WO2023282222A1 - レーザ溶接方法 - Google Patents
レーザ溶接方法 Download PDFInfo
- Publication number
- WO2023282222A1 WO2023282222A1 PCT/JP2022/026557 JP2022026557W WO2023282222A1 WO 2023282222 A1 WO2023282222 A1 WO 2023282222A1 JP 2022026557 W JP2022026557 W JP 2022026557W WO 2023282222 A1 WO2023282222 A1 WO 2023282222A1
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- WO
- WIPO (PCT)
- Prior art keywords
- laser
- wires
- rectangular
- flat
- wire
- Prior art date
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- 238000003466 welding Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 239000004020 conductor Substances 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000001678 irradiating effect Effects 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Images
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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
Definitions
- the present invention mainly relates to a method of welding rectangular wires using a laser.
- Patent Literature 1 discloses a method of welding flat wires.
- Patent Document 1 after the end side surfaces of two flat wire conductors are butted together, the end face of the first flat wire is irradiated with a laser. At that time, the laser is scanned in a loop to form a molten pool. After that, the loop diameter of the locus of the laser is increased so that the molten pool reaches the abutting surfaces of the first flat wire and the second flat wire.
- the molten pool formed in the first rectangular wire is larger than the molten pool formed in the second rectangular wire. In other words, the two rectangular wires are not evenly heated.
- the present invention has been made in view of the above circumstances, and its main purpose is to provide a method for welding two rectangular wires by heating them evenly using a laser. .
- the laser welding method includes a preparation process and a welding process.
- the preparation step the side surfaces of the longitudinal ends of the two conductors of flat wire are brought together.
- a region including the boundary between the end faces of the conductors of the two flat wires is irradiated with a pulse laser to weld the flat wires.
- the pulsed laser is applied to the end surface of the rectangular wire after passing through the transmission optical system.
- the transmission optical system is rotatable, and the irradiation position of the pulse laser on the end surface changes in the first direction according to the rotational phase of the transmission optical system.
- the flat wires are welded by irradiating the pulse laser to a region including the boundary between the end faces so that the first direction is parallel to the long sides of the end faces of the flat wires. .
- welding is performed by scanning the pulse laser in a direction parallel to the long side of the end face of the rectangular wire, so that the two rectangular wires can be evenly heated using the laser.
- FIG. 2 is a plan view of the optical scanning device;
- FIG. FIG. 2 is a side view of the optical scanning device;
- FIG. 10 is a diagram showing that the path of a laser beam is changed by passing through a translucent member;
- FIG. 2 is a plan view showing how an optical scanning device scans a laser in a first direction;
- FIG. 4 is a side view showing how the optical scanning device scans the laser in the second direction;
- FIG. 5 is a diagram showing that the range of the melted portion of the flat wire differs between the conventional technology and the present embodiment;
- FIG. 5 is a diagram showing that the range of the melted portion of the flat wire differs between the conventional technology and the present embodiment;
- FIG. 11 is a plan view showing how the optical scanning device according to the second embodiment scans the laser in the first direction;
- FIG. 11 is a side view showing how the optical scanning device according to the second embodiment scans the laser in the second direction;
- FIG. 4 is a plan view showing how a flat wire is welded while moving the processing head in a direction parallel to the long side direction of the flat wire.
- FIG. 4 is a plan view showing how a flat wire is welded while moving a processing head in a direction parallel to the short side direction of the flat wire.
- FIG. 1 is a perspective view of a laser processing apparatus 1.
- FIG. The laser processing apparatus 1 is used for welding flat wires 90 .
- a rectangular wire 90 is an electric wire in which an insulating coating 92 is formed around a conductor 91 having a rectangular cross section.
- the rectangular wire 90 is used for a segment coil for a motor or the like, it is necessary to weld the ends of the rectangular wire 90 to each other.
- the insulating coating 92 at the ends of the two flat wires 90 is peeled off, and the side surfaces of the ends of the conductors 91 of the two flat wires 90 are brought together.
