WO2018168100A1 - Dispositif d'usinage laser et dispositif de production de données d'usinage - Google Patents

Dispositif d'usinage laser et dispositif de production de données d'usinage Download PDF

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Publication number
WO2018168100A1
WO2018168100A1 PCT/JP2017/042568 JP2017042568W WO2018168100A1 WO 2018168100 A1 WO2018168100 A1 WO 2018168100A1 JP 2017042568 W JP2017042568 W JP 2017042568W WO 2018168100 A1 WO2018168100 A1 WO 2018168100A1
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Prior art keywords
scanning line
scanning
processing
laser
laser beam
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PCT/JP2017/042568
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English (en)
Japanese (ja)
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幸喜 古川
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ブラザー工業株式会社
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Publication of WO2018168100A1 publication Critical patent/WO2018168100A1/fr

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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

Definitions

  • the present invention relates to a laser processing apparatus and a processing data generation apparatus.
  • Patent Document 1 describes a laser processing apparatus that irradiates a processing target with laser light and prints a processing pattern such as letters and numbers on the processing target.
  • a plurality of annular processing lines are set in a processing region of a processing pattern, and the annular processing lines are set in a direction along the outer contour of the processing pattern.
  • the ratio of the time to irradiate the laser when painting the inside of the outer contour of the processing pattern is often higher than the scanning method that scans in one direction in a raster pattern, and it is possible to paint at high speed. It was.
  • the laser processing apparatus described in Patent Literature 1 irradiates laser light onto the set processing lines and prints a processing pattern.
  • the scanning directions of the plurality of annular processing lines are the same.
  • the laser processing apparatus described in Patent Document 1 scans a plurality of annular processing lines in the same direction.
  • the machined surfaces after machining show different characteristics in different areas within the machining area.
  • FIG. 10 is a cross-sectional view when scanning is performed in the reverse scanning direction, and a diagram showing a difference in the amount of reflected light when each is observed from a certain direction.
  • the angle of the irradiation marks is perpendicular to the observed upper right It looks closer and looks brighter because it observes more light than when viewed from the top right.
  • the angle of the irradiation mark is almost horizontal from the upper right, and it looks darker with less light. This is the reason why the appearance differs depending on the scanning direction.
  • the object of the present invention has been proposed in view of the above-described problems, and when a processing pattern is printed by irradiating a laser beam onto a plurality of annular processing lines, reflection after processing in the processing region. It is an object of the present invention to provide a laser processing apparatus and a processing data generation apparatus capable of suppressing a difference in characteristics and obtaining a uniform printing result.
  • a laser processing apparatus condenses the laser light that is scanned by a laser light emitting unit that emits laser light for performing laser processing on a workpiece, a scanning unit that scans the laser light, and the scanning unit. Used by the controller to process the object to be processed from a processing pattern drawn on the object to be processed, and a controller for controlling the laser beam emitting part and the scanning part based on the processing data.
  • a machining data generating unit that generates machining data to be processed, and the machining data includes a plurality of scanning lines that are generated based on the machining pattern and formed as a ring along the contour of the machining pattern. The scanning direction of the line is opposite to the scanning direction of other adjacent scanning lines.
  • the processing data generation device includes a laser beam emitting unit that emits laser light for performing laser processing on a workpiece, a scanning unit that scans the laser beam, and the scanning unit that scans the laser beam.
  • a device that generates processing data used in a laser processing apparatus including a condensing unit that condenses laser light and a controller that controls the laser light emitting unit and the scanning unit based on processing data,
  • a processing data generation unit that generates processing data used by the controller to process the processing object from a processing pattern drawn on the processing object.
  • the processing data is based on the processing pattern.
  • a plurality of scanning lines formed as a ring along the contour of the processing pattern to be generated, and the scanning direction of the plurality of scanning lines is the same as the scanning direction of other adjacent scanning lines And it has a direction.
  • a laser processing apparatus 1 includes a print information creation apparatus 2 configured by a personal computer or the like, a laser processing apparatus main body 3, and a laser controller 6.
  • the laser processing apparatus main body 3 performs marking (printing) processing by two-dimensionally scanning the processing surface 7A of the processing object 7 with the laser beam L.
  • the laser controller 6 is configured by a computer, and is connected to the print information generating apparatus 2 so as to be capable of bidirectional communication, and is electrically connected to the laser processing apparatus main body 3.
