| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laser welding method for obtaining a resin member excellent in leak resistance. <P>SOLUTION: In the laser welding method for heating and melting the contact interface of a transmittable resin material, which comprises a transmittable resin having transmitting properties with respect to a laser beam being a heating source, and a non-transmittable resin material which comprises a non-transmittable resin having no transmitting properties with respect to the laser beam, by the irradiation with the laser beam from the transmittable resin material to weld the resin materials, at least one of the contact surface parts for forming the contact interface of the transmittable resin material and the non-transmittable resin material is heated and softened, and the transmittable resin material and the non-transmittable resin material are irradiated with the laser beam in a pressure contact state. In the laser welding method for the resin member, the resin member suppressed in the occurrence of welding failure and excellent in the leak resistance of the welded part can be manufactured by laser welding. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
