WO2020230816A1 - 溝加工装置及び溝加工方法 - Google Patents
溝加工装置及び溝加工方法 Download PDFInfo
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- WO2020230816A1 WO2020230816A1 PCT/JP2020/019105 JP2020019105W WO2020230816A1 WO 2020230816 A1 WO2020230816 A1 WO 2020230816A1 JP 2020019105 W JP2020019105 W JP 2020019105W WO 2020230816 A1 WO2020230816 A1 WO 2020230816A1
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- laser beam
- shielding plate
- angle
- polygon mirror
- optical system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
- B23K26/0821—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head using multifaceted mirrors, e.g. polygonal mirror
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/125—Details of the optical system between the polygonal mirror and the image plane
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Definitions
- the present invention relates to a grooving apparatus and a grooving method for forming a groove in an object by a laser.
- the present application claims priority based on Japanese Patent Application No. 2019-091043 filed in Japan on May 14, 2019, the contents of which are incorporated herein by reference.
- a polygon mirror has been used to irradiate a laser beam in a direction that intersects the surface of a steel sheet in the direction of passing the steel sheet (scanning direction) to periodically form grooves on the surface of the steel sheet to improve iron loss characteristics.
- Grooving devices for improvement are known (see, for example, Patent Document 1).
- the laser beam LB incident on the polygon mirror 10 of the grooving apparatus is not a point light source but has a predetermined radius ⁇ .
- the laser beam LB when the laser beam LB is incident so as to fit on one surface of the polygon mirror 10, the laser beam LB reflected by the polygon mirror 10 causes a condenser lens (hereinafter, simply referred to as a lens) 12.
- a condenser lens hereinafter, simply referred to as a lens
- Light is collected at one place on the surface of the steel plate 20 through the light, and a groove is formed at the place on the surface of the steel plate 20.
- the laser beam LB when the laser beam LB is incident on a corner portion of the polygon mirror 10 that straddles two adjacent surfaces, the laser beam LB is reflected from each of the two adjacent surfaces. It is divided into two laser beams LB1 and LB2, and the divided laser beams LB1 and LB2 are focused on the surface of the steel plate 20 via the lens 12. As a result, the end of the groove in the scanning direction is processed by the laser beams LB1 and LB2 having insufficient energy densities, so that the end of the groove becomes shallow and a uniform groove cannot be formed.
- the divided laser beams LB1 and LB2 are irradiated in a direction different from that of the laser beam LB, the position different from the position where the groove on the surface of the steel plate 20 should be formed or the position other than the surface of the steel plate 20 is different. There is a risk that the equipment and the like of the above will be processed by mistake.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a grooving apparatus and a grooving method that suppress contamination of optical parts and realize uniform grooving and grooving depth.
- the grooving device is a grooving device that forms a groove on the surface of an object by a laser beam, and is a light source device that outputs the laser beam and outputs from the light source device.
- a polygon mirror that reflects the laser beam, a condensing optical system that is provided on the optical path of the laser beam reflected by the polygon mirror and condenses the laser beam, and the condensing optical system and the object.
- a shielding plate provided at a position for blocking a part of the laser beam focused via the focusing optical system and blocking a part of the laser beam with an object is provided.
- the shielding plate With respect to the surface of the object is ⁇ , and the critical angle is the maximum angle at which the laser beam fits in one plane mirror of the polygon mirror.
- the angle ⁇ of the shielding plate may be tilted within the range of 2 ⁇ c ⁇ 90 (°).
- the position where the laser beam reflected by the polygon mirror at an angle of 2 ⁇ c (°) is applied to the shielding plate is defined as a point P, and the difference in height between the point P and the point P0 is defined as Lp0. Assuming that the distance from the condensing optical system to the height of the point P is L2, Lp0 ⁇ L2 may be satisfied.
- a position adjusting unit for adjusting the position of the shielding plate in the scanning direction in which the laser beam is scanned by the polygon mirror is provided. You may be prepared.
- the groove processing apparatus includes a housing in which the shielding plate is arranged at a lower portion, and the housing is focused by the condensing optical system. It has an upper opening located on the optical path of the laser beam, and a transparent colorless window plate that does not absorb or reflect the laser beam may be attached to the upper opening.
- the grooving method is a grooving method for forming a groove on the surface of an object by a laser beam, and is an output step for outputting the laser beam by a light source device and a polygon.
- the laser beam is projected by using a reflection step for reflecting the laser beam output from the light source device by the mirror and a focused optical system provided on the optical path of the laser beam reflected by the polygon mirror.
- a condensing step for condensing light on the surface of an object is provided at a position between the condensing optical system and the object so as to block a part of the laser beam focused via the condensing optical system.
- a shielding step that shields a part of the laser beam by using the shield plate, and among the laser beams focused via the focusing optical system, the laser that is not blocked by the shielding plate.
- a part of the beam forms a groove on the surface of the object at the focal point of the laser beam, and in the shielding step, the laser beam is provided on the focusing optical system side with respect to the focal point and does not form the groove.
- the shielding plate that rotates with respect to the surface of the object is provided so as to shield the light.
- the angle of the shielding plate with respect to the surface of the object is set to ⁇ , and the maximum that the laser beam fits in one plane mirror of the polygon mirror.
- the critical angle which is the angle of
- the angle ⁇ of the shielding plate may be tilted within the range of 2 ⁇ c ⁇ 90 (°).