  • the laser controller 6 drives and controls the laser processing apparatus main body 3 based on the print information, control parameters, various instruction information, and the like transmitted from the print information creation apparatus 2. *
  • the left direction, the right direction, the upper direction, and the lower direction in FIG. 1 are the front direction, the rear direction, the upper direction, and the lower direction, respectively. Therefore, the emission direction of the laser beam L (pulse laser) of the laser oscillator 21 is the forward direction.
  • the direction perpendicular to the main body base 11 and the laser beam L is the vertical direction.
  • the direction perpendicular to the vertical direction and the front-rear direction of the laser processing apparatus main body 3 is the left-right direction of the laser processing apparatus main body 3.
  • the laser processing apparatus main body 3 includes a main body base 11, a laser oscillation unit 12 that emits laser light L, an optical shutter 13, a light damper (not shown), and a half mirror (not shown). And a guide light section 15, a reflection mirror 16, an optical sensor 17, a galvano scanner 18, an f ⁇ lens 19, and the like, and covered with a substantially rectangular parallelepiped housing cover (not shown).
  • the laser oscillation unit 12 includes a laser oscillator 21, a beam expander 22, and a mounting base 23.
  • the laser oscillator 21 includes a laser medium and a passive Q switch.
  • the laser medium is excited by excitation light emitted from a pumping semiconductor laser (not shown) through the optical fiber 14 and oscillates laser light.
  • the passive Q switch functions as a Q switch that oscillates laser light oscillated by a laser medium as a pulsed pulse laser. Therefore, the laser oscillator 21 oscillates a pulse laser through the passive Q switch, and outputs a laser beam L (pulse laser) for performing marking (printing) processing on the processing surface 7A of the processing target 7.
  • the beam expander 22 adjusts the beam diameter of the laser light L (for example, enlarges the beam diameter), and is provided coaxially with the laser oscillator 21.
  • the mounting base 23 is mounted so that the laser oscillator 21 can adjust the optical axis of the laser light L, and is fixed to the upper surface on the rear side of the main body base 11 with respect to the center position in the front-rear direction by the mounting screws 25.
  • the optical shutter unit 13 includes a shutter motor 26 and a flat shutter 27.
  • the shutter motor 26 is composed of a stepping motor or the like.
  • the shutter 27 is attached to the motor shaft of the shutter motor 26 and rotates coaxially.
  • the shutter 27 is rotated to a position that blocks the optical path of the laser light L emitted from the beam expander 22, the shutter 27 reflects the laser light L to an optical damper provided in the right direction with respect to the optical shutter unit 13. .
  • the shutter 27 is rotated so as not to be positioned on the optical path of the laser beam L emitted from the beam expander 22, the laser beam L emitted from the beam expander 22 is transmitted to the front side of the optical shutter unit 13. It is incident on the half mirror arranged at.
  • the optical damper absorbs the laser light L reflected by the shutter 27.
  • the optical damper is cooled by a cooling device (not shown).
  • the half mirror is arranged so as to form an angle of 45 degrees obliquely left frontward with respect to the optical path of the laser light L.
  • the half mirror transmits almost all of the laser beam L incident from the rear side.
  • the half mirror reflects a part of the laser beam L incident from the rear side, for example, 1% of the laser beam L to the reflection mirror 16 at a reflection angle of 45 degrees.
  • the reflection mirror 16 is arranged in the left direction with respect to the substantially central position of the rear side surface on which the laser beam L of the half mirror is incident.
  • the guide light unit 15 converts visible laser light that is visible coherent light, for example, a visible semiconductor laser 28 that emits red laser light (see FIG. 2), and visible laser light emitted from the visible semiconductor laser 28 into parallel light. And a lens group (not shown) that converges.
  • the visible laser beam has a wavelength different from that of the laser beam L emitted from the laser oscillator 21.
  • the guide light unit 15 is arranged in the right direction with respect to a substantially central position where the laser light L of the half mirror is emitted. As a result, the visible laser beam is incident at a substantially central position where the laser beam L of the half mirror is emitted at an incident angle of 45 degrees with respect to the front side surface of the half mirror, that is, the reflecting surface. Is reflected on the optical path of the laser beam L.
  • the reflectivity of the half mirror has wavelength dependency.
  • the half mirror has a surface treatment of a multilayer film structure of a dielectric layer and a metal layer, has a high reflectance with respect to the wavelength of visible laser light, and light of other wavelengths It is configured to transmit almost (99%).
