1106 Study on Tool Life and Surface Roughness of High Speed Milling of Hardened Steel by Small Size Ball End Mill
1106 Study on Tool Life and Surface Roughness of High Speed Milling of Hardened Steel by Small Size Ball End Mill
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1106 小型球头立铣刀高速铣削淬硬钢的刀具寿命和表面粗糙度研究
DOI：
10.1299/jsmemecjo.2005.4.0_47
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Nakamoto
中科院分区：
文献类型：
--
作者：
H. Iwabe;H. Endo;K. Nakamoto
本文用高速主轴装置在小型球头立铣刀上高速铣削淬火钢，研究了加工表面的后刀面磨损和表面粗糙度。并研究了刀具寿命对最小质量润滑法的影响。主要研究结果如下。(1)切削刃的后刀面磨损量与切割长度成正比增加，后刀面磨损形状逐渐接近实际切割长度的形状。(2)研究表明，阶梯式进刀和MQL法向下铣削到每道加工终点均可获得较长的刀具寿命。(3)表面粗糙度与切割长度成正比增加。但采用与(2)中相同的冷却方法，直到切割长度2000m时，才能获得3μm的小表面粗糙度。(4)在切削条件下，双向铣削是一种有效的铣削方法，因为它的切削时间最短，约为其他类型铣削的70%，刀具寿命较长，约为顺向铣削最大刀具寿命的90%。
In this paper, the flank wear and the surface roughness of a machined surface are investigated by high speed milling of hardened steel on a small size ball end mill using a high speed spindle attachment. And also an investigation is carried out on the influence of a tool life on the minimum quality lubrication (MQL) method. The main results are as follows. (1) The flank wear of the cutting edge increases in proportion to the cutting length, and the flank wear shape gradually brings the shape of the actual cutting length close. (2) It is shown that the long tool life is obtained by the conditions of the step down pick feed and the down milling with MQL method to the end point of each milling process. (3) The surface roughness increases in proportion to the cutting length. But using the same cooling method described in (2), the small surface roughness of 3 μm is obtained till 2000m of cutting length. (4) Under the cutting conditions, bidirectional milling is an effective milling method by reason of the shortest cutting time that is about 70% of other types of milling and the longer tool life that is about 90% of the maximum tool life obtained by down milling.