- the angle formed by the boundary between two adjacent plane mirrors and the reference position is ⁇ 0 (°), and when the shielding plate is tilted at an angle ⁇ and the rotation angle of the polygon mirror is ⁇ 0 (°), the above
- the position where the laser beam reflected by the polygon mirror at an angle of 2 ⁇ 0 (°) is applied to the shielding plate is set as a point P0, and when the shielding plate is tilted at the angle ⁇ , the rotation angle of the polygon mirror is
- the position where the laser beam reflected by the polygon mirror at an angle of 2 ⁇ c (°) at ⁇ c (°) is applied to the shielding plate is defined as a point P, and the height of the point P and the point P0.
- the position of the shielding plate is adjusted in the scanning direction in which the laser beam is scanned by the polygon mirror. Further steps may be provided.
- the shielding plate is arranged at a lower portion and is placed on the optical path of the laser beam focused by the focusing optical system.
- the housing having the located upper opening may further be provided with a housing mounting step for mounting the transparent colorless window plate that does not absorb or reflect the laser beam to the upper opening.
- the present invention by tilting the shielding plate, damage to the shielding plate that occurs when the shielding plate blocks the laser beam can be reduced, contamination of optical components can be suppressed, and uniform grooving and groove depth can be achieved. It is possible to provide a grooving apparatus and a grooving method for realizing the above.
- FIG. 2 schematically shows a configuration in which the grooving apparatus 100 according to the embodiment of the present invention is viewed from the rolling direction of the steel plate 20.
- the grooving device 100 is a device that periodically forms a groove on the surface of the steel plate 20 to be machined by a laser.
- the steel sheet 20 is made of, for example, a well-known grain-oriented electrical steel sheet material.
- the position of the grooving apparatus 100 in the width direction of the steel plate 20 is set based on the length and position of the grooves formed on the surface of the steel plate 20, and the longitudinal direction of the steel plate 20 is set based on the dimensions of the grooving apparatus 100.
- the position in is set.
- the width direction of the steel plate 20 is the scanning direction of the laser, and is the left-right direction of the paper surface in FIG.
- the longitudinal direction of the steel sheet 20 is the rolling direction of the steel sheet 20, and is the paper surface depth direction in FIG.
- the grooving device 100 includes a polygon mirror 10, a light source device 11, a collimator 11A, a lens 12, and a movable shielding plate device 30.
- the polygon mirror 10 has, for example, a regular polygonal prism, and a plurality of (N) plane mirrors are provided on each of a plurality of side surfaces constituting the regular polygonal prism.
- the laser beam LB is incident on the polygon mirror 10 from the light source device 11 via the collimator 11A in one direction (horizontal direction) and reflected by the plane mirror (reflection step).
- the polygon mirror 10 has a configuration in which it can rotate about the rotation axis O1 by a driving force from a motor (not shown), and the incident angle of the laser beam LB with respect to the plane mirror is sequentially adjusted according to the rotation angle of the polygon mirror 10. Change. As a result, the polygon mirror 10 sequentially changes the reflection direction of the laser beam LB, and scans the laser beam LB in the width direction of the steel plate 20.
- FIGS. 1A, 1B, 2 and 3 show an example in which the polygon mirror 10 has eight plane mirrors, the number of plane mirrors constituting the polygon mirror 10 is not particularly limited.
- the light source device 11 outputs a laser beam by a predetermined irradiation method (for example, continuous irradiation method or pulse irradiation method) under the control of a control unit (not shown) (output step).
- a predetermined irradiation method for example, continuous irradiation method or pulse irradiation method
- the collimator 11A is connected to the light source device 11 via an optical fiber cable 15.
- the collimator 11A adjusts the radius of the laser beam output from the light source device 11, and outputs the adjusted laser beam LB toward the polygon mirror 10.
- the laser beam LB output toward the polygon mirror 10 has a laser diameter having a predetermined radius ⁇ , and the laser diameter is circular, but may be elliptical.
- the condensing shape can be made elliptical by inserting a cylindrical lens or a cylindrical mirror between the collimator 11A and the polygon mirror 10 to change the beam radius of one axis (for example, the scanning direction).
- the lens 12 is a condensing optical system provided on the optical path of the laser beam reflected by the polygon mirror 10, and is manufactured by subjecting a single piece of glass to processing such as grinding and polishing.
- a mirror may be adopted instead of the condensing lens 12.
- the lens 12 may have a non-condensing portion (not shown) integrally provided on the outside (outer circumference) of the lens 12.
- the non-condensing portion is located in the optical path of the laser beams LB1 and LB2 that are divided and reflected from the corners of the polygon mirror 10 that straddle the two adjacent plane mirrors, and pass through the divided laser beams LB1 and LB2.
- the non-condensing portion is a donut-shaped plate-shaped planar optical system.
- the non-focusing portion has no focal point because the focal length is infinite. Since the laser beams LB1 and LB2 that have passed through the non-condensing portion do not condense, the energy density does not increase.
- the non-condensing unit may not be a planar optical system, but may be, for example, an optical system that diverges the divided laser beams LB1 and LB2.
- the movable shielding plate device 30 described later is provided between the lens 12 and the steel plate 20.
- the movable shielding plate device 30 is arranged on the optical path of the laser beam LB that is reflected by the polygon mirror 10 and passes through the lens 12.
- the laser beam LB reflected by the polygon mirror 10 passes through the lens 12 and the movable shielding plate device 30 and is focused on the surface of the steel plate 20 (condensing step), whereby a groove is formed on the surface of the steel plate 20.
- the grooving apparatus 100 may be provided with a supply nozzle (not shown) for injecting an assist gas for blowing off the melt at a predetermined position. Further, the collimator 11A, the polygon mirror 10, the lens 12, and the movable shielding plate device 30 of the grooving apparatus 100 are covered with a housing (not shown), and the inside of the housing is filled with a clean gas to obtain a positive pressure. It may be possible to prevent the melt or the like from entering the housing and prevent the optical system of the grooving apparatus 100 from being contaminated by the melt or the like.
