| 摘要 |
This invention relates to a manufacturing method and structure of a carbon fiber rim. A metal strip is formed by heating a metal substrate to a moldable temperature and then extruded molding. The metal strip comprises two side walls (1), a connecting wall (2) connecting opposite teuminal surfaces of the side walls (1), an inner rim wall (3) connecting the radial inner edges of the side walls (1) to form a space surrounded by the side walls (1), the connecting wall (2), and the inner rim wall (3). Next, two terminals of the strip are connected to form a circle as a rim frame's embryo. The two side walls (1), or the two side walls (1) and the inner rim wall (3) of the rim frame's embryo are milled to form plural through holes (4) and become a rim frame (10). Afterwards, the surface of the rim frame (10) is roughened and covered with a trimmed carbon fiber cloth (20) having a predetermined shape. After heatsetting and surface treating, a carbon fiber rim having a light weight and a strong structure is obtained. |
