EP4496674A1 - Laserbearbeitungsverfahren und laserbearbeitungsmaschine - Google Patents
Laserbearbeitungsverfahren und laserbearbeitungsmaschineInfo
- Publication number
- EP4496674A1 EP4496674A1 EP23702297.5A EP23702297A EP4496674A1 EP 4496674 A1 EP4496674 A1 EP 4496674A1 EP 23702297 A EP23702297 A EP 23702297A EP 4496674 A1 EP4496674 A1 EP 4496674A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser processing
- threshold value
- process variable
- processing machine
- evaluation device
- 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
- 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
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
- B23K31/10—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00 relating to cutting or desurfacing
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00 relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
Definitions
- the invention relates to a laser processing method, a laser processing machine and a computer program product according to the preamble of the independent claims.
- laser radiation from a laser processing machine or laser cutting machine with high power usually in the range of several kilowatts
- laser processing machines are assigned sensor devices that can record a large number of measured variables that are evaluated in a control device.
- An example of a sensor device is a camera, which records spatially resolved light intensities on a processed workpiece as a measurement variable.
- Different conclusions can be drawn from the light intensities regarding the quality of the processing. These conclusions can be used for monitoring functions and control functions of the laser processing machine. For example, a broken cut can be detected during laser cutting.
- the cut tear refers to an undesirable cut that is not made completely through the entire width of the workpiece.
- Changing process conditions can cause a previously calibrated and functional sensor system to work incorrectly. These changed process conditions can have various causes. Firstly, malfunctions or deviations on the laser processing machine, such as a dirty protective glass, heating of the optics or a change in the purity of one gas jet. These disturbances or deviations have an impact on the laser processing process or on the detection by the sensor device.
- deviations in the material to be processed such as the sheet thickness of a workpiece, the surface quality, the material composition or material inclusions. These deviations can influence the process and process management of laser processing.
- deviations in the selected process management such as a changed focus position, a changed focus diameter, changes in the distance from the workpiece to a nozzle at the exit of the laser beam or a changed gas pressure.
- a measure in the prior art is a further calibration process of the laser processing machine with sensor device, which is usually carried out in separate work steps, i.e. outside of the machine's running time. For example, it is necessary to recalibrate with regard to the transmission of the process radiation through the optical elements used and the sensor device or due to decreasing sensitivity of the sensor.
- An object of the invention is to provide a laser processing machine and a laser processing method as well as a computer program product with which malfunctions are reduced.
- a computer program product is provided in an evaluation device for carrying out the laser processing method.
- a laser processing machine is provided with an evaluation device, the evaluation device being designed to determine at least one threshold value So with respect to a light intensity-dependent first process variable F in at least one working area KAB or a working point KAP, a light intensity-independent second process variable K during operation of a laser processing machine in a working area KAB or working point KAP ZU to detect a change in the first process variable F in at least one working area KAB or in the working point KAP with changed process conditions and the at least one threshold value So to a threshold value SOR corresponding to the change in the first
- a control setpoint R of the laser processing method is assigned to the threshold value So and the control setpoint R is changed to a control setpoint ROR in accordance with the change in the first process variable F from a value Fo to a value FQR. If the first process variable F changes, the control setpoint is changed.
- the second process variable K is the trailing length or the inclination angle of a cutting front on a workpiece to be cut.
- the trailing length refers to the length in the feed direction of the workpiece from the cutting front on the top to the cutting front on the bottom of the workpiece.
- the angle of inclination of the cutting front can be measured from the top to the bottom of the workpiece.
- the method step of changing the threshold value So to the threshold value SQR in the working point KAP or in the working area KAB is carried out as the first process variable F in accordance with a light intensity recorded on the workpiece or a process variable that depends on the light intensity.
- a malfunction of the laser processing machine can be determined or a monitoring variable or control variable that is less dependent on changes in light intensity can be stabilized.
- a malfunction is advantageously detected with the changed threshold value SOR, which reflects the actual conditions of the laser processing machine under changed conditions better than the originally set threshold value So -
- the term malfunction in the context of the present disclosure also refers to faulty or undesirable ones Processing processes and processing errors.
