1) Tool Tip
刀尖点
1.
To meet the need of high accuracy in NC machining,several errors and its cause have been analyzed from actual geometric angle of tool because tool tip of NC programming differs from cutting point of tool.
根据数控加工高精度制造的需要,从刀具实际几何角度分析编程刀尖点与切削刃切削点不重合而产生加工误差的几种情况和原因,阐明根据数控系统的补偿原理减小这种误差的基本方法和G41,G42,G40指令的应用技巧,对优化编制数控加工程序、保证加工精度有积极作用。
2.
The Tool Tip Offset in NC Turning;
研究了刀尖点与基准点运动轨迹之间的关系,揭示了刀具位置补偿的实质,提出了计算补偿量的具体方法,阐明了刀具位置补偿的建立、补偿及取消的全过程。
2) Imaginary tool nose spot
假想刀尖点
3) tool tip single-point touch
刀尖单点接触
4) pointed cutter
尖刀
1.
The preparation technologies of monocrystal diamond pointed cutters,including design of geometry parameters,selection of material,crystal orientation,incision,sharping,clamping,coarse grinding,finishing grinding and polishing are introduced.
介绍了单晶金刚石尖刀的几何参数设计、原材料选择、晶体定向、切割、开坯、装卡、粗磨、精磨和抛光等制备工艺,分析了晶体定向、装卡和研磨等工艺机理,并对制备的金刚石尖刀的刃口锋利度、圆弧半径以及整体状况进行了SEM检测。
5) knifepoint
[英]['naɪfpɔɪnt] [美]['naɪf'pɔɪnt]
刀尖
1.
The ultra-precision cutting is of the interaction between knifepoint geometry of the tool and work-piece.
指出超精密切削实际上是刀具刀尖部分与工件的相互作用,分析了金刚石刀具刀尖几何形状和切削刃的锋利度对超精密切削加工质量的影响。
补充资料：车削时进给量与刀尖半径粗糙度的关系
车削时，刀尖半径与进给量、表面粗糙度的理论值存在一定关系，我们选择进给量时一般不应超过此值。
h=re-(re²；-(0.5×f)²；)0.5
h为残留高度，而：
Ra=(0.25~0.33)h
因此:
fmax=(Ra×re/50)½；
h为残留高度，而：
因此:
| 刀尖圆角 mm | 圆刀片 mm | Ra/Rz µ；m | |||||
| 0.4/1.6 | 1.6/6.3 | 3.2/12.5 | 6.3/25 | 8/32 | 32/100 | ||
| 进给量 mm | |||||||
| 0.2 | 0.05 | 0.08 | 0.13 | ||||
| 0.4 | 0.07 | 0.11 | 0.17 | 0.22 | |||
| 0.8 | 0.10 | 0.15 | 0.24 | 0.30 | 0.38 | ||
| 1.2 | 0.19 | 0.29 | 0.37 | 0.47 | |||
| 1.6 | 0.34 | 0.43 | 0.54 | 1.08 | |||
| 2.4 | 0.42 | 0.53 | 0.66 | 1.32 | |||
| 6 | 0.20 | 0.31 | 0.49 | 0.62 | |||
| 8 | 0.30 | 0.36 | 0.56 | 0.72 | |||
| 10 | 0.25 | 0.40 | 0.63 | 0.80 | 1.00 | ||
| 12 | 0.44 | 0.69 | 0.88 | 1.10 | |||
| 16 | 0.51 | 0.80 | 1.01 | 1.26 | 2.54 | ||
| 20 | 0.89 | 1.13 | 1.42 | 2.94 | |||
| 25 | 1.26 | 1.58 | 3.33 | ||||
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条