  • the reflection mirror 16 is arranged so as to form an angle of 45 degrees in the diagonally left front direction with respect to the front-rear direction parallel to the optical path of the laser light L, and one of the laser light L reflected on the rear side surface of the half mirror.
  • the part is incident at an incident angle of 45 degrees with respect to the approximate center position of the reflecting surface.
  • the reflection mirror 16 reflects the laser beam L incident on the reflection surface at an incident angle of 45 degrees toward the front side at a reflection angle of 45 degrees.
  • the optical sensor 17 is composed of a photodetector or the like that detects the emission intensity of the laser light L, and is disposed in the front side direction in FIG. 1 with respect to a substantially central position where the laser light L of the reflection mirror 16 is reflected. As a result, the optical sensor 17 receives the laser beam L reflected by the reflection mirror 16 and detects the emission intensity of the incident laser beam L. Accordingly, it is possible to detect the emission intensity of the laser light L output from the laser oscillator 21 via the optical sensor 17.
  • the galvano scanner 18 is attached to the upper side of the through-hole formed in the front end portion of the main body base 11, and lowers the laser beam L emitted from the laser oscillation unit 12 and the visible laser beam reflected by the half mirror. Two-dimensional scanning is performed.
  • the galvano scanner 18 includes a galvano X-axis motor 31 and a galvano Y-axis motor 32 that are fitted into the mounting portion 33 from the outside so that the respective motor shafts are orthogonal to each other. Scanning mirrors attached to the tip end face each other inside. Then, the rotation of each of the motors 31 and 32 is controlled to rotate each scanning mirror, thereby two-dimensionally scanning the laser light L and the visible laser light downward.
  • the two-dimensional scanning direction is a front-rear direction (X direction) and a left-right direction (Y direction).
  • the f ⁇ lens 19 condenses the laser beam L and the visible laser beam that are two-dimensionally scanned by the galvano scanner 18 on the processing surface 7A of the processing object 7 disposed below. Therefore, by controlling the rotation of the motors 31 and 32, the laser beam L and the visible laser beam are formed in a desired processing pattern on the processing surface 7A of the processing target 7 in the front-rear direction (X direction) and the left-right direction ( Two-dimensional scanning is performed in the Y direction).
  • circuit configuration of the printing information creation device 2, the laser processing device main body 3 and the laser controller 6 constituting the laser processing device 1 will be described with reference to FIG.
  • circuit configurations of the laser processing apparatus main body 3 and the laser controller 6 will be described with reference to FIG.
  • the laser processing apparatus main body 3 includes a galvano controller 35, a galvano driver 36, a laser driver 37, a semiconductor laser driver 38, and the like.
  • the laser controller 6 is electrically connected to a galvano controller 35, a laser driver 37, a semiconductor laser driver 38, an optical sensor 17, a shutter motor 26, and the like.
  • the laser controller 6 is connected to the print information generating device 2 so as to be capable of bidirectional communication.
  • the processing pattern transmitted from the print information generating device 2, the control parameters of the laser processing device main body 3, and various instruction information from the user. Etc. can be received.
  • the laser controller 6 includes an arithmetic device that performs overall control of the laser processing apparatus main body 3, a CPU 41 as a control device, a RAM 42, a ROM 43, a timer 44 that measures time, and the like.
  • the CPU 41, the RAM 42, the ROM 43, and the timer 44 are connected to each other via a bus line (not shown) and exchange data with each other.
  • the RAM 42 is for temporarily storing various calculation results calculated by the CPU 41, XY coordinate data of the machining pattern, and the like.
  • the ROM 43 stores various programs, and stores various programs such as calculating the XY coordinate data of the machining pattern based on the print information transmitted from the print information creation device 2 and storing it in the RAM 42. ing.
  • the ROM 43 stores data such as the font start point, end point, focal point, curvature, etc. of each character composed of straight lines and elliptical arcs for each font type.
  • the ROM 43 stores the thickness, depth, and number of processing patterns corresponding to the print information received from the print information creation device 2, the laser output of the laser oscillator 21, the laser pulse width of the laser light L, and the laser generated by the galvano scanner 18.
  • a program for storing various control parameters such as galvano scanning speed information indicating the speed at which the light L is scanned in the RAM 42 is stored.