- a broken cut is recognized as a malfunction based on the changed threshold value SOR.
- the changed threshold value SOR serves to reliably detect a cut break and to prevent incorrect detection of a cut cut or non-detection of a cut break with an unchanged threshold value So. Either there is no malfunction in the first case, but a malfunction is incorrectly recognized. In the second case, there is a malfunction, but no malfunction is detected.
- the threshold value SOR can be changed continuously in a control process of the laser processing method.
- the threshold value SOR of the light intensity-dependent first process variable F is adjusted in terms of control technology.
- control process or regulation takes place with the second process variable K as the controlled variable, the manipulated variable being a feed speed of the workpiece in the laser processing machine or the power supply to the laser processing machine.
- the controlled variable, the second process variable K is thus set by adjusting the manipulated variables mentioned.
- the threshold value So is changed or adjusted continuously or iteratively. This ensures that the threshold value So always corresponds to the current conditions of the laser processing machine. With this measure, a particularly high level of process stability can be achieved.
- the first process variable F is recorded depending on location and/or direction.
- the threshold value So can be adjusted depending on location and/or direction. This allows anisotropies or inhomogeneities of the laser processing machine in its working space to be taken into account and compensated for.
- the changes in the first process variable F can be recorded as a time-dependent manner and the threshold value So can be adjusted as a time-dependent manner.
- the threshold value So can therefore also be a function of the temporal progression of the information available. Temporal aspects can thus be taken into account when adjusting the threshold value So.
- Fig. 1 a schematic representation of a device for monitoring a laser processing method, in particular a laser cutting process, as part of a laser processing machine by recording an image of an area of the workpiece to be monitored, which contains an interaction area,
- Fig. 2 a schematic representation of a laser processing machine with a further device for monitoring a laser processing process, in particular a laser cutting process
- Fig. 3 a qualitative diagram with threshold values S of a first process variable F on the y-axis, a second process variable K on the x-axis, characteristic curves with working areas and a working point and a miscutting area of the laser processing machine in operation.
- Fig. 1 shows an exemplary structure of a device 14 for process monitoring and process control of a laser processing method, in particular a laser cutting process, on a workpiece 8 by means of a laser processing machine 1, of which only very schematically is the laser processing head 4 with a focusing lens 15 for focusing a laser beam 6 of the laser processing machine 1, one Cutting gas nozzle 16 and a deflection mirror 17 are shown. Further components can be included in the laser processing head 4. In the present case, the deflection mirror 17 is designed to be partially transparent and forms an inlet-side component for the device 14 for process monitoring.
- the laser beam 6 has a high power for processing the workpiece 8, here for cutting or separating the workpiece 8.
- the deflection mirror 17 reflects the incident laser beam 6, which, for example, has a wavelength of approximately 10 lm or 1 lm in the case of a solid-state laser used, and transmits data that is relevant for process monitoring and is reflected from the workpiece 8 and from an interaction area 18 of the laser beam 6 with the Workpiece 8 emitted radiation, process radiation 19, in a wavelength range which in the present example is between approximately 300nm and 2000nm.
- a scraper mirror or a hole mirror can also be used to supply the process radiation 19 to a camera 21.
- a further deflection mirror 20 is arranged, which deflects the process radiation 19 onto the geometrically high-resolution camera 21 as an image capture unit.
- the camera 21 can be a high-speed camera that is arranged coaxially to the laser beam axis 22 or to the scanning beam axis 22a of a scanning beam and thus independent of direction. In principle, there is the possibility of recording the image by the camera 21 using the incident light process between approximately 300nm and 2000nm, provided that an additional illumination source radiating in this wavelength range is provided, as well as alternatively recording the process's own luminescence or process radiation 19 in the UV and NIR wavelength ranges. IR.
- the camera 21 can also be provided as the only image capture unit, so that no additional scanning beam is necessary. In both cases, the camera 21 captures the process radiation 19 or the process lighting from the interaction area 18.
