| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laser joining method of resin members which can rapidly implement laser joining by preventing the production of product failure such as the decomposition or carbonization of the resin member even when process variation such as laser output variation or condensing light density variation is produced when the laser joining of the resin members is performed through a light absorber, and the laser joined body of the resin members. <P>SOLUTION: In the laser joining method of the resin members 10a and 10b by bringing at least two resin members 10a and 10b into contact with each other and irradiating the light absorber 20 arranged in the vicinity of the contact surfaces of both resin members 10a and 10b with a laser beam 50 to weld and join the resin members 10a and 10b, at least one of the resin members 10a and 10b includes thermoplastic resin having a glass transition point or melting point of below 300°C and the light absorber 20 has weight reduction quantity thereof measured when the light absorber 20 is heated to 350°C using a differential thermobalance is 40% or above. <P>COPYRIGHT: (C)2011,JPO&INPIT |
