material removal method according to the invention by means of a laser also has the further advantage that it is possible to sharpen the cutting edges of the instrument by means of the laser. This contributes to an increase in the removal rates.
Durch die materialabtragende Bearbeitung der Oberfläche des Instruments mittels des Lasers ist erfindungsgemäß weiterhin in vorteilhafter Weise möglich, die Oberflächen entsprechend zu gestalten, beispielsweise diese hydrophob oder hydrophil auszubilden.By the material-removing machining of the surface of the instrument by means of the laser according to the invention further advantageously possible to make the surfaces accordingly, for example, these hydrophobic or hydrophilic form.
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Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014203448.5A DE102014203448A1 (en) | 2014-02-26 | 2014-02-26 | Method for producing a dental instrument or medical instrument |
PCT/EP2015/051492 WO2015128137A1 (en) | 2014-02-26 | 2015-01-26 | Method for producing a dental or medical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014203448.5A DE102014203448A1 (en) | 2014-02-26 | 2014-02-26 | Method for producing a dental instrument or medical instrument |
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DE102014203448A1 true DE102014203448A1 (en) | 2015-08-27 |
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Application Number | Title | Priority Date | Filing Date |
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DE102014203448.5A Ceased DE102014203448A1 (en) | 2014-02-26 | 2014-02-26 | Method for producing a dental instrument or medical instrument |
Country Status (2)
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DE (1) | DE102014203448A1 (en) |
WO (1) | WO2015128137A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19901777B4 (en) * | 1999-01-18 | 2007-08-16 | 3M Espe Ag | Method for producing endodontic instruments by means of laser use |
US20080213720A1 (en) * | 2003-05-13 | 2008-09-04 | Ultradent Products, Inc. | Endodontic instruments manufactured using chemical milling |
US20080132929A1 (en) * | 2005-07-19 | 2008-06-05 | O'sullivan Denis F | Surgical bur with anti-chatter flute geometry |
AU2010288871B2 (en) * | 2009-08-26 | 2015-04-09 | Stryker European Operations Holdings Llc | Ribbed surgical bur |
AT509292B1 (en) * | 2009-09-01 | 2012-01-15 | Univ Wien Med | Trepan |
US20120231413A1 (en) * | 2011-03-11 | 2012-09-13 | Mcspadden John T | Endodontic instrument and method of manufacturing |
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2014
- 2014-02-26 DE DE102014203448.5A patent/DE102014203448A1/en not_active Ceased
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2015
- 2015-01-26 WO PCT/EP2015/051492 patent/WO2015128137A1/en active Application Filing
Non-Patent Citations (1)
Title |
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DIAMOND BUSINESS | Fokus Laser · focus laser 2009http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=10&cad=rja&uact=8&ved=0CGAQFjAJ&url=http%3A%2F%2Fwww.laserplussag.de%2Ffileadmin%2FPDF-Dateien%2FLaserplussartikel_DB_Focus_Laser_09_09.pdf&ei=gFgxU-bYHtSShQeVhYHoCQ&usg=AFQjCNFc0zfCDZQ0vonDs1ncK3AlV2lFXg * |
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WO2015128137A1 (en) | 2015-09-03 |
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R003 | Refusal decision now final |