- focusing optical depicted as a lens System 23 which focuses the radiation or process radiation 19 relevant to process monitoring onto the camera 21.
- a filter 24 in the direction of the process radiation 19 in front of the camera 21 is advantageous if further radiation components or wavelength components are to be excluded from detection with the camera 21.
- the filter 24 can z. B. be designed as a narrowband bandpass filter.
- the camera 21 is optionally operated in the incident light method, i.e. H .
- An additional illumination source 25 is provided above the workpiece 8, which couples illumination radiation 27 into the beam path coaxially to the laser beam axis 22 via a further partially transparent mirror 26. In principle, however, the intensity of the process radiation 19 produced during laser processing is sufficient.
- the respective beam paths are coaxial in the vertical direction according to FIG. 1 .
- Laser diodes or diode lasers can be provided as an additional illumination source 25, as shown in FIG. 1 shown coaxially, but also off-axis to the laser beam axis 22 can be arranged.
- the additional illumination source 25 can, for example, also be arranged outside, in particular next to the laser processing head 4, and directed onto a surface 8a of the workpiece 8. Alternatively, the illumination source 25 can be arranged within the laser processing head 4. It goes without saying that the device 14 can also be operated without an additional lighting source 25.
- the camera 21 records an image B of an area 28 of the workpiece 8 to be monitored, which contains the interaction area 18, during a laser melt cutting process or laser flame cutting process.
- a relative movement occurs between the workpiece 8 and the Laser processing head 4 by moving the laser processing head 4 along the positive Y direction (see arrow) with the relative speed referred to as the feed speed V.
- the laser processing head 4 is also moved within the two planes in the x direction and z direction.
- a cutting front 29 is formed in advance of the interaction area 18, which is followed by a kerf 9 in the workpiece 8 in the negative Y direction.
- the image capture unit designed as a camera 21 is in signaling connection with an evaluation device 30.
- the evaluation device 30 is configured or programmed based on the evaluation of the recorded image B or a temporal sequence of images B of the area 28 to be monitored to detect at least one disturbance in the machining process, for example a cut break.
- the camera 21 and the evaluation device 30 form a sensor device.
- the evaluation device 30 evaluates the image B or a series of successively taken images B of the interaction area 18 in order to extract or extract features of the interaction area 18. to identify problems that indicate a disruption in the cutting process.
- the evaluation device 30 is in signaling connection with a control device or regulating device 31, which controls or regulates the laser cutting process and the laser processing method.
- Fig. 2 shows a side view of a highly schematic laser processing machine 1.
- the laser processing machine 1 is a laser cutting system.
- the workpiece 8, here a sheet metal, lies on the workpiece support 5 of the laser processing machine 1.
- the laser processing machine 1 has the laser processing head 4, which is a cutting head.
- the laser processing head 4 can be moved along a first translational axis 32, a second translational axis 33 and along an axis in the image plane relative to the workpiece support 5.
- the laser processing head 4 can be rotatable about one or more rotational axes in a manner not shown.
- the laser processing head 4 For processing, for example cutting, the workpiece 8, the laser processing head 4 or cutting head emits the laser beam 6. Using the laser beam 6, the workpiece 8 is cut along a trajectory. To support the processing of the workpiece 8 with the laser beam 6, the laser processing head 4 has the cutting gas nozzle 16. A cutting gas is supplied to the workpiece 8 through the cutting gas nozzle 16.
- the laser processing head 4 can also have a protective glass 34 for a device shown in FIG. 2 have optics not shown in detail.
- the laser processing machine 1 has the evaluation device 30 similar to FIG. 1, the control device 31 can also be connected to the evaluation device 30 for signaling purposes.
- the evaluation device 30 and connected control device 31 carry out the cutting process by specifying and adapting various process parameters or process variables F, K.
- Two of the process parameters can, for example, be a feed speed v and a focus position f, d. H . be the position of the focus of the laser beam 6 relative to the workpiece 8.
