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Laser welding method

  • US 10,442,035 B2
  • Filed: 06/14/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 12/19/2013
  • Status: Active Grant
First Claim
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1. A laser welding method using a laser welding jig having a plurality of pressing parts, comprising:

  • a step of placing a second member on a first member;

    a step of pressing the second member with the plurality of pressing parts in a direction toward the first member to thereby form a gap between the first member and the second member at most 300 μ

    m, the plurality of pressing parts being a pair of claws with an interval therebetween;

    a first welding step of laser-welding the first member and the second member by irradiating on a surface of the second member through the interval between the pair of claws with laser light while conducting the step of pressing; and

    a second welding step of laser-welding the first member and the second member by irradiating on the surface of the second member with the laser light while the pair of claws does not press the second member toward the first member.

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