- the rotation angle ⁇ (°) of the polygon mirror 10 is defined by the central angle with respect to the reference position for each plane mirror constituting the polygon mirror 10.
- the maximum angle at which the incident laser beam LB fits on one surface (one plane mirror) of the polygon mirror 10 is defined as the critical angle ⁇ c. That is, the critical angle ⁇ c is when the laser beam LB is totally reflected by one plane mirror without being divided by the corners straddling the two adjacent plane mirrors (two plane mirrors) of the polygon mirror 10. This is the maximum angle at which the center LBc of the laser beam LB is located. Assuming that the radius (circumscribed radius) of the circumscribed circle C1 of the polygon mirror 10 is R and the radius of the laser beam LB incident on the polygon mirror 10 is ⁇ , the critical angle ⁇ c is defined by the following equation (1).
- the movable shielding plate device 30 has a box-shaped housing 31 formed of a metal material or the like, and a pair of shielding plates 35 arranged to face each other in the scanning direction x of the laser beam LB. It has a configuration arranged at the lower part in the housing 31.
- the shielding plate 35 rotates with the rotating portion 37a as a fulcrum, and 35a in FIG. 4 shows a shielding plate when the shielding plate 35 is tilted by rotation.
- the housing 31 is formed with an upper opening 31a at the upper part and a lower opening 31b at the lower part located on the optical path of the laser beam LB focused by the lens 12, and the upper opening 31a is colorless and transparent.
- the window plate 33 is mounted (housing mounting step).
- the window plate 33 is, for example, a glass plate.
- the window plate 33 is a transmissive window plate that does not absorb or reflect the laser beam.
- the material is a synthetic quartz glass plate coated with antireflection films on both sides.
- the laser beam LB from the lens 12 that has passed through the window plate 33 passes through the lower opening 31b of the housing 31 and irradiates the surface of the steel plate 20.
- the polygon mirror 10 is rotationally driven, so that the tilt angle of the laser beam LB changes according to the rotation angle of the polygon mirror 10, and the laser is displayed on the surface of the steel plate 20.
- the irradiation position of the beam LB moves in the width direction of the steel plate 20. That is, the laser beam LB passing through the movable shielding plate device 30 moves on the surface of the steel plate 20 with the width direction of the steel plate 20 as the scanning direction x.
- the lower opening 31b of the housing 31 is provided with a shielding plate 35 in the vicinity of the opening end 31c arranged opposite to each other in the scanning direction x of the laser beam LB.
- the shielding plate 35 is provided between the lens 12 and the steel plate 20. That is, the shielding plate 35 is provided on the lens 12 side of the focal point of the laser beam LB that has passed through the lens 12.
- the shielding plate 35 blocks a part of the laser beam focused through the lens 12 (shielding step).
- the pair of shielding plates 35 arranged to face each other in the scanning direction x of the laser beam LB have the same configuration, and are formed in a plate shape by, for example, a steel material.
- These shielding plates 35 include a position adjusting portion 34 that adjusts the position of the shielding plate 35 in the scanning direction x of the laser beam LB, and an angle adjusting portion that adjusts the angle of the plate surface of the shielding plate 35 with respect to the surface of the steel plate 20. 36 and are provided respectively.
- the position adjusting portion 34 is, for example, a guide groove formed in the lower opening 31b of the housing 31, and the guide groove is formed along the scanning direction x of the laser beam LB.
- the shielding plate 35 is slidably provided in the guide groove, and the shielding plate 35 is moved along the guide groove in the scanning direction x of the laser beam LB (shielding plate position adjusting step).
- the position adjusting unit 34 adjusts the position of the shielding plate 35 in the scanning direction x of the laser beam LB so that the laser beam LB passing through the lens 12 moves from the center side of the steel plate 20 to the end side of the steel plate 20.
- the laser beam LB moved toward the end side in the width direction of the steel plate 20 is irradiated to the shielding plate 35.
- the range of the scanning direction x (the width direction of the steel plate 20) in which the laser beam LB irradiates the shielding plate 35 can be adjusted.
- the shielding plate 35 shields a part of the laser beam LB that is focused via the lens 12 and moves in the scanning direction x at the end in the scanning direction, thereby irradiating the surface of the steel plate 20 with the laser beam LB at the end in the scanning direction.
- the groove is not formed on the surface of the steel plate 20.
- the remaining part of the laser beam LB that is not blocked by the shielding plate 35 is the steel plate 20 at the focal point of the laser beam LB. It will be focused on the surface to form grooves.
- the shielding plate 35 is an unnecessary beam of the laser beam LB having a high energy density reflected by the plane mirror of the polygon mirror 10 driven to rotate, which is irradiated other than the groove processing position on the steel plate 20, or a polygon having a low energy density.
- the angle adjusting unit 36 guides the shielding plate 35 with a rotating portion 37a that makes the shielding plate 35 rotatable with respect to the lower portion of the housing 31, and a guide portion 37b that defines a trajectory on which the shielding plate 35 tilts.
- the portion 37b is provided with a connecting portion 37c for rotatably connecting the shielding plate 35.
- the shielding plate 35 rotates so that the surfaces of the shielding plate 35 face each other.
- the rotating portion 37a rotates the shielding plate 35 around the rotation axis to incline the flat plate surface of the shielding plate 35 with respect to the surface of the steel plate 20.