- Further process parameters or process variables can include a laser power, a focus diameter, a gas pressure of the cutting gas before it exits the cutting gas nozzle 16 Mass flow or the composition of the cutting gas through the cutting gas nozzle 16 and / or a distance of the cutting gas nozzle 16 from the workpiece 8.
- Fig. 3 shows a qualitative diagram for explaining an example of the invention. It was found that under normal machining conditions, variables that depend on the light intensity, light intensity-dependent or intensity-dependent process variables, can be easily distinguished with regard to a bad cut or a good cut.
- the process variables depend to varying degrees on the light intensity recorded by the camera 21 and the sensor device used. For example, the gray value of a camera pixel is proportional to the light intensity, while a geometric quantity in the camera image is independent of the light intensity. Nevertheless, geometric variables can also correlate with the light intensity, for example when threshold values are used for gray values of the camera images.
- the intensity-dependent variables alone can no longer reliably detect malfunctions or disruptions in the machining process.
- Difficult processing conditions can occur, for example, if there are disturbances in the light intensity of the scanning beam or the process radiation 19. Therefore, a second quantity is introduced which is independent of the light intensity or less dependent on the light intensity. With the help of the second variable or process variable, malfunctions or disruptions in the machining process can be detected and thus the susceptibility of the laser machining process to failure is reduced.
- An intensity-independent or sufficiently intensity-independent second process variable K is shown on the x-axis, for example the trailing length, which is the distance in the feed direction from the cutting front 29 at the top to the cutting front 29 at the bottom of the workpiece 8.
- Another intensity-independent process variable K is the angle of inclination of a cutting front 29, the angle between the top and the bottom of the workpiece 8 on the cut surface.
- These process variables K have proven to be particularly suitable for functionality.
- a first process variable F in this example an intensity-dependent miscut variable F, is drawn on the y-axis with threshold values S o and S O R, at which the miscut variable F enters in the evaluation device 30 after the threshold values S o and S O R have been exceeded Cut break is detected. Below the threshold values S o or S O R, d. H . if F ⁇ S o or F ⁇ S O R, is a
- the threshold values S o or S O R d. H . if F > S o or F > S O R, there is a miscut.
- the condition F ⁇ S o applies to the non-updated threshold value in normal operation if the threshold value has not changed, the condition F > S O R applies to the updated threshold value in disturbed operation if the threshold value has changed.
- a good cut or a bad cut is detected if the above conditions are met over a certain period of time.
- the threshold values S o and S O R are each located on characteristic curves at the limit of a defined miscut area, which is shown in Fig. 3 is shown hatched.
- Threshold S o changed to threshold S O R when the second process variable K is located in the working point KAP or in a working area KAB near the working point KAP.
- Several work areas KAB can also be defined here.
- the work area KAB or the work areas KAB can have any size, i.e. H . can be drawn along the x-axis in Fig. 3, designated by the second process variable K, range from a minimum measurable process variable K to the hatched miscut area.
- the control device or regulating device 31 can, for example, carry out a process stop of the laser processing machine 1 when an incorrect cut is detected.
- control device 31 recognizes when the machining process moves away from the defined operating point KAP.
- the control device 31 can then guide the machining process back towards the defined operating point KAP by regulating process parameters or process variables.
- the diagram also shows the two characteristic curves of the laser processing machine 1 during operation, which show the course of the first process variable F or miscutting variable F in relation to the second process variable K, the dashed characteristic curve indicating laser processing without disruptions or malfunctions and the solid characteristic curve indicating laser processing with faults or malfunctions, as described below.
- the working point KAP and an area along the process variable K around the working point KAP are also entered, the working area KAB -
- the measuring range of the laser processing machine 1 and the laser processing method is preferably at the working point KAP or around the
- the undisturbed error cutting size Fo on the dashed characteristic curve indicates undisturbed operation of the laser processing machine 1 in which the evaluation device 30 does not detect any malfunction.
- a threshold value So which indicates a malfunction of the laser processing machine 1
- a threshold of the undisturbed incorrect cut size, in FIG. 3 is referred to as the undisturbed F-threshold So.
