DE1565794A1 - Method for material processing by means of focused optical radiation - Google Patents
Method for material processing by means of focused optical radiationInfo
- Publication number
- DE1565794A1 DE1565794A1 DE19661565794 DE1565794A DE1565794A1 DE 1565794 A1 DE1565794 A1 DE 1565794A1 DE 19661565794 DE19661565794 DE 19661565794 DE 1565794 A DE1565794 A DE 1565794A DE 1565794 A1 DE1565794 A1 DE 1565794A1
- Authority
- DE
- Germany
- Prior art keywords
- radiation
- colored
- material processing
- optical radiation
- area
- 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.)
- Pending
Links
Classifications
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
-
- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
- B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
Description
Verfahren zur Materialbearbeitung mittels einer fokussierten optischen Strahlung Die Erfindung betrifft ein Verfahren zur Materialverarbeitung mittels einer fokussierten optischen Strahlung, insbesondere eines optischen Senders oder Verstärkers. Method for material processing by means of a focused optical Radiation The invention relates to a method for material processing by means of a focused optical radiation, in particular an optical transmitter or Amplifier.
Mit Licht hoher Beistungsdichte, speziell mit dem fokussierten Lichtimpuls leistungsstark optisch gepumpter optischer Sender, wie Rubinsender, können Metalie und andere Stoffe miteinander verschweißt werden. Ebenso lassen sich Materialien beispielsweise bohren, schneiden oder löten.With light of high power density, especially with the focused light pulse Powerful optically pumped optical transmitters, such as ruby transmitters, can do Metalie and other materials are welded together. Materials can also be used for example drilling, cutting or soldering.
Dabei ist es störend, daß die Oberfläche der meisten Metalle den überwiegenden Teil des auftreffenden Lichtes reflektiert.It is annoying that the surface of most metals is predominant Part of the incident light is reflected.
Dadurch ist einmal eine viel größere Energiemenge zum Schmelzen an der Bearbeitungsstelle nötig als bei vollständiger Absorption des Lichtes. Zum anderen wird die absorbierte Lichtmenge von der Art des Materials und seiner OberflEchenbeschaffenheit abhängig, so daß eine einheitliche Energie pro Lichtizpuls noch keine einheitliche Schweißstelle garantiert.This means that a much larger amount of energy is required to melt the processing point than with complete absorption of the light. On the other hand The amount of light absorbed depends on the type of material and its surface properties dependent, so that a uniform energy per light pulse is not a uniform one Welding point guaranteed.
Die der Erfindung zugrunde liogende Aufgabe besteht darin, den Energieaufwand bei der Materialbearbeitung zu erniedrigen und eine gleichmäßige Qualität von Bearbeitungsstellen, vor allem ron Schweißstellen, zu erzielen.The object on which the invention is based is to reduce the energy consumption to lower the material processing and a uniform quality of processing points, especially ron welds.
4usgehend von einem Verfahren zur Materialbearbeitung mittels einer fokussierten optischen Strahlung, insbesondere eines optischen Senders oder Yerstärkers wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß dem zu bearbeitenden Material eine dünne Schicht auf der der Strahlung zugewandten Seite zugeordnet ist, die derart eingefärbt ist, daß die strahlung wenigstens näherungsweise vollständig absorbiert wird.4 starting from a method for material processing by means of a focused optical radiation, in particular an optical transmitter or amplifier this object is according to the invention solved in that the to be processed Material is assigned a thin layer on the side facing the radiation, which is colored in such a way that the radiation is at least approximately complete is absorbed.
Für die praktische Ausführung des erfindungsgemäßen Verfahrens hat es sich als vorteilhaft und ausreichend erwiesen, wenn nur die Schweißstelle eingefärbt wird.For the practical implementation of the method according to the invention has it has proven advantageous and sufficient if only the welding point is colored will.
Vorteilhaft ist es auch, wenn die von der Strahlung zu treffende Pläche derart unterschiedlich eingefärbt wird, daß unter Berücksichtigung der Leuchtdichteverteilung der Strahlung eine geforderte günstige Verteilung der Oberflichenerwärsung auftritt.It is also advantageous if the surface to be hit by the radiation is colored differently in such a way that taking into account the luminance distribution the radiation a required favorable distribution of surface warming occurs.
Vorteilhaft ist es weiterhin, wenn die von der Strahlung zu treffende Fläche derart eingefärbt wird, daß ein wenigstens näherungsweise punkt- oder strichförmiges Gebiet stärkere Absorption aufweist.It is also advantageous if the radiation to be hit Area is colored in such a way that an at least approximately point-shaped or line-shaped Area has greater absorption.
Bei einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens ist vorgesehen, daß die Einfärbung durch eine chemische Veränderung des Naterials und/oder mittels eines Farbstoffs vorgenommen wird.In an advantageous embodiment of the method according to the invention it is intended that the coloring is achieved through a chemical change in the material and / or is carried out by means of a dye.
Von besonderem Vorteil ist es, wenn ein Farbstoff vorgesehen ist, der infolge der bei der Materialbearbeitung auftretenden Temperatur verdampft.It is of particular advantage if a dye is provided which evaporates as a result of the temperature occurring during material processing.