- the conductors 91 are welded by irradiating the end faces of the conductors 91 of the two rectangular wires 90 (particularly, the region including the boundary between the two conductors 91) with a laser.
- the laser processing device 1 includes a laser generator 11, a support member 12, and a processing head 13.
- the laser generator 11 generates a pulse laser with a short time interval by pulse oscillation.
- the time interval of the pulsed laser is not particularly limited, but the laser generator 11 generates the pulsed laser at short time intervals such as nanosecond order, picosecond order, or femtosecond order.
- the "pulse laser” generated by the laser generator 11 is simply referred to as "laser”.
- the support member 12 supports the processing head 13.
- a plurality of optical components (mirrors, prisms, etc.) for guiding the laser generated by the laser generator 11 to the processing head 13 are arranged inside the support member 12 .
- an optical fiber may be used to guide the laser from the laser generator 11 to the processing head 13 .
- the processing head 13 irradiates the rectangular wire 90 with laser generated by the laser generator 11 and transmitted through the support member 12 .
- the processing head 13 is provided with an optical scanning device 14 .
- the processing head 13 of this embodiment is of a fixed type, and is configured to perform welding with respect to the rectangular wire 90 without moving. Instead of this configuration, the processing head 13 may be configured to perform welding while moving with respect to the rectangular wire 90 (details will be described later). Alternatively, welding may be performed by moving the rectangular wire 90 while the processing head 13 is fixed.
- the optical scanning device 14 includes a condensing member 21, a reflecting member 22, an electric motor 23, a rotary table 24, and a transmission optical system 30.
- the condensing member 21 is a condensing lens that condenses the laser.
- the condensing member 21 is not limited to a condensing lens, and may be, for example, a parabolic mirror.
- the reflecting member 22 is a mirror or prism that reflects the laser.
- the reflecting member 22 changes the traveling direction of the laser by reflecting the laser condensed by the condensing member 21 .
- the laser reflected by the reflecting member 22 is directed toward the transmission optical system 30 .
- the electric motor 23 generates rotational driving force.
- a rotational driving force generated by the electric motor 23 is transmitted to the rotary table 24 .
- the rotary table 24 rotates around the rotation axis 81 .
- the condensing member 21 and the reflecting member 22 are rotatable relative to the rotary table 24, and the condensing member 21 and the reflecting member 22 do not rotate even when the rotary table 24 rotates.
- a transmissive optical system 30 is provided on the rotary table 24 . As the rotary table 24 rotates, the transmissive optical system 30 also rotates integrally with the rotary table 24 .
- the transmissive optical system 30 is composed of a plurality of translucent members that transmit laser light.
- the transmission optical system 30 includes a first light-transmitting member 31, a second light-transmitting member 32, a third light-transmitting member 33, a fourth light-transmitting member 34, and a fifth light-transmitting member 35. , and a sixth translucent member 36 .
- the first to sixth light-transmitting members 31 to 36 of the present embodiment are plate-shaped members having a constant thickness, and are arranged side by side so as to form a polygon (a regular hexagon in the present embodiment). .
- the laser processing apparatus 1 uses this principle to scan the laser.
- the translucent member has an incident surface on which the laser is incident and an output surface from which the laser is emitted.
- the incident surface and the exit surface of the translucent member are parallel. Further, when the incident surface and the reflecting surface of the translucent member are perpendicular to the laser, the path of the laser does not change, and when the incident surface and the reflecting surface of the translucent member are not perpendicular to the laser The laser path changes.
- the laser When the laser is incident on the translucent member, the laser is refracted. Specifically, the refraction angle ⁇ 2 has a value different from the incident angle ⁇ 1.
- the relationship between the incident angle ⁇ 1 and the refraction angle ⁇ 2 depends on the ratio of the refractive index of the atmosphere and the refractive index of the translucent member.
