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    • 75. 发明授权
    • Production of short metal fibers
    • 生产短金属纤维
    • US4640156A
    • 1987-02-03
    • US660559
    • 1984-10-15
    • Takeo NakagawaKiyoshi Suzuki
    • Takeo NakagawaKiyoshi Suzuki
    • B23B25/02B23B29/12B23P17/06B23B1/00B23B37/00
    • B23B25/02B23B29/125B23P17/06Y10T29/143Y10T407/137Y10T407/235Y10T407/24Y10T82/10
    • Short metal fibers are directly produced from a work metal block. The product fibers are very thin and short, e.g., 200 .mu.m in diameter and 20 mm in length to the maximum. A bar like or pillar like metal bar is rotated, to which an elastic cutting tool is contacted. The entering width of cutting edge corresponds to length of fiber to be obtained. The tool is effected with fine feed and at the same time positively generated with self excited vibrations. The self excited vibration forcibly separates and divides a thin layer fiber accumulating at the cutting edge of the tool one by one without having connections in length of the fibers to each other. The process produces needle like fibers of microscopic cross sectional area. The thin and short metal fibers are produced in the same number as number of the self excited vibrations, and the fiber is right angled in axis with the cutting direction.
    • 短金属纤维由工件金属块直接生产。 产品纤维非常薄且短,例如直径为200μm,长度为20mm。 杆状或柱状的金属棒被旋转,弹性切削工具与之接触。 切削刃的进入宽度对应于要获得的纤维的长度。 该工具用精细的进料实现,同时由自激振动积极产生。 自激振动强制地分离和分割在工具的切割边缘处累积的薄层纤维,而不会使纤维的长度彼此连接。 该过程产生具有微观横截面积的针状纤维。 薄金属纤维和短金属纤维的产生与自激振动的数量相同,并且纤维与切割方向成直角。