  • the CPU 41 performs various calculations and controls based on various programs stored in the ROM 43. For example, the CPU 41 outputs XY coordinate data, galvano scanning speed information, and the like of the machining pattern calculated based on the print information input from the print information creation device 2 to the galvano controller 35. Further, the CPU 41 outputs laser drive information such as the laser output of the laser oscillator 21 and the laser pulse width of the laser light L set based on the print information input from the print information generating device 2 to the laser driver 37. The CPU 41 outputs a laser output control signal of the laser oscillator 21 to the laser driver 37 based on the emission intensity of the laser light L input from the optical sensor 17.
  • the CPU 41 outputs to the semiconductor laser driver 38 an on signal instructing start of lighting of the visible semiconductor laser 28 or an off signal instructing turning off.
  • the CPU 41 instructs the shutter motor 26 to rotate the shutter 27 to a position that blocks the optical path of the laser light L, or rotates the shutter 27 to a position that does not block the optical path of the laser light L.
  • An opening instruction signal for instructing is output.
  • the galvano controller 35 calculates the angles, angular velocities, and the like of the galvano X-axis motor 31 and the galvano Y-axis motor 32 based on the XY coordinate data of the processing pattern input from the laser controller 6, galvano scanning speed information, and the like.
  • the motor drive information representing the angular velocity is output to the galvano driver 36.
  • the galvano driver 36 drives and controls the galvano X-axis motor 31 and the galvano Y-axis motor 32 based on the motor drive information representing the angle and the angular velocity input from the galvano controller 35, and outputs the laser light L and the visible laser light 2 Dimension scan.
  • the laser driver 37 controls the laser oscillator 21 based on the laser output of the laser oscillator 21 input from the laser controller 6, the laser drive information such as the laser pulse width of the laser light L, the laser output control signal of the laser oscillator 21, and the like. To drive. Further, the semiconductor laser driver 38 drives the visible semiconductor laser 28 to turn on or off based on the ON signal or OFF signal input from the laser controller 6.
  • the print information creating apparatus 2 includes a control unit 51 that controls the entire print information creating apparatus 2, an input operation unit 55 including a mouse 52 and a keyboard 53 shown in FIG. LCD) 56, CD-ROM 57, and the like, CD-R / W 58 for writing and reading various data, programs and the like.
  • An input operation unit 55, a liquid crystal display 56, a CD-R / W 58, and the like are connected to the control unit 51 via an input / output interface (not shown).
  • the control unit 51 includes a CPU 61, a RAM 62, a ROM 63, a timer 65 for measuring time, a hard disk drive (hereinafter referred to as “HDD”) 66, and the like as an arithmetic device and a control device that perform overall control of the print information creation device 2.
  • the CPU 61, the RAM 62, the ROM 63, and the timer 65 are connected to each other via a bus line (not shown), and exchange data with each other.
  • the CPU 61 and the HDD 66 are connected via an input / output interface (not shown) to exchange data with each other.
  • the RAM 62 is for temporarily storing various calculation results calculated by the CPU 61.
  • the ROM 63 stores various programs.
  • the HDD 66 stores various application software programs and various data files.
  • control unit 51 constitutes the machining data generation unit of the present application.
  • control unit 51 configures the processing data generation unit of the present application.
  • the laser controller 6 may generate processing data as the processing data generation unit.
  • FIGS. 4 and 5 shows how the pattern of the hatching schematic diagram by the laser machining apparatus 1 of the present embodiment shown in FIG. 3 is preferably implemented by the machining data generation unit.
  • An example is shown below.
  • the control unit 51 extracts a vector indicating a contour (also referred to as an outer contour or a first contour) from the processing pattern in step S1 (hereinafter referred to as S1. The same applies to other steps). Extracting a vector indicating an outline means extracting a solid line portion in FIG.
  • the solid line portion in FIG. 6A means a processing pattern that originally existed before painting. In this embodiment, the original processing pattern is the starting point, and the painting algorithm is started.
  • the processing pattern may be called from a storage medium such as the ROM 63 or the CD-RW 58, or may be generated by the CPU 61 based on other information input.
  • the control unit 51 extracts a vector indicating a hole (also referred to as an inner contour or a second contour) from the machining pattern.
  • Extracting a vector indicating a hole means extracting a vector outside the halftone dot as shown in FIG. That is, the inner contour included in the region surrounded by the outer contour of the machining pattern is extracted.
  • This extraction method may be a method of extracting a hole vector using information of a hole and an outer contour originally included in the machining pattern, or a hole vector by detecting a vector surrounded by the outer contour. An extraction method may be used. If no hole vector is extracted, this step is skipped.
  • control unit 51 stores them in the storage area as processing data (also referred to as scanning line data) in S3.
