PURPOSE: To make it possible to continuously produce an article without employing valuable molds by a method wherein molding material layers, which is formed by winding fibers containing metal fibers onto a mandrel in layers and, after the mandrel is removed, thermoplastic resin is softened by high frequency induction heating so as to form the molding layer into a predetermined shape by bending.

CONSTITUTION: Molding material layers consisting of thermoplastic resin-coated lightweight reinforcing fibers and metal fibers are formed by winding the respective fibers round a mandrel in layers by filament winding method. A reinforcing fibers A wound round the mandrel 4 are heated with a first heating ring 6. Next, metal fiber B fed from a bobbin 2b is wound round over the first layer and heated with a second heating ring 7. Further, the reinforcing fibers A fed from bobbins 3b are wound round and heated with a third heating ring 8. The resultant molding material layers are cut into proper lengths with cutting tools 9 together with the mandrel 4. By pulling the mandrel out of the molding layers for removal, only the tubular molding material layers are left behind. Next, the required portion of the molding material layer pipe is heated by high frequency induction so as to be bent in order to be formed into a predetermined shape.