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发明公开
CN101424292A 螺钉 有权

螺钉
摘要：
螺钉(11)具有杆部(12)和部分设置在杆部(12)圆周上的螺纹(13)，它确定一螺旋线(14)。在螺纹(13)的缺口(20、21)内设置由硬度大于螺纹(13)硬度的材料制成的切削体(26、36、46、56、66)。切削体(26、36、46、56、66)以沿螺旋线(14)定向的纵向方向这样定向，使得切削体的纵轴线(27，36，47，57，67)与螺旋线(14)的有关切线夹一从－35°至+35°的角度(A；B；C；D；E)。
摘要（英）：

A screw (11) has a shaft (12), a thread (13) which is arranged in at least some areas over the circumference of the shaft (12) and which defines a helix (14), and cutting bodies (26) made of a material having hardness greater than the hardness of the thread (13) and arranged in recesses of the thread (13), with the cutting bodies (26) having their longitudinal extension oriented along the helix (14) so that their longitudinal axes enclose an angle of -35 degrees to +35 degrees with the respective tangents of the helix (14). The cutting bodies are obliquely arranged in a plane included by the helix relative to the respective tangents of the helix, and/or the cutting bodies are obliquely arranged transverse to the plane included by the helix relative to the respective tangents of the helix.

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