  • processing data also referred to as scanning line data
  • the storage area may be the RAM 62 or the HDD 66.
  • the control unit 51 generates a scanning line composed of a ring along the outer contour inside the outer contour.
  • the control unit 51 calculates a vector parallel to a plurality of vectors constituting the outer contour, as shown in FIG. 6A. For example, if the processing data is such that the right side of the vector constituting the outer contour is always inside, the same vector is added to the right side of each outer contour vector based on the processed data.
  • the position to be added, that is, the fill density may be a predetermined fill density or a fill density input by the user. For example, the fill density may be determined so that the vector is added to a position where the distance from the outer contour vector is the same length as the beam diameter of the laser beam L on the processing surface 7A of the processing target 7.
  • the control unit 51 reverses the scanning direction of the scanning line generated inside the outer contour. That is, an operation for reversing the direction of all the vectors generated in step S4 is performed, and this operation also reverses the processing direction of each vector to the direction of the outer contour vector.
  • the operation of reversing the direction is the most important point of the present application. By repeating the operation, processed data in which the directions of adjacent scanning lines are opposite to each other is generated. Therefore, the difference in the reflection characteristics after processing within the processing area of the processing pattern can be suppressed, and a uniform printing result can be obtained.
  • the control unit 51 extracts the intersection point of the vector generated in the step of S5, and adds corrections using the extracted intersection point as the start point and end point of the vector.
  • An annular scanning line is generated by connecting a plurality of generated vectors. This is shown in FIG. If there is no intersection point for the reason that the angle between the outer vectors is obtuse, etc., the vector generated in step S5 is extended, and the point where the extended vector first intersects with another vector is the intersection point. The same processing is performed for each.
  • the vector generated from the vector information of the outer contour is treated again as a new outer contour, and the same vector generation processing is repeated again.
  • the control unit 51 stores the newly generated annular scanning line data in the storage area as processed data.
  • control unit 51 determines whether or not there is a location where the generated circular scanning lines (vectors) intersect.
  • An example of this is shown in FIG. 8A, where the generated circular scanning lines intersect at two points indicated by dotted circles, and a vector is generated with a specified fill density. It is impossible.
  • step S11 the control unit 51 performs correction using the annular scanning line data including the portion that has not been deleted as the processing data.
  • the control unit 51 deletes the scanning line at the intersecting portion.
  • FIG. 8C becomes a pattern as shown in FIG. 8D, and even in this example, the phenomenon of splitting into two islands occurs. Each of these two islands has a new outer contour, and the same vector generation process is performed again.
  • the control unit 51 determines whether or not the generated scanning line intersects the hole (inner outline). That is, as shown in FIG. 7A, when the inner scanning line (vector) is generated from the initial outer contour, the generated inner scanning line is the hole that originally existed in the machining pattern. It is determined whether or not the vector group is intersected.
  • control unit 51 determines that the scanning line and the hole intersect (S12: YES)
  • the control unit 51 extracts the intersection in S13.
  • the control unit 51 deletes a vector group between two points intersecting the hole vector group in the scanning line.
  • step S15 the control unit 51 performs a correction to connect the vector group of the scanning lines not deleted in step S14 and the vector group of the hole (inner outline). As shown in FIG. 7B, each of the two islands becomes a new outer contour.
  • the control unit 51 adds the corrected scanning line to the drawing path.
  • the control unit 51 adds an uncorrected scanning line to the drawing path unless the scanning line is corrected in S ⁇ b> 11 or S ⁇ b> 15.
  • the control unit 51 proceeds to the process of S17. Further, when the control unit 51 determines that the scanning line and the hole do not intersect (S12: NO), the control unit 51 proceeds to S16.
  • Processing data for filling with a plurality of annular scanning lines is generated by repeating the processes of S4 to S16 on a single or a plurality of islands. Processing data composed of a plurality of annular scanning lines is stored in a storage area as a continuous scanning order from the outside.
  • the control unit 51 determines whether or not the length of the scanning line has increased from the scanning line generated immediately before in S17. As shown in FIG. 9, when the scanning lines are sequentially generated from the outer contour toward the inner side, the filling finally reaches the vicinity of the center as shown in FIG. When the processing is performed, the result of the operation of the scanning line as shown by the dotted line in FIG. 9B is generated, and a reverse phenomenon occurs in which the scanning line becomes longer.
