阅读说明：本技术 铣削刀头及球头立铣刀 (Milling cutter head and ball end mill ) 是由 刘东亨 于 2020-03-24 设计创作，主要内容包括：一种铣削刀头,具有一中心刃(101)、分别从中心刃的两端沿着铣削刀头的外周延伸的两主切刃(103)以及对称布置在中心刃两侧的两楔角面(111)；中心刃(101)位于铣削刀头的最前端,并穿过铣削刀头的旋转中心；两主切刃(103)与中心刃(101)圆滑过渡相接,且旋转轨迹在同一半球上；每一主切刃(103)的旋转方向的前方依次形成有前角面(131)和用于限定出排屑槽的主排屑面(132)；每一主切刃(101)的旋转方向的后方形成后角面(133)；两楔角面(111)的相交线构成中心刃(101)；每一楔角面(111)的一端与其中一主切刃的前角面(131)及主排屑面(132)相接,楔角面(111)的另一端与另一主切刃的后角面(133)相接,从而在中心刃的每一侧均形成了贯通其中一主切刃的排屑槽(136)至另一主切刃的后角面的空间。该铣削刀头可提高铣削刀头的寿命。还公开具有该铣削刀头的球头立铣刀。(A milling cutter head having a central edge (101), two main cutting edges (103) extending from both ends of the central edge along the periphery of the milling cutter head, respectively, and two wedge faces (111) symmetrically arranged on both sides of the central edge; the central edge (101) is positioned at the foremost end of the milling cutter head and passes through the rotation center of the milling cutter head; the two main cutting edges (103) are connected with the central edge (101) in a smooth transition way, and the rotating tracks are on the same hemisphere; a front corner surface (131) and a main chip removing surface (132) for limiting a chip removing groove are sequentially formed in front of each main cutting edge (103) in the rotating direction; a rear corner surface (133) is formed behind each main cutting edge (101) in the rotating direction; the intersection line of the two wedge angle surfaces (111) forms a central blade (101); one end of each wedge angle surface (111) is connected with the front angle surface (131) and the main chip removing surface (132) of one main cutting edge, and the other end of the wedge angle surface (111) is connected with the back angle surface (133) of the other main cutting edge, so that a space penetrating through the chip removing groove (136) of one main cutting edge to the back angle surface of the other main cutting edge is formed on each side of the central edge. The milling cutter head can prolong the service life of the milling cutter head. A ball nose end mill having the milling cutter head is also disclosed.)