Vorteilhaft wird bei dem Verfahren die optische rtrahlung der Scjei13stelle in Form eines kurzen Impulses zugeführt. Mit Vorteil kann der Impuls durch eine, auf die veränderte Absorption der eingefärbten Gebiete ansprechende photoempfindliche Einrichtung ausgelöst werden.The optical radiation of the point of view is advantageous in the process supplied in the form of a short pulse. Advantageously, the impulse can be photosensitive responses to the changed absorption of the colored areas Device to be triggered.
Anhand eines Ausführungsbeispiels wird die Erfindung nachstehend näher erläutert.The invention is explained in more detail below with the aid of an exemplary embodiment explained.
Die Figur zeigt einen an sich bekannten optischen Sender, der aus einem optischen Resonator 1, bestehend aus einem, an den Stirnseiten verspiegelten Rubinstab, einer Pumplichtquelle 2 und einem rotationselliptischen Hohlspiegel 3 besteht. In der Ausbreitungsrichtung der Signalstrahlung 4 sind zwei Eisenblechstreifen 5 und 6 kreuzweise sich berührend übereinander angeordnet. Die Eisenblechstreifen 5 und 6 sollen durch eine Schweißstelle verbunden werden. Zu diesem Zwecke trägt der Eisenblechstreifen 5 an der Stelle 7 eine Einfärbung.The figure shows an optical transmitter known per se, which consists of an optical resonator 1, consisting of a mirrored on the end faces Ruby rod, a pump light source 2 and a rotationally elliptical concave mirror 3 consists. In the direction of propagation of the signal radiation 4 are two sheet iron strips 5 and 6 arranged crosswise and touching one another. The sheet iron strips 5 and 6 are to be connected by a weld. To this end it bears the sheet iron strip 5 at the point 7 a coloring.
Zur Einfärbung wurde Methylenblau in wässeriger Lösung oder in einem Tösungsmittel, das die Oberfläche des Blechs benutzt wie ein Fett, verwendet. Wird die Strahlung 4 auf die Stelle 7 gerichtet, so wird die Farbe erhitzt und verdampft. Es bildet sich eine Gaswolke, die infolge ihrer hohen Absorption viel Wärmeenergie auSnizmt und die darunter liegende Eisenoberflächenschicht verdampft. Damit ist das Eisenblech 5 in die Lage versetzt, die Energie in hinreichender Menge zu absorbieren, die ohne die Einfärbung reflektiert worden wäre.For coloring, methylene blue was used in an aqueous solution or in a Solvent that uses the surface of the sheet like a grease is used. Will radiation 4 to point 7 directed, the paint is heated and evaporates. A gas cloud forms due to its high level of absorption consumes a lot of thermal energy and the underlying iron surface layer evaporates. The iron sheet 5 is thus able to use the energy in sufficient quantities which would have been reflected without the coloring.
An der Stelle 7 schmilzt das Eisen der Blechstreifen 5 und G und es bildet sich bei Beendigung der Strahlung 4 eine die Blechstreifen 5 und 6 verbindende Schweißstelle.At the point 7, the iron of the sheet metal strips 5 and G and it melts When the radiation 4 ends, a sheet metal strips 5 and 6 are formed Welding point.
7 Patentansprüche 1 Figur7 claims 1 figure
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0102995 | 1966-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1565794A1 true DE1565794A1 (en) | 1970-02-19 |
Family
ID=7524843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661565794 Pending DE1565794A1 (en) | 1966-04-01 | 1966-04-01 | Method for material processing by means of focused optical radiation |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1565794A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4111876A1 (en) * | 1990-04-19 | 1991-10-24 | Matsushita Electric Works Ltd | ENERGY BEAM WELDING PROCESS |
| WO2000066346A1 (en) * | 1999-04-30 | 2000-11-09 | Powerlasers Limited | Welding of carpet to panels |
| WO2000066345A2 (en) * | 1999-04-30 | 2000-11-09 | Powerlasers Ltd. | Method of clamping thermoplastic pieces and heat control for laser welding |
| EP1508398A1 (en) * | 2003-08-22 | 2005-02-23 | Bayer Chemicals AG | Process for joining of synthetic and metal parts |
-
1966
- 1966-04-01 DE DE19661565794 patent/DE1565794A1/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4111876A1 (en) * | 1990-04-19 | 1991-10-24 | Matsushita Electric Works Ltd | ENERGY BEAM WELDING PROCESS |
| DE4111876C2 (en) * | 1990-04-19 | 2001-08-30 | Matsushita Electric Works Ltd | Process for joining metal parts with an energy beam |
| WO2000066346A1 (en) * | 1999-04-30 | 2000-11-09 | Powerlasers Limited | Welding of carpet to panels |
| WO2000066345A2 (en) * | 1999-04-30 | 2000-11-09 | Powerlasers Ltd. | Method of clamping thermoplastic pieces and heat control for laser welding |
| WO2000066345A3 (en) * | 1999-04-30 | 2001-04-26 | Powerlasers Ltd | Method of clamping thermoplastic pieces and heat control for laser welding |
| EP1508398A1 (en) * | 2003-08-22 | 2005-02-23 | Bayer Chemicals AG | Process for joining of synthetic and metal parts |
| US7225521B2 (en) | 2003-08-22 | 2007-06-05 | Lanxess Deutschland Gmbh | Method of connecting shaped parts made of plastics material and metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SH | Request for examination between 03.10.1968 and 22.04.1971 |