- the laser is refracted when the laser is emitted from the translucent member to the outside. Since the incident surface and the emitting surface of the light-transmitting member are parallel, the direction of the laser incident on the light-transmitting member and the direction of the laser emitted from the light-transmitting member are parallel. However, the position of the laser incident on the light-transmitting member and the position of the laser emitted from the light-transmitting member differ by a distance D.
- the distance D depends on the angle of the light-transmitting member with respect to the laser, the thickness of the light-transmitting member, and the ratio of the refractive index of the air to the refractive index of the light-transmitting member. In this embodiment, since the ratio of the thickness of the transparent member to the refractive index is constant, the distance D changes according to the angle of the transparent member with respect to the laser.
- the first to sixth light-transmitting members 31 to 36 of this embodiment are fixed to the rotary table 24 . Therefore, by rotating the rotary table 24, the first to sixth light transmitting members 31 to 36 can be rotated.
- the angle of the first light-transmitting member 31 with respect to the laser is changes.
- the distance D changes according to the rotational phase of the first translucent member 31 (transmissive optical system 30). That is, the laser is scanned by rotating the transmission optical system 30 while irradiating the laser.
- the direction of the laser at this time is hereinafter referred to as the "first direction".
- the optical scanning device 14 of the present embodiment also scans the laser in a direction (second direction) orthogonal to the first direction.
- the first light-transmitting member 31 and the fourth light-transmitting member 34 stand upright with respect to the rotary table 24, while the second light-transmitting member 32 and the fifth light-transmitting member 35 are located inside ( 81 side), and the third light-transmitting member 33 and the sixth light-transmitting member 36 are tilted outward.
- the angle of the light-transmitting member with respect to the laser is changed by switching the light-transmitting member through which the laser is transmitted.
- the distance D in the second direction is changed by switching the translucent member through which the laser is transmitted.
- the optical scanning device 14 scans the laser also in the second direction.
- the irradiation position of the laser changes in the first direction (scanning is performed in the first direction). Then, when the rotation of the rotary table 24 progresses and the laser beam passes through the next translucent member, the laser irradiation position moves in the second direction (scanning is performed in the second direction).
- FIG. 7 schematically shows the order in which the conductors 91 of the rectangular wire 90 are irradiated with the laser.
- the laser marks are adjacent to each other in order to make it easier to see the order of laser irradiation, but the laser marks actually overlap each other.
- the number of times of laser irradiation in the first direction is 10, but in reality, there is a high possibility that the number of times of irradiation will be more than that.
- three rows of lasers are emitted in the second direction, but in reality, there is a high possibility that four or more rows of lasers are emitted.
- the first direction is parallel to the long side of the cross section (rectangular shape) of the conductor 91 of the rectangular wire 90 .
- the first direction is parallel to the line (boundary line) drawn by the boundary between the conductors 91 of the two rectangular wires 90 .
- a region including the boundary of the end faces of the conductors 91 of the two flat wires 90 is irradiated with a laser and scanned in the first direction, thereby welding the conductors 91 of the two flat wires 90 together. Since the beam diameter of the laser in this embodiment is small, the laser is scanned not only in the first direction but also in the second direction.
- a preparatory step is performed in which the side surfaces of the longitudinal end portions of the conductors 91 of the two rectangular wires 90 are brought together.
- the end face of the conductor 91 of one of the rectangular wires 90 is irradiated with a laser, and the laser is scanned in a loop to form a molten pool.
- the diameter of the trajectory of the laser is increased so that the molten pool reaches a region including the boundary between the conductors 91 of the two rectangular wires 90 .
- the conductor 91 of one flat wire 90 is heated intensively, the conductors 91 of the two flat wires 90 are not evenly heated. Specifically, as shown in the lower diagram of FIG. 8, the melted portion of the conductor 91 of the flat wire 90 that was irradiated with the laser first is smaller than the melted portion of the conductor 91 of the other flat wire 90. .
