RESIN MOLDED PRODUCT OBTAINED BY INTEGRATING METAL MEMBER AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To secure the air-tightness and liquid-tightness of a joint between a metal member and a resin member without increasing the number of work processes by laser beam irradiation by designing a fine uneven shape formed on a surface of the metal member by laser beam irradiation.SOLUTION: There is provided a resin molded product in which a metal member and a resin member are joined and integrated together in a same plane by the molding of the resin member. An aggregation area of grooves having a parallel fine width dimension by laser beam irradiation is formed on a joint surface between the metal member and the resin member. Each of the grooves forming the aggregation area of grooves is formed by repeating scanning by a laser beam spot a plurality of times on the same line to one direction by a feed pitch smaller than a diameter of the laser beam spot. Further, the parallel adjacent grooves are separated by a protrusion having a fine width dimension larger by 30% than the diameter of the laser beam spot.