- the threshold value So is determined before operation of the laser processing machine 1, or alternatively also during operation. If the incorrect cut size F exceeds the threshold value So during laser processing, a malfunction is detected and a cut break is detected. Optionally, the cut break is detected if the threshold value So is exceeded for a certain time. Detecting the malfunction is reliable without making any process changes to the laser processing machine 1.
- the first process variable F or miscutting variable F changes, which is recognized by the evaluation device 30.
- Process changes or disruptions lead to a shift in the characteristic curve in Fig. 3.
- the light intensity of the first process variable F, the miscut variable F changes when the laser beam 6 is disturbed by contamination, so that the camera 21 due to Scattered radiation more process lights or process radiation 19 detected.
- This changed first process variable is shown in Fig. 3 is referred to as the disturbed F-size FQR, i.e. H . disturbed miscut size.
- Fig. 3 shows a note FQR > SO.
- the process changes cause the first process variable F to shift in relation to the second process variable K.
- the characteristic curve as a functional relationship between the first process variable F and the second process variable K shifts.
- the disturbed miscut size F is shown as a solid characteristic curve. Without further measures, if the disturbed miscut size FQR is in the working area KAB and in particular at the working point KAP above the threshold value So, i.e. H . FQR > SO in Fig. 3, a broken section was incorrectly recognized.
- a change in the first process variable FQR is determined in the working area KAB and specifically in the working point KAP, which has a deviation from undisturbed recorded values of the first process variable Fo. If the machining process takes place in the working area KAB and especially in the working point KAP, a threshold value SOR is determined, above which a cut break is recognized as a malfunction, FQR > SOR. This newly set threshold value SOR, in Fig. 3, referred to as disturbed F-threshold SOR, is at a larger value, for example a higher detected light intensity of the process radiation 19.
- the threshold value So After moving or resetting the threshold value So to a threshold value SOR, a malfunction is only detected at a higher first process variable F or miscutting variable F, which corresponds to the actual conditions of the laser processing machine 1 during operation.
- the adjustment or changing of the threshold value So is carried out continuously during operation of the laser processing machine 1. Accordingly, the changed threshold value SOR is then used to detect a cut break instead of the original threshold value So, which is changed accordingly to a further threshold value of the process variable Fo, whereby the threshold value SOR can be changed continuously.
- the threshold value SOR of the first light intensity-dependent process variable F can be changed continuously in a control process.
- the functionality of the described laser processing machine 1 and the laser processing method is further illustrated by a hatched miscut area in FIG. 3 shown.
- the miscut area represents the area in the diagram of the second process variable K in which the evaluation device 30 detects a cut break.
- the hatched miscut area is defined as a rectangular area, but can have any shape in the diagram assume . In the hatched characteristic curve during undisturbed operation, the detected cut break is located at the
- the determination of the first process variable F can also take place within the known working area KAB if the working point KAP is not reached in uncontrolled operation and the shape of the first process variable as a miscutting variable F according to the characteristic curves in Fig. 3 is known in the relevant area.
- the second process variable K is controlled to the operating point KAP in order to minimize the working area KAB.
- a control setpoint R of the laser processing method is assigned to the threshold value So and the control setpoint R is changed to a control setpoint ROR in accordance with the change in the first process variable F from a value Fo to a value FQR - the evaluation device 30 detects this Working point KAP or working area KAB a change in the first process variable F, such as an increased light intensity due to a fault in the optical system 23, then this increased light intensity would be incorrectly assigned to a changed trailing length.
- the laser processing machine 1 would undesirably change the speed of advance of the workpiece 8 given the increased overtravel length.
- the correct overtravel length is determined using the light intensity-independent process variable K at the operating point KAP or KAB working area determined.
- control setpoint R is changed to the control setpoint ROR in such a way that the speed of advance of the workpiece 8 remains regardless of the change in the first process variable F.
- This feature prevents the control process from being disrupted by incorrect light intensity-dependent measurements of the first process variable F.
- the second process variable K so to speak, corrects incorrect measurements of the first process variable F with respect to the control of the laser processing machine 1 by adjusting the control setpoint ROR.
