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    • 58. 发明申请
    • END MILL
    • 末端铣刀
    • US20150251254A1
    • 2015-09-10
    • US14636776
    • 2015-03-03
    • Gühring KG
    • Murat MutluStefan WeimannClemens Gall
    • B23C5/10
    • B23C5/10B23C2210/203B23C2210/282B23C2220/04B23C2250/16Y10T407/1948Y10T409/303752
    • Described is an end mill with four straight front cutting edges arranged on a front side and a corresponding number of circumferential cutting edges that each emanate from the outer nose of the front cutting edges and are separated from each other by flutes. One of the front cutting edges passes over into a second cutting edge via a free surface intersecting line. The additional front cutting edges lying between the latter in the cutting direction are offset relative to each other by a first angular pitch of 180°, and end before the middle. So that the end mill can be used in an especially advantageous manner for incorporating dimensionally and positionally precise pilot holes or chamfering curved work piece surfaces, the first front cutting edge is offset relative to the second front cutting edge in the cutting direction by a second angular pitch ranging between 173° and 177°, preferably between 174° and 176°, wherein the first front cutting edge is offset relative to the next additional front cutting edge in the cutting direction by a third angular pitch ranging between 90° and 94°, preferably between 91° and 93°.
    • 描述了一种端铣刀,其具有布置在前侧上的四个直的前切削刃和相应数量的周向切削刃,其各自从前切削刃的外鼻部发出并且通过凹槽彼此分离。 其中一个前切削刃经由自由表面相交线穿过第二切削刃。 位于切割方向之间的另外的前切割刃相对于彼此偏移180°的第一角度间距,并且在中间之前结束。 因此,端铣刀可以以特别有利的方式用于结合尺寸和位置精确的导向孔或倒角弯曲工件表面,第一前切削刃相对于第二前切削刃在切削方向上偏移第二角度 间距在173°至177°之间,优选在174°至176°之间,其中第一前切割刃相对于下一个另外的前切割刃在切割方向上偏移90°至94°之间的第三角度间距, 优选在91°和93°之间。