  • control unit 51 determines that the length of the scanning line has increased (S17: YES)
  • the control unit 51 deletes the scanning line (dotted scanning line in FIG. 9B) in S18 (FIG. 9). 9 (c)).
  • whether or not the filling can be continued is determined based on whether or not the length of the scanning line has increased from the previous scanning line. Not exclusively. For example, it may be determined that no further filling is possible because the total length of the vector ring generated immediately before is shorter than the total length of the currently generated vector ring, It may be determined that further painting is impossible because the area of is smaller than the area in the currently generated vector ring.
  • control unit 51 determines whether or not the calculation for all the scanning lines has been executed. When the calculation for all the scanning lines has been executed (S19: YES), the execution of the program is terminated. . If the control unit 51 determines in S19 that the calculation for all the scanning lines has not been executed (S19: NO), the control unit 51 returns to S4 and repeats the process.
  • a process of changing the printing start position (indicated by a dot) for each annular scanning line may be performed.
  • the laser irradiation conditions at the printing start position may differ from the conditions at other locations depending on the laser and control characteristics. If the printing start positions of the respective annular scanning lines are the same, the portions irradiated under conditions different from those in other places are concentrated, resulting in a non-uniform processing result. In order to reduce this, processing for shifting the printing start position of each annular scanning line at random or by user input may be performed.
  • the scanning directions of a plurality of annular processing lines are the same direction
  • the scanning directions of the plurality of processing lines are all in the same direction in one area when viewed from the center of the ring.
  • the scanning directions of the plurality of processing lines are all opposite to the one. If the scanning direction is different, the processing characteristics change, and the processed surface after processing exhibits reflection characteristics corresponding to the scanning direction. If the scanning direction is different, different reflection characteristics appear for light from the same direction.
  • the scanning directions of a plurality of adjacent annular processing lines are opposite to each other.
  • the scanning direction of the plurality of processing lines in one area when viewed from the center of the ring includes both directions of a certain direction and the opposite direction, and the scanning of the plurality of processing lines is also performed in the area on the other side when viewed from the center of the ring.
  • the direction includes both a certain direction and a reverse direction. Therefore, the difference between the reflection characteristic of the one side area and the reflection characteristic of the other side area becomes small. Therefore, when printing a processing pattern by irradiating laser light onto a plurality of annular processing lines, it is possible to suppress a difference in reflection characteristics after processing within the processing region and obtain a uniform printing result. I can do it.
  • Laser processing device Print information generation device (processing data generation device) 6 Laser controller 18 Galvano scanner (scanning unit) 19 f ⁇ lens (condenser) 21 Laser oscillator (laser beam emitting part) 35 Galvano Controller 51 Control Unit (Processing Data Generation Unit)

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne un cadre de caractère ou une autre région fermée à remplir. Des procédés de remplissage dans la région fermée d'une manière annulaire peuvent être utilisés, néanmoins, dans de tels procédés de remplissage, l'apparence diffère et manque d'uniformité selon l'emplacement. La production de données d'usinage dans lesquelles le sens de balayage d'une pluralité d'anneaux le long de l'usinage d'un cadre de caractère ou d'une autre région fermée est définie vers un sens qui est l'inverse du sens de balayage d'autres lignes de balayage adjacentes rendant l'apparence plus uniforme.
PCT/JP2017/042568 2017-03-14 2017-11-28 Dispositif d'usinage laser et dispositif de production de données d'usinage WO2018168100A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH116891A (ja) * 1997-06-17 1999-01-12 Mitsubishi Nuclear Fuel Co Ltd レーザマーキング方法
JP2007519525A (ja) * 2003-12-09 2007-07-19 マーケム コーポレーション 材料にマークされるイメージの領域のレーザによる塗り潰し
WO2012090671A1 (fr) * 2010-12-28 2012-07-05 株式会社ダイセル Procédé de fabrication d'un corps moulé composite

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017030007A (ja) * 2015-07-30 2017-02-09 日本電産コパル株式会社 ベクターマーキングデータ生成装置、及び画像形成装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH116891A (ja) * 1997-06-17 1999-01-12 Mitsubishi Nuclear Fuel Co Ltd レーザマーキング方法
JP2007519525A (ja) * 2003-12-09 2007-07-19 マーケム コーポレーション 材料にマークされるイメージの領域のレーザによる塗り潰し
WO2012090671A1 (fr) * 2010-12-28 2012-07-05 株式会社ダイセル Procédé de fabrication d'un corps moulé composite

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