As shown in Figure 1, for example as for the hard lamination tunic 20 which is provided in blade section 14 of end mill 10, Al x Cr1-x-y Y y (B a C b O c N1-a-b-c) being similar, the 1st tunic 22 which is formed and, M (B d C e O f N1-d-e-f) being similar, the 2nd tunic 24 which is formed, alternately large number being something which is laminated at lamination period t inside the range of 0.2nm - 100nm, according to this kind of hard lamination tunic 20, tunic hardness to become something whose 3000 - 3500 is very hard with HV0.025, SKD11 (60HRCThe resistance abrasiveness which is superior even in when cutting work is done) and so on vis-a-vis the hard material (durability) it reaches the point where it is obtained.
展开▼
机译：如图1所示，例如对于设置在立铣刀10的叶片部14中的硬质层压外衣20，Al x Cr 1-xy Y y （B a C b O c N 1-abc ）相似，形成的第一束上衣22，M（B d C e O f N 1-def ）为类似地，形成的第二上衣24，在层压周期t内在0.2nm至100nm的范围内被层压的第二上衣24，根据这种硬层压上衣20，上衣硬度变为其3000-3500。 HV0.025，SKD11（60HRC）的硬度非常高，即使在进行切削加工时也具有优越的耐磨性），相对于坚硬的材料（耐用性），它达到了极限。
展开▼
