Abstract: A method and apparatus for bonding two articles and in particular a metal trim strip to a thermoplastic article such as is used for automotive decorative window trim. The thermoplastic article includes a raised ridge portion which serves to provide means for accurately aligning the metal trim strip on the thermoplastic article. A plurality of holes are formed through the ridge portion at spaced locations along its length. The metal trim strip is preferably "C-shaped" in cross-section so as to define a channel having a restricted opening for receiving the raised ridge portion of the thermoplastic article. A controlled flow of hot air is directed into the holes of the thermoplastic article to plasticize a controlled portion of the thermoplastic material surrounding the holes. A stake is then projected into the plasticized material to displace the plasticized material into the channel portions of the metal strip.