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    • 9. 发明专利
    • Cutter tool having helical tooth made of hard material and manufacture thereof
    • 具有硬质材料及其制造的螺丝刀的切割工具
    • JPS59107820A
    • 1984-06-22
    • JP21461382
    • 1982-12-09
    • Nachi Fujikoshi Corp
    • OOWADA KUNIO
    • B23C5/00B23C5/10B23H7/02B23P15/28
    • B23C5/00
    • PURPOSE:To facilitate manufacture of a cutting tool having a helical tooth made of a hard material, by a method wherein a blade having a helical face is cut out of a cylindrical or columnar material through a wire electric discharge machining method, which is soldered to a tool body. CONSTITUTION:After positioning of a wire electrode 4 against a center line A of an end face of a material 1 at a very small gap by fixing the cylindrical material 1 made of a hard material to a holding tool 2 and making the center line A of the end face 3 of the material 1 into a reference line, a parallel feed in the direction of arrow Y is given to the material 1 while the wire electrode 4 is being revolved in the direction of arrow X. With this construction, a part of the material 1 between 5a-5b, 6a-6b is cut off through twisting. Lengthened twisted blades 7, 8 are formed by cutting off a part between 5c-5d, 6c-6d similarly. A required cutting tool is obtained by soldering the blade obtained as mentioned above to a twisted surface of a tool body not illustrated.
    • 目的:为了便于制造具有由硬质材料制成的螺旋齿的切削工具,通过一种方法,其中通过线材放电加工方法从圆柱形或柱状材料切割具有螺旋面的刀片,该方法被焊接到 一个工具体。 构成:通过将由硬质材料制成的圆柱形材料1固定到保持工具2上,使线电极4以非常小的间隙相对于材料1的端面的中心线A定位,并使中心线A 将材料1的端面3插入到基准线中,在线电极4沿着箭头X的方向旋转的同时向材料1施加沿箭头Y方向的平行进给。这样构成, 5a-5b,6a-6b之间的材料1通过扭转被切断。 通过类似地切断5c-5d,6c-6d之间的部分来形成加长的扭转刀片7,8。 通过将如上所述获得的刀片焊接到未示出的工具主体的扭曲表面上来获得所需的切削工具。