Back to results
US 12,741,337 B2Granted
Welding method and welding apparatus
AssigneeFurukawa Electric Co., Ltd.
InventorsTomomichi Yasuoka, Takashi Kayahara, Toshiaki Sakai, Ryosuke Nishii, Takashi Shigematsu
Life of this patent
Estimating the term…
Abstract
A welding method includes: arranging a workpiece containing copper in a region to be irradiated with laser light; and irradiating the workpiece with the laser light to melt and weld an irradiated portion of the workpiece. Further, the laser light is formed of a main beam and a plurality of sub beams, and a ratio of power of the main beam to total power of the plurality of sub beams is 72:1 to 3:7.
Claims9
A welding method comprising:
- arranging a workpiece containing copper in a region to be irradiated with laser light;
- and
- moving the laser light and the workpiece relative to each other while irradiating the workpiece with the laser light and sweeping the laser light over the workpiece at a sweep rate of 1 m/min to 20 m/min to melt and weld an irradiated portion of the workpiece, wherein
- the laser light is formed of a main beam and a plurality of sub beams, and
- a ratio of power of the main beam to total power of the plurality of sub beams is 8:2 to 5:5.
2 more elements
A welding method comprising:
- arranging a workpiece containing copper in a region to be irradiated with laser light;
- and
- irradiating the workpiece with the laser light to melt and weld an irradiated portion of the workpiece, wherein
- the laser light is formed of a main beam and a plurality of sub beams,
- a ratio of power of the main beam to total power of the plurality of sub beams is 72:1 to 3:7,
- the plurality of sub beams are located so as to surround an outer periphery of the main beam,
- the plurality of sub beams are located so as to form an approximate ring shape centered at the main beam, and
- a distance between a center of a sub beam that is most adjacent to the main beam and a center of the main beam is 75 μm to 400 μm.
5 more elements
Dependencies are inferred from the claim text.