| 摘要 |
<p>PURPOSE:To obtain a composite member having characteristics such as light weight and high density, by compacting a fiber compact made of two layers having different fiber densities, arranging the compact so that high density layer is positioned at surface side of product and pouring a cast-in material. CONSTITUTION:Linear fibers A and curled fibers B are piled in layered state, compacted and sintered to prepare the fiber compact 3 made of layers having different fiber densities. The sintered compact 3 is arranged so that a layer 3a of the fibers A is brought to contact with the surface of a cavity 4a in a mold 4, and a layer 3b of the fibers B is positioned inside the cavity 4a. The cast-in material 5 such as molten Al alloy is poured into the cavity 4a and these are pressed. Poured molten metal is impregnated into the compact 3 to fill the material 5 into pores therein, and the composite member 6 having a prescribed shape is obtd. In the member 6, the surface part where the layer 3a is positioned is reinforced. The compact 3 is cast-in with high joining strength.</p> |