- the rotating portion 37a and the guide portion 37b are provided by the position adjusting portion 34 so as to be slidable along the scanning direction of the laser beam LB in conjunction with the shielding plate 35. That is, the rotating portion 37a is provided in, for example, the position adjusting portion 34, and has a configuration that can be moved along the scanning direction of the laser beam LB by sliding the position adjusting portion 34.
- the guide portion 37b is, for example, a guide groove provided along the inner wall of the housing 31 of the position adjusting portion 34, and can be moved in the scanning direction by sliding the position adjusting portion 34, and is a connecting portion. By guiding the trajectory of 37c, the shielding plate 35 having the connecting portion 37c can be moved along the scanning direction of the laser beam LB.
- the guide portion 37b is an annular member made of, for example, a metal material and having a curved elongated hole, and the connecting portion 37c provided on the shielding plate 35 moves along the curved elongated hole.
- the connecting portion 37c is, for example, a protrusion member arranged in the elongated hole of the guide portion 37b, and moves along the elongated hole of the guide portion 37b.
- the shielding plate 35 rotates around a rotating portion 37a provided at the lower end of the shielding plate 35, and the connecting portion 37c moves along the curved elongated hole of the guide portion 37b, whereby the steel plate is formed.
- the tilt angle with respect to the surface of 20 can be changed.
- the shielding plate 35 rotates with respect to the surface of the steel plate 20 so as to shield the laser beam LB that does not form a groove. Therefore, by adjusting the angle of the shielding plate 35 with respect to the steel plate 20, the angle adjusting unit 36 suppresses the irradiation of the laser beam LB having a high energy density when the laser beam LB is irradiated to the shielding plate 35. Therefore, damage to the shielding plate 35 due to irradiation with the laser beam LB can be reduced.
- the laser beam LB has a laser diameter having a predetermined radius ⁇ , but the size of the laser diameter appearing on the shielding plate 35 due to the change in the angle formed by the shielding plate 35 with respect to the laser beam LB.
- the energy density of the laser beam LB irradiated to the shielding plate 35 changes, so that the angle can be set to reduce damage to the shielding plate 35.
- the distance is the same as the distance from the lens 12 to the steel plate 20 (that is, that is).
- the object at the focal length) will be irradiated with a high energy density, but the farther the distance is, the smaller the energy density will be. Therefore, by tilting the shielding plate 35 provided on the lens 12 side of the focal point to balance the distance from the lens 12 and the change in the laser diameter, the energy density is made suitable, and the shielding plate 35 Damage can be reduced.
- 10a shows a part of the plane mirror when the polygon mirror 10 is rotated.
- the focal length of the lens 12, which is a condensing optical system is f.
- L1 be the distance from the plane mirror of the polygon mirror 10 to the lens 12 which is a condensing optical system. Further, when the rotation angle ⁇ of the polygon mirror 10 is ⁇ c (°), the laser beam LB reflected by the polygon mirror 10 at an angle of 2 ⁇ c (°) from the lens 12 which is a condensing optical system is transmitted to the shielding plate 35.
- L2 be the distance to the height of the point P, which is the position to be irradiated. In the present embodiment, as shown in FIG. 5, the lower end portion of the shielding plate 35 where the rotating portion 37a is located is the point P.
- PL1 is a perpendicular line drawn from the polygon mirror 10 toward the steel plate 20 through which the laser beam LB passes when the rotation angle ⁇ of the polygon mirror 10 is 0 (°). Further, when the rotation angle ⁇ of the polygon mirror 10 is ⁇ c (°), the laser beam LB reflected by the polygon mirror 10 is horizontally extended from the point P at the position where the shielding plate 35 is irradiated toward the perpendicular line PL1. Let the straight line be XL1. Then, assuming that the point where the perpendicular line PL1 through which the laser beam LB passes and the straight line XL1 from the point P intersect is P1, the distance d between the point P and the point P1 can be expressed by the following equation (2). As described above, ⁇ indicates the radius of the laser beam LB incident on the polygon mirror 10 (FIG. 3).
- the position adjusting unit 34 moves the shielding plate 35 in the scanning direction of the laser beam LB, and sets the distance d from the perpendicular line PL1 through which the laser beam LB passes to the position of the shielding plate 35 by the above-described equation (2). ) Is adjusted to the calculated distance d.
- the angle ⁇ of the shielding plate 35 with respect to the surface of the steel plate 20 will be described with reference to FIG.
- the angle ⁇ of the shielding plate 35 is the angle formed by the surface direction of the surface of the steel plate 20 and the plate surface of the shielding plate 35.
- the energy density of the laser beam LB is highest because the angle ⁇ of the shielding plate 35 with respect to the surface of the steel plate 20 causes the laser beam LB to vertically incident on the shielding plate 35. This is the case of 2 ⁇ c (°).
- the energy density Ipc of the laser beam LB can be expressed by the following equation (3).
- P indicates the laser power (W) of the laser beam LB.
- Ipc P / ⁇ ⁇ ( ⁇ / f ⁇ (f ⁇ L2)) 2 ⁇ ...
- the energy density Ip of the laser beam LB when the shielding plate 35 is tilted at an angle ⁇ can be expressed by the following equation (4).
- Ip Ipc x cos ( ⁇ -2 ⁇ c) ... (4)
- the angle ⁇ of the shielding plate 35 When the angle ⁇ of the shielding plate 35 is from 0 (°) to 2 ⁇ c (°), the focusing diameter of the laser beam LB becomes small and the energy density Ip of the laser beam LB becomes high at a portion other than the point P, which is not desirable. Further, if the angle ⁇ of the shielding plate 35 is more than 90 (°), the shielding plate 35 is tilted too much, and the influence of the laser beam LB irradiated on the side surface of the upper portion of the shielding plate 35 becomes large, so that unexpected processing is performed. Is done, which is not desirable.
