WO2003055637A1 - Verfahren und vorrichtung zum trennen eines werkstoffes - Google Patents
Verfahren und vorrichtung zum trennen eines werkstoffes Download PDFInfo
- Publication number
- WO2003055637A1 WO2003055637A1 PCT/EP2002/014794 EP0214794W WO03055637A1 WO 2003055637 A1 WO2003055637 A1 WO 2003055637A1 EP 0214794 W EP0214794 W EP 0214794W WO 03055637 A1 WO03055637 A1 WO 03055637A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- laser
- separating
- workpiece
- laser beam
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/095—Tubes, rods or hollow products
- C03B33/0955—Tubes, rods or hollow products using a focussed radiation beam, e.g. laser
-
- 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
- B23K26/0006—Working by laser beam, e.g. welding, cutting or boring 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
-
- 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
- B23K2103/30—Organic material
- B23K2103/42—Plastics
-
- 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
-
- 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
- B23K2103/52—Ceramics
Definitions
- the present invention relates to a method and an apparatus for separating a material.
- DE-C-42 14 159 discloses a method for generating breaking stresses in glass, the breaking stress by irradiating the glass along the dividing line in a width of at most 0.15 mm with high-energy electromagnetic radiation with a power density of at least 10 kW / mm 2 and heating times of less than 125 ms take place in a wavelength range in which the absorption length of the radiation is in the order of magnitude of the workpiece thickness.
- DE-A-44 05 203 describes a method for processing glass, plastic, semiconductors, wood or ceramic by means of laser radiation, a workpiece part consisting of one of these substances and to be processed being acted upon with a laser beam, thereby changing the nature of the workpiece part and wherein laser radiation with a wavelength of about 1.4 ⁇ m to 3.0 ⁇ m is used.
- laser radiation with a wavelength of about 1.4 ⁇ m to 3.0 ⁇ m is used.
- the removal takes place through a thermo-mechanical effect, in which the material to be processed is heated up very strongly locally by the effect of the laser radiation, so that so-called micro-explosions occur. With this method, a rough breaking edge with splitters is obtained.
- the object of the present invention is to provide an economical and environmentally friendly method and a device for separating material, a splinter-free drawn separating line having any contour being produced.
- the object of the present invention is achieved by a method for separating a material, wherein a) a crack is produced on the surface of the material, b) a crack is drawn from the crack with a guided laser beam along the predetermined dividing line, the wavelength of the laser beam in one Area in which the absorption length is in the order of the workpiece thickness.
- a preferred embodiment of the present invention is a method in which the material is irradiated with a width of at most 1 mm, preferably at most 0.3 mm. The tension zone is sharper and more intense and as a result the cut is more precise than with conventional methods.
- a preferred embodiment of the present invention is a method in which the material is irradiated with a power density of at least 100 W / cm2, preferably at least W / cm2 mm with a power density of at most W / cm2, preferably at most W / cm2, mm.
- the maximum temperature in the workpiece is below transformation temperatures. This creates only temporary tensions and no permanent tensions.
- a preferred embodiment of the present invention is a method in which the speed of the laser beam is> 1 mm / s, preferably> 50 mm / s. At this speed, the heat profile slowly widens. A technically good cut is obtained.
- a preferred embodiment of the present invention is a method, the focus of the laser being approximately in the middle of the workpiece.
- the advantage of the method according to the invention lies in the fact that the area with the highest temperature and thus the compressive stress zone lie inside the workpiece.
- the fact that the crack stresses necessary for the growth of the crack lie on the surface of the material or in the base of the crack is very advantageous.
- a preferred embodiment of the present invention is a method in which a spray nozzle is guided behind the laser.
- the advantage of this embodiment according to the invention is that the voltages generated by the laser temperature profile are amplified. This advantageously increases the speed of the separation process.
- Another preferred embodiment of the present invention is a method in which the material is preheated along the dividing line before the separation.
- the advantage of this embodiment according to the invention is that the voltages generated by the laser temperature profile are amplified. This advantageously increases the speed of the separation process.
- a device for separating a material with a laser with an absorption length in the order of magnitude of the workpiece thickness and an irradiation of the material with a width of at most 1 mm, preferably at most 0.3 mm.
- Any good contours can be obtained with high precision with the laser according to the invention. Contours with small radius of curvature can be cut particularly advantageously. The cut is largely free of splinters.
- a preferred embodiment of the invention is a device with a power density of at least 100 W / cm2, preferably at least W / cm2 mm and with a power density of at most W / cm2, preferably at most W / cm2 mm. With these power densities, the laser according to the invention achieves the maximum temperature in the workpiece below the transformation temperatures. This creates only temporary tensions and no permanent tensions.
- a preferred embodiment of the invention is a device with a speed of the laser beam of> 1 mm / s, preferably> 50 mm / s. At this speed, the heat profile slowly widens. A technically good cut is obtained.
- Figure 1 shows a laser (1), laser optics (2), spray nozzle (3), heating device (4), workpiece (5), xy- ⁇ positioning device and purge air connection (7) and a crack (8th).
- the workpiece (5) is guided under the laser (1).
- a crack (8) in the workpiece (5) is cut into the workpiece (5) based on the guidance of the laser (1).