- a preparatory step is performed in which the side surfaces of the longitudinal ends of the conductors 91 of the two flat wires 90 are brought together.
- a welding process is performed in which a region including the boundary between the end faces of the conductors 91 of the two flat wires 90 is irradiated with a laser to weld the flat wires 90 together.
- the laser is scanned along the long side of the conductor 91, as shown in FIGS. Therefore, as shown in the lower diagram of FIG. 8, the conductors 91 of the two rectangular wires 90 can be evenly melted.
- the laser irradiation program tends to be complicated.
- the processing head 13 if the shape and orientation of the transmission optical system 30 are determined so that the laser is irradiated in a range suitable for welding between the flat wires 90, then the processing head 13 The two flat wires 90 can be properly welded only by arranging the flat wire 90 at an appropriate position.
- FIG. 9 the optical scanning device 14 of the second embodiment will be described with reference to FIGS. 9 and 10.
- the optical scanning device 14 of the second embodiment includes a condensing member 21, a rotary table 24, and a translucent member 37.
- the translucent member 37 has a hexagonal shape.
- the translucent member 37 is fixed to the rotary table 24 .
- the light-transmitting member 37 is fixed to the turntable 24 so that the center of the light-transmitting member 37 and the center of the turntable 24 (that is, the rotation axis 81) are aligned.
- the translucent member 37 is rotated.
- the condensing member 21 does not rotate.
- the incident surface of the translucent member 37 on which the laser (bold line) is incident and the emission surface from which the laser is emitted from the translucent member 37 are parallel. Also, the incident angle of the laser changes according to the rotational phase of the translucent member 37 . Therefore, according to the principle explained with reference to FIG. Thus, the laser is scanned in the first direction also in the second embodiment.
- the optical scanning device 14 of the second embodiment can also scan the laser in the second direction.
- a configuration for scanning the laser in the second direction will be described with reference to FIG.
- FIG. 10 shows three sets of perspective views and side views showing how the laser is transmitted through the translucent member 37 .
- the translucent member 37 has a first side surface 37a, a second side surface 37b, a third side surface 37c, a fourth side surface 37d, a fifth side surface 37e, and a sixth side surface 37f.
- the first side 37a and the fourth side 37d are positioned to face each other
- the second side 37b and the fifth side 37e are positioned to face each other
- the third side 37c and the sixth side 37f are positioned to face each other. are doing.
- the top perspective view and side view of FIG. 10 show how the laser is incident on the first side surface 37a and emitted from the fourth side surface 37d.
- the first side surface 37a and the fourth side surface 37d are upright with respect to the rotary table 24.
- the position of the laser in the second direction does not change.
- the position of the laser in the second direction does not change.
- the central perspective view and side view of FIG. 10 show how the laser is incident on the second side surface 37b and emitted from the fifth side surface 37e.
- the second side surface 37b and the fifth side surface 37e are inclined with respect to the normal to the rotary table 24 toward the downstream side of the laser.
- the second side 37b and the fifth side 37e are not orthogonal to the laser. Therefore, when the laser is incident on the second side surface 37b and emitted from the fifth side surface 37e, the position of the laser in the second direction changes (more specifically, it changes toward the turntable 24). Similarly, when the laser is incident on the fifth side surface 37e and emitted from the second side surface 37b, the position of the laser in the second direction changes.
- the bottom perspective view and side view of FIG. 10 show how the laser is incident on the third side surface 37c and emitted from the sixth side surface 37f.
- the direction of inclination of the third side surface 37c and the sixth side surface 37f is opposite to that of the second side surface 37b and the fifth side surface 37e. Therefore, when the laser is incident on the third side surface 37c or the sixth side surface 37f, the position of the laser in the second direction changes (more specifically, it changes to the side away from the rotary table 24).
- the irradiation position of the laser changes in the first direction (scanning is performed in the first direction). Then, when the laser is transmitted through the next surface of the translucent member 37, the irradiation position of the laser moves in the second direction (scanning is performed in the second direction). Therefore, in the second embodiment as well, laser scanning can be performed in the same manner as in the first embodiment.