- the angle ⁇ of the shielding plate 35 is 2 ⁇ c ⁇ 90 (°).
- the angle adjusting unit 36 changes the inclination of the shielding plate 35 with the rotating portion 37a as the rotation axis, and sets the angle ⁇ of the shielding plate 35 with respect to the surface of the steel plate 20 by 2 ⁇ c ⁇ 90 (°). Adjust so that it tilts within the range of.
- the shielding plate 35 It is more desirable that the angle ⁇ of is 80 (°) or less.
- the shielding plate 35 is tilted at an angle ⁇
- the laser beam LB reflected by the polygon mirror 10 at an angle of 2 ⁇ 0 (°) when the rotation angle ⁇ of the polygon mirror 10 is ⁇ 0 (°) is the shielding plate 35.
- point P0 be the position where the light is irradiated.
- Lp0 (L1 + L2) x tan2 ⁇ 0 x sin ⁇ / ⁇ sin (90 + 2 ⁇ 0- ⁇ ) x cos2 ⁇ 0 ⁇ ... (5)
- the height difference Lp0 must be smaller than the distance L2 from the lens 12 which is the condensing optical system to the height of the point P. Therefore, Lp0 ⁇ L2 must be satisfied.
- the groove processing apparatus 100 when the laser beam LB that has passed through the lens 12 is blocked by the shielding plate 35 provided between the lens 12 and the steel plate 20, and the end portion of the groove is formed on the surface of the steel plate 20.
- the angle adjusting unit 36 tilts the shielding plate 35 with respect to the surface of the steel plate 20 at an angle ⁇ .
- damage to the shielding plate 35 that occurs when the shielding plate 35 shields the laser beam LB can be reduced. Therefore, it is possible to realize uniform grooving and grooving depth without contaminating the optical parts, and to produce a product having excellent iron loss characteristics.
- the position of the shielding plate 35 in the scanning direction x in which the laser beam LB is scanned by the polygon mirror 10 is adjusted by the position adjusting unit 34.
- the groove processing apparatus 100 when the laser beam LB that has passed through the lens 12 moves from the center side of the steel plate 20 to the end side of the steel plate along the scanning direction x, the laser reflected by the plane mirror of the polygon mirror 10 By irradiating the shielding plate 35 with the beam LB, a groove having a uniform groove depth can be formed on the surface of the steel plate 20 even at the end of the groove. Further, the range of the scanning direction x (the width direction of the steel plate 20) in which the laser beam LB is applied to the shielding plate 35 can be adjusted.
- the angle ⁇ of the shielding plate 35 when adjusting the angle ⁇ of the shielding plate 35, it is desirable that the angle ⁇ is in the range of 2 ⁇ c ⁇ 90 (°) while satisfying Lp0 ⁇ L2 as a constraint condition. Further, the most desirable angle ⁇ of the shielding plate 35 is preferably a center angle ⁇ 5 (°) in the range of 2 ⁇ c ⁇ 90 (°) and an angle range satisfying the constraint condition of Lp0 ⁇ L2. ..
- the shielding plate of the above-described embodiment may be formed of a material that absorbs the laser beam LB.
- black alumite treatment or absorption paint is applied to the surface of the shielding plate.
- indirect water cooling may be performed by providing a water channel inside the shielding plate in order to cool the shielding plate.
- the groove processing device 100 provided with both the position adjusting unit 34 and the angle adjusting unit 36 has been described, but the present invention is not limited to this, and the groove processing provided with only the angle adjusting unit 36 is not limited to this. It may be a device.
- the present invention is not limited to this, and for example, the shielding plate 35 is scanned by the laser beam LB.
- Various configurations may be applied as long as the mechanism can be moved in a direction.
- the shielding plate 35 is shielded by rotating around the rotating portion 37a provided at the base end of the shielding plate 35 and moving the shielding plate 35 along the guide portion 37b.
- the angle adjusting portion 36 for inclining the plate 35 is provided, the present invention is not limited to this.
- only the rotating portion 37a may be provided to rotate the shielding plate 35 so that the angle can be adjusted, or only the guide portion 37b may be provided to tilt the shielding plate 35 so that the angle can be adjusted. ..
- the laser power of the laser beam LB is 1000 (W)
- the radius ⁇ of the laser beam LB is 6 (mm)
- the number of faces N of the plane mirror of the polygon mirror 10 is eight
- the angle ⁇ 0 was 22.5 (°)
- the critical angle ⁇ c was 19.9 (°).
- the distance L1 from the plane mirror of the polygon mirror 10 to the lens 12 of the condensing optical system is 50 (mm)
- the distance L2 from the lens 12 to the height of the point P of the shielding plate 35 is 150 (mm)
- the lens 12 When the distance d between the point P and the point P1 was calculated from the above equation (2) with the focal length f being 200 (mm), the distance d was 164.7 (mm).
- the position of the shielding plate 35 can be adjusted by the position adjusting unit 34 in the scanning direction of the laser beam LB based on the above calculation result of the distance d.
- the height difference Lp0 between the point P and the point P0 when the shielding plate 35 was tilted at the angle ⁇ was calculated, and the relationship between the height difference Lp0 and the angle ⁇ of the shielding plate 35 was investigated.
- the results shown in FIG. 6 were obtained.