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Laser Beam Processing (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002364301A AU2002364301A1 (en) | 2002-01-04 | 2002-12-30 | Method and device for separating a material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200144.8 | 2002-01-04 | ||
DE10200144A DE10200144B4 (de) | 2002-01-04 | 2002-01-04 | Verfahren und Vorrichtung zum Trennen eines Werkstoffes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003055637A1 true WO2003055637A1 (de) | 2003-07-10 |
Family
ID=7711510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/014794 WO2003055637A1 (de) | 2002-01-04 | 2002-12-30 | Verfahren und vorrichtung zum trennen eines werkstoffes |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002364301A1 (de) |
DE (1) | DE10200144B4 (de) |
WO (1) | WO2003055637A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008017323A1 (de) * | 2006-08-11 | 2008-02-14 | H2B Photonics Gmbh | Vorrichtung und verfahren zum durchtrennenden bearbeiten von rohrförmigen bauteilen aus sprödbrüchigem material |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3696147B1 (de) | 2019-02-18 | 2021-03-31 | Schott AG | Verfahren und vorrichtung zum bearbeiten von glasrohrenden |
DE102020100051A1 (de) * | 2020-01-03 | 2021-07-08 | Schott Ag | Verfahren zur Bearbeitung sprödharter Materialien |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543979A (en) * | 1968-03-29 | 1970-12-01 | Pilkington Brothers Ltd | Cutting of glass with a laser beam |
DE4214159C1 (de) * | 1992-04-30 | 1993-11-18 | Schott Glaswerke | Verfahren zum Erzeugen von Bruchspannungen in Glas |
DE4305107A1 (de) * | 1993-02-19 | 1994-08-25 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Schneiden eines spröden Körpers mit Laserstrahlung |
DE4411037A1 (de) * | 1993-04-02 | 1994-10-06 | Fraunhofer Ges Forschung | Verfahren zum Schneiden von Hohlglas |
DE4405203A1 (de) * | 1994-02-18 | 1995-08-24 | Aesculap Ag | Verfahren und Vorrichtung zur Bearbeitung von Glas, Kunststoff, Halbleitern, Holz oder Keramik mittels Laserstrahlung |
WO2001032349A1 (de) * | 1999-10-29 | 2001-05-10 | Schott Spezialglas Gmbh | Verfahren und vorrichtung zum schnellen schneiden eines werkstücks aus sprödbrüchigem werkstoff |
DE19955824A1 (de) * | 1999-11-20 | 2001-06-13 | Schott Spezialglas Gmbh | Verfahren und Vorrichtung zum Schneiden eines Werkstückes aus sprödbrüchigem Werkstoff |
WO2001051425A1 (de) * | 2000-01-14 | 2001-07-19 | Schott Glas | Verfahren und vorrichtung zum durchtrennen von flachen werkstücken aus sprödbrüchigem material |
DE10004876A1 (de) * | 2000-02-04 | 2001-08-16 | Schott Glas | Verfahren und Vorrichtung zum Durchtrennen von flachen Werkstücken aus Quarzkristall |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5469120A (en) * | 1994-12-07 | 1995-11-21 | Lsi Logic Corporation | High performance voltage controlled oscillator |
DE19957317C2 (de) * | 1999-11-29 | 2002-01-31 | Vitro Laser Gmbh | Verfahren zur Anbringung von Sollbruchkanten an einem Werkstück |
-
2002
- 2002-01-04 DE DE10200144A patent/DE10200144B4/de not_active Expired - Fee Related
- 2002-12-30 WO PCT/EP2002/014794 patent/WO2003055637A1/de not_active Application Discontinuation
- 2002-12-30 AU AU2002364301A patent/AU2002364301A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543979A (en) * | 1968-03-29 | 1970-12-01 | Pilkington Brothers Ltd | Cutting of glass with a laser beam |
DE4214159C1 (de) * | 1992-04-30 | 1993-11-18 | Schott Glaswerke | Verfahren zum Erzeugen von Bruchspannungen in Glas |
DE4305107A1 (de) * | 1993-02-19 | 1994-08-25 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Schneiden eines spröden Körpers mit Laserstrahlung |
DE4411037A1 (de) * | 1993-04-02 | 1994-10-06 | Fraunhofer Ges Forschung | Verfahren zum Schneiden von Hohlglas |
DE4405203A1 (de) * | 1994-02-18 | 1995-08-24 | Aesculap Ag | Verfahren und Vorrichtung zur Bearbeitung von Glas, Kunststoff, Halbleitern, Holz oder Keramik mittels Laserstrahlung |
WO2001032349A1 (de) * | 1999-10-29 | 2001-05-10 | Schott Spezialglas Gmbh | Verfahren und vorrichtung zum schnellen schneiden eines werkstücks aus sprödbrüchigem werkstoff |
DE19955824A1 (de) * | 1999-11-20 | 2001-06-13 | Schott Spezialglas Gmbh | Verfahren und Vorrichtung zum Schneiden eines Werkstückes aus sprödbrüchigem Werkstoff |
WO2001051425A1 (de) * | 2000-01-14 | 2001-07-19 | Schott Glas | Verfahren und vorrichtung zum durchtrennen von flachen werkstücken aus sprödbrüchigem material |
DE10004876A1 (de) * | 2000-02-04 | 2001-08-16 | Schott Glas | Verfahren und Vorrichtung zum Durchtrennen von flachen Werkstücken aus Quarzkristall |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008017323A1 (de) * | 2006-08-11 | 2008-02-14 | H2B Photonics Gmbh | Vorrichtung und verfahren zum durchtrennenden bearbeiten von rohrförmigen bauteilen aus sprödbrüchigem material |
Also Published As
Publication number | Publication date |
---|---|
DE10200144A1 (de) | 2003-07-24 |
DE10200144B4 (de) | 2005-12-29 |
AU2002364301A1 (en) | 2003-07-15 |
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