- FIG. 11 a method of welding the flat wire 90 while moving the processing head 13 will be described with reference to FIGS. 11 and 12.
- FIG. 11 shows a situation in which the rectangular wire 90 is welded while moving the processing head 13 in a direction parallel to the long side of the rectangular wire 90 .
- the length over which the optical scanning device 14 scans the laser in the first direction can be made smaller than the length of the long side of the rectangular wire 90 .
- FIG. 12 shows a situation in which the rectangular wire 90 is welded while moving the processing head 13 in a direction parallel to the short side of the rectangular wire 90 .
- the laser processing apparatus 1 moves the processing head 13 in the first direction with respect to the flat wire 90 .
- the laser processing apparatus 1 welds the rectangular wire 90 while moving the processing head 13 again in a direction parallel to the short side of the rectangular wire 90 .
- the flat wires 90 can be appropriately welded to each other even if there is a gap at the boundary between the flat wires 90 to be welded.
- the laser welding method of this embodiment includes a preparation process and a welding process.
- the preparation step the side surfaces of the longitudinal ends of the conductors 91 of the two rectangular wires 90 are brought together.
- a region including the boundary between the end surfaces of the conductors 91 of the two flat wires 90 is irradiated with a laser to weld the flat wires 90 together.
- the end face of the rectangular wire 90 is irradiated with the laser after passing through the transmission optical system 30 .
- the transmission optical system 30 is rotatable, and according to the rotational phase of the transmission optical system 30, the irradiation position of the laser on the end face changes in the first direction.
- the first direction is parallel to the long sides of the end faces of the rectangular wire 90, and the region including the boundary between the end faces of the conductors 91 of the rectangular wire 90 is irradiated with a pulsed laser beam so that the rectangular wires 90 are welded together. Weld.
- welding is performed by scanning the laser in a direction parallel to the long side of the end surface of the rectangular wire 90, so that the two rectangular wires 90 can be evenly heated using the laser.
- the laser irradiation position of the flat wire 90 on the end face of the conductor 91 also changes in the second direction perpendicular to the first direction on the end face.
- the laser can be irradiated not only on the boundary between the conductors 91 of the two rectangular wires 90 but also on the periphery, so that the rectangular wires 90 can be welded together more appropriately.
- laser is emitted from the processing head 13 toward the conductor 91 of the rectangular wire 90 .
- the welding of the rectangular wires 90 is completed while the relative positions of the processing head 13 and the rectangular wire 90 are fixed.
- laser is emitted from the processing head 13 toward the conductor 91 of the rectangular wire 90 .
- the processing head 13 is moved relative to the flat wire 90 in a direction parallel to the long side of the flat wire 90 or in a direction parallel to the short side of the flat wire 90 while irradiating the pulse laser. Weld flat wires together.
- rectangular wires can be welded together even if the laser scanning range is smaller than that of rectangular wires.
- the structure for scanning the laser in the first direction is an example, and an optical scanning device other than the structure described above may be used.
- the optical scanning device 14 scans the laser in the first direction and the second direction.
- the optical scanning device 14 may be configured to scan the laser only in the first direction.
