LASER JOINING METHOD, LASER-JOINED COMPONENT, AND LASER JOINING APPARATUS
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United States of America Patent
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app pub date -
Mar 27, 2015
filing date -
Mar 31, 2014
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Abstract
A laser joining method includes irradiating a first laser light serving as one of a laser light including a pulse width greater than an ultrashort-pulse laser light and a continuous wave laser light to a region at which a first object and a second object are in contact with or close to each other, and irradiating a second laser light serving as the ultrashort-pulse laser light during the irradiation of the first laser light to a section to which the first laser light is irradiated. An intensity of the second laser light falls within a range so that the first object and the second object are inhibited from being joined to each other in a case where the second laser light is independently irradiated to the region at which the first object and the second object are in contact with or close to each other.
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