LASER APPARATUS AND MANUFACTURING METHOD OF A BATTERY
First Claim
1. A laser apparatus comprising:
- a first laser oscillator that oscillates a pulsed laser light;
a pulse power source that generates a current signal and a mask signal for masking a fluctuation component included in the current signal and which supplies the current signal whose fluctuation component is masked by the mask signal to the first laser oscillator;
a second laser oscillator that oscillates a continuous wave laser light;
a first optical system that generates a superimposed laser light by superimposing the pulsed laser light with the continuous wave laser light and which focuses the superimposed laser light;
a second optical system that sets a shape of a focus spot of the pulsed laser light to a circular shape; and
a third optical system that sets a shape of a focus spot of the continuous wave laser light to a rhombic streamlined shape, whereinthe first optical system forms a focus spot for the superimposed laser light in which the circular-shaped focus spot for the pulsed laser light is included in the rhombic-streamlined-shaped focus spot for the continuous wave laser light.
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Accused Products
Abstract
A laser apparatus is provided which is capable of achieving deep penetration into an aluminum-like metal material without causing welding defects such as spatters or cracks and performing high-speed pulse seam welding. The laser apparatus includes a pulse power source that generates a current signal and a mask signal for masking a fluctuation component included in the current signal, and which supplies a current signal in which a fluctuation component has been masked by the mask signal to a YAG pulsed laser oscillator. In addition, the laser apparatus sets the spot shape of a CW laser light oscillated by a CW laser oscillator to a rhombic streamlined shape, and causes a focus spot of the CW laser light to include a circular focus spot of a pulsed laser light.
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Citations
4 Claims
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1. A laser apparatus comprising:
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a first laser oscillator that oscillates a pulsed laser light; a pulse power source that generates a current signal and a mask signal for masking a fluctuation component included in the current signal and which supplies the current signal whose fluctuation component is masked by the mask signal to the first laser oscillator; a second laser oscillator that oscillates a continuous wave laser light; a first optical system that generates a superimposed laser light by superimposing the pulsed laser light with the continuous wave laser light and which focuses the superimposed laser light; a second optical system that sets a shape of a focus spot of the pulsed laser light to a circular shape; and a third optical system that sets a shape of a focus spot of the continuous wave laser light to a rhombic streamlined shape, wherein the first optical system forms a focus spot for the superimposed laser light in which the circular-shaped focus spot for the pulsed laser light is included in the rhombic-streamlined-shaped focus spot for the continuous wave laser light. - View Dependent Claims (2, 3, 4)
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Specification