- the angle ⁇ (°) of the shielding plate 35 is shown on the horizontal axis
- the height difference Lp0 (mm) between the points P and P0 when the shielding plate 35 is tilted at the angle ⁇ is shown on the vertical axis. ing.
- the minimum angle 2 ⁇ c (°) of the angle ⁇ of the shielding plate 35 is about 40 (°)
- the maximum angle of the angle ⁇ of the shielding plate 35 is about 70 (°) from the constraint condition.
- the optimum range of the angle ⁇ of the shielding plate 35 is in the range of 40 (°) to 70 (°), but it can be seen that the most desirable angle ⁇ is 55 (°), which is the central angle. From the above, the angle ⁇ of the shielding plate 35 can be adjusted by the angle adjusting unit 36 based on the above calculation result.
- the present invention by tilting the shielding plate, damage to the shielding plate that occurs when the shielding plate blocks the laser beam can be reduced, contamination of optical components can be suppressed, and uniform grooving and groove depth can be achieved. It is possible to provide a grooving apparatus and a grooving method for realizing the above. Therefore, the present invention has extremely high industrial applicability.
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Abstract
Description
(1)本発明の一実施形態に係る溝加工装置は、レーザビームによって対象物の表面に溝を形成する溝加工装置であって、前記レーザビームを出力する光源装置と、前記光源装置から出力された前記レーザビームを反射するポリゴンミラーと、前記ポリゴンミラーで反射された前記レーザビームの光路上に設けられ、前記レーザビームを集光する集光光学系と、前記集光光学系と前記対象物との間で、前記集光光学系を介して集光された前記レーザビームの一部を遮る位置に設けられ、前記レーザビームの一部を遮る遮蔽板と、を備え、前記集光光学系を介して集光された前記レーザビームのうち、前記遮蔽板で遮られない前記レーザビームの一部は、前記レーザビームの焦点において前記対象物の表面に溝を形成し、前記遮蔽板は、前記焦点よりも前記集光光学系側に設けられ、前記溝を形成しない前記レーザビームを遮蔽するように前記対象物の表面に対して回動する。
(2)上記(1)に記載の溝加工装置において、前記対象物の表面に対する前記遮蔽板の角度をψとし、前記レーザビームが前記ポリゴンミラーの一枚の平面鏡に収まる最大の角度である臨界角をθc(°)としたとき、前記遮蔽板の角度ψが、2θc<ψ≦90(°)の範囲で傾けられてよい。
(3)上記(2)に記載の溝加工装置において、前記ポリゴンミラーの回転軸から前記ポリゴンミラーの平面鏡に垂線を下した位置を基準位置としたときに、前記ポリゴンミラーで隣接する二枚の平面鏡の境目と前記基準位置とのなす角度をθ0(°)とし、前記遮蔽板が角度ψで傾いている際、前記ポリゴンミラーの回転角度がθ0(°)のときに前記ポリゴンミラーで2θ0(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点P0とし、前記遮蔽板が前記角度ψで傾いている際、前記ポリゴンミラーの回転角度がθc(°)のときに前記ポリゴンミラーで2θc(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点Pとし、前記点Pと前記点P0との高さの差をLp0とし、前記集光光学系から前記点Pの高さまでの距離をL2とすると、Lp0<L2を満たしてよい。
(4)上記(1)から(3)のいずれか1項に記載の溝加工装置において、前記ポリゴンミラーにより前記レーザビームが走査される走査方向において前記遮蔽板の位置を調整する位置調整部を備えてよい。
(5)上記(1)から(4)のいずれか1項に記載の溝加工装置において、前記遮蔽板を下部に配置する筐体を備え、前記筐体は、前記集光光学系により集光された前記レーザビームの光路上に位置する上部開口部を有し、前記上部開口部には、前記レーザビームを吸収または反射しない透過する無色透明の窓板が装着されてよい。
(6)本発明の一実施形態に係る溝加工方法は、レーザビームによって対象物の表面に溝を形成する溝加工方法であって、光源装置により、前記レーザビームを出力する出力ステップと、ポリゴンミラーにより、前記光源装置から出力された前記レーザビームを反射させる反射ステップと、前記ポリゴンミラーで反射された前記レーザビームの光路上に設けられた集光光学系を用いて、前記レーザビームを前記対象物の表面に集光させる集光ステップと、前記集光光学系と前記対象物との間で、前記集光光学系を介して集光された前記レーザビームの一部を遮る位置に設けられた遮蔽板を用いて、前記レーザビームの一部を遮る遮蔽ステップと、を備え、前記集光光学系を介して集光された前記レーザビームのうち、前記遮蔽板で遮られない前記レーザビームの一部は、前記レーザビームの焦点において前記対象物の表面に溝を形成し、前記遮蔽ステップでは、前記焦点よりも前記集光光学系側に設けられ、前記溝を形成しない前記レーザビームを遮蔽するように前記対象物の表面に対して回動する前記遮蔽板を設ける。
(7)上記(6)に記載の溝加工方法において、前記遮蔽ステップでは、前記対象物の表面に対する前記遮蔽板の角度をψとし、前記レーザビームが前記ポリゴンミラーの一枚の平面鏡に収まる最大の角度である臨界角をθc(°)としたとき、前記遮蔽板の角度ψを、2θc<ψ≦90(°)の範囲で傾けてよい。
