公开(公告)号：US4564321A

公开(公告)日：1986-01-14

申请号：US604931

申请日：1984-04-27

申请人： Kunio Kondo ,  Katutoshi Haga ,  Tokunari Takeuchi

发明人： Kunio Kondo ,  Katutoshi Haga ,  Tokunari Takeuchi

IPC分类号： B23B51/04 ,  B23B51/08 ,  B23C5/10 ,  B23C5/22 ,  B23C5/20 ,  B23B51/00

CPC分类号： B23C5/2208 ,  B23B51/048 ,  B23C5/109 ,  Y10S408/713 ,  Y10T407/1912 ,  Y10T407/1924 ,  Y10T408/906

摘要： An end milling tool having an elongate body which has two flutes defining two elongate lands extending generally in an axial direction of the body. The two lands have first and second flute surface each facing in a direction of rotation of the end mill. The end mill carries at least two peripheral-cutting inserts for peripheral milling, an inner drilling insert for cutting a radially inward portion of a hole, and an outer drilling inserts for cutting a radially outward portion of the hole, each insert being replaceable and of a generally flat configuration having a back face held in contact with the appropriate surface of the body, and a front face opposite to the back face and including a cutting edge. The peripheral-cutting inserts are disposed in a staggered manner alternately in the first and second flute surfaces, such that the first flute surface carries the peripheral-cutting insert which is nearest to the end face of the body. The inner drilling insert is disposed on the end face of the land having the first flute surface, and the outer drilling insert is disposed in an area of the second flute surface adjacent to the end of the body.

摘要翻译： 一种具有细长主体的端铣刀，其具有限定两个沿主体轴向方向延伸的细长凸台的两个凹槽。 两个平台具有第一和第二凹槽表面，每一个面向端铣刀的旋转方向。 端铣刀承载至少两个用于外围铣削的周向切削刀片，用于切割孔的径向向内部分的内部钻削刀片和用于切割孔的径向向外部分的外部钻削刀片，每个刀片可更换并且 具有与所述主体的适当表面保持接触的背面和与所述背面相对的前表面并且包括切割刃的大致平坦的构造。 周边切削刀片以交错的方式交替设置在第一和第二凹槽表面中，使得第一凹槽表面承载最靠近主体端面的外周切削刀片。 内部钻孔插入件设置在具有第一凹槽表面的平台的端面上，并且外部钻孔插入件设置在邻近主体端部的第二凹槽表面的区域中。