- the control setpoint ROR can also be the first process variable F despite
- the principle of changing the control setpoint R corresponds to the principle of changing the threshold value at which a cut break is detected.
- the described method for laser processing can also be used in other technical fields and is not limited to the technical field of laser processing machines 1.
- the method described can be used in all technical areas in which process variables change and threshold values are adjusted, changed or regulated automatically and without recalibration.
- List of reference symbols Laser processing machine
- Laser processing head Workpiece support Laser beam Workpiece a Surface kerf 0 cutting gas 4 device 5 focusing lens 6 cutting gas nozzle 7 deflection mirror 8 interaction area 9 process radiation 0 further deflection mirror 1 camera 2 laser beam axis 2a scanning beam axis 3 optical system 4 filter 5 illumination source 6 partially transparent mirror 7 illumination radiation 8 area to be monitored 9 cutting front 0 evaluation device 1 control device 2 first translational axis 3 second translational axis 4 protective glass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Quality & Reliability (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022106605.3A DE102022106605A1 (de) | 2022-03-22 | 2022-03-22 | Laserbearbeitungsverfahren und Laserbearbeitungsmaschine |
| PCT/EP2023/051859 WO2023179934A1 (de) | 2022-03-22 | 2023-01-26 | Laserbearbeitungsverfahren und laserbearbeitungsmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4496674A1 true EP4496674A1 (de) | 2025-01-29 |
Family
ID=85122599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23702297.5A Pending EP4496674A1 (de) | 2022-03-22 | 2023-01-26 | Laserbearbeitungsverfahren und laserbearbeitungsmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250010405A1 (de) |
| EP (1) | EP4496674A1 (de) |
| JP (1) | JP2025510038A (de) |
| CN (1) | CN118900741A (de) |
| DE (1) | DE102022106605A1 (de) |
| WO (1) | WO2023179934A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5642235B2 (ja) * | 2013-07-22 | 2014-12-17 | 三菱電機株式会社 | レーザ加工装置 |
| DE102013218421A1 (de) * | 2013-09-13 | 2015-04-02 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Vorrichtung und Verfahren zur Überwachung, insbesondere zur Regelung, eines Schneidprozesses |
| DE102018218006A1 (de) | 2018-10-22 | 2020-04-23 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Verfahren und Vorrichtung zur Überwachung eines Schneidprozesses |
| DE102018129407B4 (de) * | 2018-11-22 | 2023-03-30 | Precitec Gmbh & Co. Kg | Verfahren zum Schneiden eines Werkstücks mittels eines Laserstrahls und Laserbearbeitungssystem zum Durchführen des Verfahrens |
| DE102019127900B3 (de) | 2019-10-16 | 2021-04-01 | Precitec Gmbh & Co. Kg | Verfahren zur Überwachung eines Laserbearbeitungsprozesses zur Bearbeitung von Werkstücken |
| JP7356381B2 (ja) * | 2020-03-11 | 2023-10-04 | 株式会社アマダ | レーザ加工機及び加工方法 |
| DE112020007259T5 (de) * | 2020-05-29 | 2023-03-16 | Mitsubishi Electric Corporation | Laserbearbeitungssystem |
-
2022
- 2022-03-22 DE DE102022106605.3A patent/DE102022106605A1/de active Pending
-
2023
- 2023-01-26 CN CN202380028495.6A patent/CN118900741A/zh active Pending
- 2023-01-26 JP JP2024556258A patent/JP2025510038A/ja active Pending
- 2023-01-26 EP EP23702297.5A patent/EP4496674A1/de active Pending
- 2023-01-26 WO PCT/EP2023/051859 patent/WO2023179934A1/de not_active Ceased
-
2024
- 2024-09-19 US US18/889,439 patent/US20250010405A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023179934A1 (de) | 2023-09-28 |
| CN118900741A (zh) | 2024-11-05 |
| US20250010405A1 (en) | 2025-01-09 |
| JP2025510038A (ja) | 2025-04-14 |
| DE102022106605A1 (de) | 2023-09-28 |
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