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims (4)
- 2つの平角線の導体の長手方向の端部の側面同士を合わせる準備工程と、
2つの前記平角線の導体の端面同士の境界を含む領域にパルスレーザを照射して前記平角線同士を溶接する溶接工程と、
を含み、
前記パルスレーザは、透過光学系を透過した後に前記平角線の前記端面に照射され、
前記透過光学系は回転可能であり、当該透過光学系の回転位相に応じて、前記パルスレーザの前記端面への照射位置が第1方向に変化し、
前記溶接工程では、前記第1方向が前記平角線の前記端面の長辺と平行になるようにして、前記パルスレーザを前記端面同士の境界を含む領域に照射して前記平角線同士を溶接することを特徴とするレーザ溶接方法。 - 請求項1に記載のレーザ溶接方法であって、
前記透過光学系の回転位相に応じて、前記パルスレーザの前記端面への照射位置が、更に、前記端面上において前記第1方向と直交する第2方向にも変化することを特徴とするレーザ溶接方法。 - 請求項1又は2に記載のレーザ溶接方法であって、
前記パルスレーザは加工ヘッドから前記平角線の導体に向けて発射され、
前記溶接工程では、前記加工ヘッドと前記平角線の相対位置を固定した状態で、前記平角線同士の溶接が完了することを特徴とするレーザ溶接方法。 - 請求項1又は2に記載のレーザ溶接方法であって、
前記パルスレーザは加工ヘッドから前記平角線の導体に向けて発射され、
前記溶接工程では、前記平角線に対して前記加工ヘッドを、前記平角線の長辺と平行な方向又は前記平角線の短辺と平行な方向に相対移動させながらパルスレーザを照射することにより、前記平角線同士を溶接することを特徴とするレーザ溶接方法。
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CN202280048221.9A CN117615875A (zh) | 2021-07-07 | 2022-07-04 | 激光焊接方法 |
KR1020237045108A KR20240013240A (ko) | 2021-07-07 | 2022-07-04 | 레이저 용접 방법 |
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JP2021112486A JP2023009330A (ja) | 2021-07-07 | 2021-07-07 | レーザ溶接方法 |
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KR (1) | KR20240013240A (ja) |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004343091A (ja) * | 2003-04-21 | 2004-12-02 | Semiconductor Energy Lab Co Ltd | ビーム照射装置、ビーム照射方法、及び薄膜トランジスタの作製方法 |
JP2006224184A (ja) * | 2005-02-21 | 2006-08-31 | Toyota Motor Corp | 突き合わせレーザ溶接方法及び突き合わせレーザ溶接装置 |
JP2007024928A (ja) * | 2005-07-12 | 2007-02-01 | Nidec Sankyo Corp | 光ビーム出射装置および画像形成装置 |
JP2013109948A (ja) * | 2011-11-21 | 2013-06-06 | Toyota Motor Corp | 角線の接合構造及び接合方法 |
JP6593280B2 (ja) * | 2016-08-25 | 2019-10-23 | トヨタ自動車株式会社 | 平角線のレーザ溶接方法 |
-
2021
- 2021-07-07 JP JP2021112486A patent/JP2023009330A/ja active Pending
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2022
- 2022-07-04 KR KR1020237045108A patent/KR20240013240A/ko unknown
- 2022-07-04 WO PCT/JP2022/026557 patent/WO2023282222A1/ja active Application Filing
- 2022-07-04 CN CN202280048221.9A patent/CN117615875A/zh active Pending
- 2022-07-06 TW TW111125236A patent/TW202308776A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004343091A (ja) * | 2003-04-21 | 2004-12-02 | Semiconductor Energy Lab Co Ltd | ビーム照射装置、ビーム照射方法、及び薄膜トランジスタの作製方法 |
JP2006224184A (ja) * | 2005-02-21 | 2006-08-31 | Toyota Motor Corp | 突き合わせレーザ溶接方法及び突き合わせレーザ溶接装置 |
JP2007024928A (ja) * | 2005-07-12 | 2007-02-01 | Nidec Sankyo Corp | 光ビーム出射装置および画像形成装置 |
JP2013109948A (ja) * | 2011-11-21 | 2013-06-06 | Toyota Motor Corp | 角線の接合構造及び接合方法 |
JP6593280B2 (ja) * | 2016-08-25 | 2019-10-23 | トヨタ自動車株式会社 | 平角線のレーザ溶接方法 |
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CN117615875A (zh) | 2024-02-27 |
JP2023009330A (ja) | 2023-01-20 |
KR20240013240A (ko) | 2024-01-30 |
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