COMPOSITE MOLDED ARTICLE AND MEMBER USED IN SAME

The purpose of the present invention is to provide a composite molded article with which it is possible to obtain high bonding strength by suppressing the occurrence of voids even when a bonding portion has a thick portion. The purpose of the present invention is achieved by a composite molded article in which a member having a plurality of grooves in the surface and a resin molded article are joined by insert molding, the member and the resin molded article being joined by means of a joining region having the grooves, the joining region having at least a region A and a region B, the depth of the groove in the region A and the depth of the groove in the region B are different, the wall thickness XA of the resin molded article joined in the region A is larger than 2 mm, the depth YB of the groove in the region B is larger than 0.05 mm, when the depth of the groove in the region A is set to be YAmm, the product of XA and YA in the region A is smaller than 0.1, and when the wall thickness of the resin molded art