公开(公告)号：US06846135B2

公开(公告)日：2005-01-25

申请号：US10390968

申请日：2003-03-18

申请人： Takahito Kuroda ,  Ryosuke Okanishi ,  Yasushi Sakamoto ,  Katsutoshi Maeda

发明人： Takahito Kuroda ,  Ryosuke Okanishi ,  Yasushi Sakamoto ,  Katsutoshi Maeda

IPC分类号： B23C5/10 ,  B23B5/10

CPC分类号： B23C5/10 ,  B23B2228/52 ,  B23C2210/082 ,  B23C2210/084 ,  B23C2210/48 ,  B23C2224/24 ,  Y10T407/1908 ,  Y10T407/1946 ,  Y10T407/1948 ,  Y10T407/1966

摘要： In a radius end mill having a bottom edge formed on the end face thereof, a radius edge designed in a substantially quarter arc shape and formed at a corner portion thereof, and an outer peripheral edge formed spirally on the side surface thereof, the bottom edge and the radius edge being continuously connected to each other at a connecting point A while the radius edge is continuously connected to each other at a connecting point B, when a view taken along a plane that passes through the connecting points A and B and crosses a rake face of the radius edge is represented by an R cross-sectional view, the rake face of the radius edge is designed to have a convex curved line extending from the connecting point A to the connecting point B in the R cross-sectional view.

摘要翻译： 在具有形成在其端面上的底部边缘的半径立铣刀中，设置成大致四分之一弧形并形成在其角部的半径边缘，以及在其侧表面上螺旋形成的外周边缘， 并且在连接点B处半径边缘彼此连续地连接的半径边缘处于连接点B处，当沿着穿过连接点A和B并穿过连接点A的平面的视图 半径边缘的前刀面由R横截面图表示，半径边缘的前刀面被设计成在R截面图中具有从连接点A延伸到连接点B的凸曲线。

公开(公告)号：US5322394A

公开(公告)日：1994-06-21

申请号：US968300

申请日：1992-10-29

申请人： Ryosuke Okanishi ,  Kazuyoshi Sasaki ,  Takahito Kuroda ,  Keiji Ishikawa ,  Osamu Goto

发明人： Ryosuke Okanishi ,  Kazuyoshi Sasaki ,  Takahito Kuroda ,  Keiji Ishikawa ,  Osamu Goto

IPC分类号： B23C5/10 ,  B23C5/00

CPC分类号： B23C5/10 ,  Y10T407/1904 ,  Y10T407/1948 ,  Y10T407/1952 ,  Y10T407/1966

摘要： A highly stiff end mill comprising a shank, a plurality of helix cutting edges on the periphery of the end mill, the end mill being characterized in that a radial rake angle of the helix cutting edges in a cross section perpendicular to the longitudinal axis of the end mill is set in the range of -29.degree. to 0.degree. and a core diameter of the end mill is set in the range of 70 to 90% of the outside diameter of the end mill.By selectively determining the negative rake angle in the range described above, this end mill is applicable to hard materials and has general-purpose properties. The improper factors of the end mill, such as increased cutting resistance, can be compensated for by setting the core diameter thereof to the range described above. This end mill is also structured to be able to cut materials with less hardness values as well as hard materials, thereby covering a wide range of applications.

摘要翻译： 一种高刚性端铣刀，其包括柄，在端铣刀的周边上的多个螺旋切削刃，所述端铣刀的特征在于，所述螺旋切削刃的垂直于所述螺旋切削刃的纵向轴线的横截面的径向前角 端铣刀设定在-29°至0°的范围内，端铣刀的芯径设定在立铣刀的外径的70％至90％的范围内。 通过选择性地确定上述范围内的负前角，该立铣刀适用于硬质材料，具有通用性。 可以通过将芯直径设定在上述范围来补偿端铣刀的不正确因素，例如提高切削阻力。 该立铣刀还被构造成能够切割具有较低硬度值的材料以及硬质材料，从而覆盖广泛的应用。