(8)上記(7)に記載の溝加工方法において、前記遮蔽ステップでは、前記ポリゴンミラーの回転軸から前記ポリゴンミラーの平面鏡に垂線を下した位置を基準位置としたときに、前記ポリゴンミラーで隣接する二枚の平面鏡の境目と前記基準位置とのなす角度をθ0(°)とし、前記遮蔽板が角度ψで傾いている際、前記ポリゴンミラーの回転角度がθ0(°)のときに前記ポリゴンミラーで2θ0(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点P0とし、前記遮蔽板が前記角度ψで傾いている際、前記ポリゴンミラーの回転角度がθc(°)のときに前記ポリゴンミラーで2θc(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点Pとし、前記点Pと前記点P0との高さの差をLp0とし、前記集光光学系から前記点Pの高さまでの距離をL2とすると、Lp0<L2を満たしてよい。
(9)上記(6)から(8)のいずれか1項に記載の溝加工方法において、前記ポリゴンミラーにより前記レーザビームが走査される走査方向において前記遮蔽板の位置を調整する遮蔽板位置調整ステップを更に備えてよい。
(10)上記(6)から(9)のいずれか1項に記載の溝加工方法において、前記遮蔽板を下部に配置し、前記集光光学系により集光された前記レーザビームの光路上に位置する上部開口部を有する筐体には、前記レーザビームを吸収または反射しない透過する無色透明の窓板を前記上部開口部に装着する筐体装着ステップを更に備えてよい。
…(2)
11 光源装置
12 レンズ
20 鋼板
34 位置調整部
35 遮蔽板
36 角度調整部
100 溝加工装置
101、102 平面鏡
LB レーザビーム
Claims (10)
- レーザビームによって対象物の表面に溝を形成する溝加工装置であって、
前記レーザビームを出力する光源装置と、
前記光源装置から出力された前記レーザビームを反射するポリゴンミラーと、
前記ポリゴンミラーで反射された前記レーザビームの光路上に設けられ、前記レーザビームを集光する集光光学系と、
前記集光光学系と前記対象物との間で、前記集光光学系を介して集光された前記レーザビームの一部を遮る位置に設けられ、前記レーザビームの一部を遮る遮蔽板と、
を備え、
前記集光光学系を介して集光された前記レーザビームのうち、前記遮蔽板で遮られない前記レーザビームの一部は、前記レーザビームの焦点において前記対象物の表面に溝を形成し、
前記遮蔽板は、前記焦点よりも前記集光光学系側に設けられ、前記溝を形成しない前記レーザビームを遮蔽するように前記対象物の表面に対して回動する、溝加工装置。 - 前記対象物の表面に対する前記遮蔽板の角度をψとし、前記レーザビームが前記ポリゴンミラーの一枚の平面鏡に収まる最大の角度である臨界角をθc(°)としたとき、
前記遮蔽板の角度ψが、2θc<ψ≦90(°)の範囲で傾けられている、請求項1に記載の溝加工装置。 - 前記ポリゴンミラーの回転軸から前記ポリゴンミラーの平面鏡に垂線を下した位置を基準位置としたときに、前記ポリゴンミラーで隣接する二枚の平面鏡の境目と前記基準位置とのなす角度をθ0(°)とし、
前記遮蔽板が角度ψで傾いている際、前記ポリゴンミラーの回転角度がθ0(°)のときに前記ポリゴンミラーで2θ0(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点P0とし、
前記遮蔽板が前記角度ψで傾いている際、前記ポリゴンミラーの回転角度がθc(°)のときに前記ポリゴンミラーで2θc(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点Pとし、
前記点Pと前記点P0との高さの差をLp0とし、
前記集光光学系から前記点Pの高さまでの距離をL2とすると、
Lp0<L2を満たす、請求項2に記載の溝加工装置。 - 前記ポリゴンミラーにより前記レーザビームが走査される走査方向において前記遮蔽板の位置を調整する位置調整部を備える、請求項1から請求項3のいずれか1項に記載の溝加工装置。
- 前記遮蔽板を下部に配置する筐体を備え、
前記筐体は、前記集光光学系により集光された前記レーザビームの光路上に位置する上部開口部を有し、
前記上部開口部には、前記レーザビームを吸収または反射しない透過する無色透明の窓板が装着される、請求項1から請求項4のいずれか1項に記載の溝加工装置。 - レーザビームによって対象物の表面に溝を形成する溝加工方法であって、
光源装置により、前記レーザビームを出力する出力ステップと、
ポリゴンミラーにより、前記光源装置から出力された前記レーザビームを反射させる反射ステップと、
前記ポリゴンミラーで反射された前記レーザビームの光路上に設けられた集光光学系を用いて、前記レーザビームを前記対象物の表面に集光させる集光ステップと、
前記集光光学系と前記対象物との間で、前記集光光学系を介して集光された前記レーザビームの一部を遮る位置に設けられた遮蔽板を用いて、前記レーザビームの一部を遮る遮蔽ステップと、
を備え、
前記集光光学系を介して集光された前記レーザビームのうち、前記遮蔽板で遮られない前記レーザビームの一部は、前記レーザビームの焦点において前記対象物の表面に溝を形成し、
前記遮蔽ステップでは、前記焦点よりも前記集光光学系側に設けられ、前記溝を形成しない前記レーザビームを遮蔽するように前記対象物の表面に対して回動する前記遮蔽板を設ける、溝加工方法。 - 前記遮蔽ステップでは、前記対象物の表面に対する前記遮蔽板の角度をψとし、前記レーザビームが前記ポリゴンミラーの一枚の平面鏡に収まる最大の角度である臨界角をθc(°)としたとき、
前記遮蔽板の角度ψを、2θc<ψ≦90(°)の範囲で傾ける、請求項6に記載の溝加工方法。 - 前記遮蔽ステップでは、前記ポリゴンミラーの回転軸から前記ポリゴンミラーの平面鏡に垂線を下した位置を基準位置としたときに、前記ポリゴンミラーで隣接する二枚の平面鏡の境目と前記基準位置とのなす角度をθ0(°)とし、
前記遮蔽板が角度ψで傾いている際、前記ポリゴンミラーの回転角度がθ0(°)のときに前記ポリゴンミラーで2θ0(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点P0とし、
前記遮蔽板が前記角度ψで傾いている際、前記ポリゴンミラーの回転角度がθc(°)のときに前記ポリゴンミラーで2θc(°)の角度で反射した前記レーザビームが、前記遮蔽板に照射される位置を点Pとし、
前記点Pと前記点P0との高さの差をLp0とし、
前記集光光学系から前記点Pの高さまでの距離をL2とすると、
Lp0<L2を満たす、請求項7に記載の溝加工方法。 - 前記ポリゴンミラーにより前記レーザビームが走査される走査方向において前記遮蔽板の位置を調整する遮蔽板位置調整ステップを更に備える、請求項6から請求項8のいずれか1項に記載の溝加工方法。
