초록 ▼

A profile member of hybrid composite materials including alternating layers of metal and fiber-reinforced composite is fabricated by three successive steps. In a first step, wet composite prepreg layers impregnated with a binder are alternately stacked with metal layers, so that the uncured binder w

A profile member of hybrid composite materials including alternating layers of metal and fiber-reinforced composite is fabricated by three successive steps. In a first step, wet composite prepreg layers impregnated with a binder are alternately stacked with metal layers, so that the uncured binder wets the surfaces of the metal layers. Next, the initial uncured layer structure is plastically deformed using successive pressure or bending deformation steps until a prescribed cross-sectional contour of the layer structure is achieved. Finally, the formed layer structure is supported and fixed in an autoclave, in which the binder is cured under an applied mechanical pressure and elevated temperature, to form the finished profile member.

대표청구항 ▼

1. A method of making a profile member of a hybrid composite material including metal layers and fiber-reinforced composite layers, comprising the following steps:a) alternately stacking metal layers and fiber-reinforced composite prepreg layers, which are impregnated with an uncured thermally curab

1. A method of making a profile member of a hybrid composite material including metal layers and fiber-reinforced composite layers, comprising the following steps:a) alternately stacking metal layers and fiber-reinforced composite prepreg layers, which are impregnated with an uncured thermally curable binder, one on another so that said uncured binder wets respective surfaces of said metal layers, so as to prepare thereof an uncured initial layer structure having an initial cross-sectional contour; b) plastically deforming said uncured initial layer structure to prepare thereof a deformed layer structure having a prescribed cross-sectional contour different from said initial cross-sectional contour; and c) curing said binder of said deformed layer structure under an elevated temperature and an elevated pressure in an autoclave, so as to cure and harden said deformed layer structure and prepare thereof a finished profile member.