Laser welding member, and molded article

A method of producing a laser-welded molded article, the method comprising:

• laser welding a first laser welding member obtained by injection molding a thermoplastic polyester resin material, with a second member comprising a laser-absorptive resin material by irradiation with laser light from a side of the first laser welding member,
• wherein
• the thermoplastic polyester resin material of the first laser welding member comprises a polybutylene terephthalate resin, polystyrene and/or butadiene rubber-containing polystyrene, and a polycarbonate resin, and a content of the polybutylene terephthalate resin is from 30 to 90 mass %, a content of the polystyrene and/or butadiene rubber-containing polystyrene is from 1 to 50 mass %, and a content of the polycarbonate resin is from 1 to 50 mass %, based on 100 mass % for a total of the polybutylene terephthalate resin, the polystyrene and/or butadiene rubber-containing polystyrene, and the polycarbonate resin,
• the second member comprises a thermoplastic polyester resin composition comprising a carbon black or a laser light-absorbing dye,
• a region to be laser welded in the first member is at a location separated by a distance of at least 15 mm from a gate of an injection molding mold and has at least 50% of a light transmittance of laser light with a wavelength of 940 nm, and
• a crystallization temperature (Tc) of the region to be laser welded in the first member is not more than 188° C.