- 前記遮蔽板を下部に配置し、前記集光光学系により集光された前記レーザビームの光路上に位置する上部開口部を有する筐体には、前記レーザビームを吸収または反射しない透過する無色透明の窓板を前記上部開口部に装着する筐体装着ステップを更に備える、請求項6から請求項9いずれか1項に記載の溝加工方法。
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EP (1) | EP3970903A4 (ja) |
JP (1) | JP7332940B2 (ja) |
KR (1) | KR102604473B1 (ja) |
CN (1) | CN113825589B (ja) |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002028798A (ja) * | 2000-07-11 | 2002-01-29 | Nippon Steel Chem Co Ltd | レーザ加工装置及びレーザ加工方法 |
JP2002292484A (ja) | 2001-03-30 | 2002-10-08 | Nippon Steel Corp | レーザによる溝加工装置 |
JP2014161899A (ja) * | 2013-02-27 | 2014-09-08 | Mitsuboshi Diamond Industrial Co Ltd | レーザ加工装置 |
JP2019091043A (ja) | 2016-06-28 | 2019-06-13 | 株式会社アスカネット | 立体像表示装置及び立体像表示方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01232303A (ja) * | 1988-03-14 | 1989-09-18 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバ心線被覆除去方法及び除去装置 |
JPH05277776A (ja) * | 1992-03-31 | 1993-10-26 | Toshiba Corp | レーザビーム用マスク装置 |
JPH07108394A (ja) * | 1993-10-08 | 1995-04-25 | Omron Corp | レーザ加工装置 |
JPH07334602A (ja) * | 1994-06-13 | 1995-12-22 | Olympus Optical Co Ltd | バーコード読み取り装置 |
JP3292079B2 (ja) * | 1997-02-24 | 2002-06-17 | 三菱電機株式会社 | レーザ加工装置 |
JP4340943B2 (ja) * | 2000-09-11 | 2009-10-07 | 澁谷工業株式会社 | レーザ照射装置 |
KR20080023597A (ko) * | 2006-09-11 | 2008-03-14 | 삼성전자주식회사 | 광주사장치 및 이를 구비한 화상형성장치 |
JP2008122614A (ja) * | 2006-11-10 | 2008-05-29 | Kyocera Mita Corp | 走査光学装置および画像形成装置 |
CN102161131A (zh) * | 2011-01-18 | 2011-08-24 | 施政辉 | 激光表面加工装置及方法 |
PL2843062T3 (pl) * | 2012-04-27 | 2020-12-14 | Nippon Steel Corporation | Blacha cienka ze stali elektrotechnicznej o ziarnach zorientowanych oraz sposób jej wytwarzania |
WO2016189344A1 (en) * | 2015-05-28 | 2016-12-01 | University Of West Bohemia | Method of laser beam writing with shifted laser surface texturing |
-
2020
- 2020-05-13 CN CN202080035314.9A patent/CN113825589B/zh active Active
- 2020-05-13 JP JP2021519458A patent/JP7332940B2/ja active Active
- 2020-05-13 KR KR1020217039937A patent/KR102604473B1/ko active IP Right Grant
- 2020-05-13 EP EP20804910.6A patent/EP3970903A4/en active Pending
- 2020-05-13 US US17/610,990 patent/US20220219261A1/en active Pending
- 2020-05-13 WO PCT/JP2020/019105 patent/WO2020230816A1/ja unknown
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002028798A (ja) * | 2000-07-11 | 2002-01-29 | Nippon Steel Chem Co Ltd | レーザ加工装置及びレーザ加工方法 |
JP2002292484A (ja) | 2001-03-30 | 2002-10-08 | Nippon Steel Corp | レーザによる溝加工装置 |
JP2014161899A (ja) * | 2013-02-27 | 2014-09-08 | Mitsuboshi Diamond Industrial Co Ltd | レーザ加工装置 |
JP2019091043A (ja) | 2016-06-28 | 2019-06-13 | 株式会社アスカネット | 立体像表示装置及び立体像表示方法 |
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JP7332940B2 (ja) | 2023-08-24 |
CN113825589A (zh) | 2021-12-21 |
CN113825589B (zh) | 2024-03-29 |
JPWO2020230816A1 (ja) | 2020-11-19 |
KR102604473B1 (ko) | 2023-11-22 |
KR20220005084A (ko) | 2022-01-12 |
EP3970903A4 (en) | 2022-07-20 |
US20220219261A1 (en) | 2022-07-14 |
BR112021022645A2 (pt) | 2021-12-28 |
EP3970903A1 (en) | 2022-03-23 |
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