对削

The new combination drilling dynameter is developed, which has the characteristics of high accuracy, little interference between forces and simple structure.

研制了测量精度高、相互干扰小、制造简单的新型组合式钻削测力仪和钻削力测量系统，对新刃形钻头的钻削机理进行了实验研究。

In ELID grinding, use imperceptible emery wheel to undertake grinding can obtain very low surface surface roughness, came true to written guarantee to steel of hard alloy exceed accurate mirror grinding.

在ELID磨削中，采用微细砂轮进行磨削可以获得很低的表面粗糙度，实现了对钢结硬质合金的超精密镜面磨削。

Based on those principle above, this paper excogitate two suits of drive designing schemes: the Generating turning and the Generating milling, and put the latter into practice.

依据上述原理，本文提出了范成法车削和铣削两种传动系统的设计方案，并对车削法方案进行了实施。

According to the technical requirement of the design,we did the functional decomposition and built morphology matrix in design wood chipper ,and optimized the design plan by fuzzy assessment.

论述了功能设计法的基本概念和实施步骤，根据木材削片机设计的技术要求，对木材削片机的功能进行分解，并建立了木材削片机的形态学矩阵。

The soil cutting experiment indicates that the interior friction angle and the shear intensity of soil is reduced;and the maximum principal stress is decreased due to the vibration load;it induces the decrease of digging resistance.

从理论上研究了振动掘削岩土的减阻机理，土壤剪切试验结果表明，振动载荷能够使土壤的内摩擦角变小、抗剪强度下降、最大主应力值减小，从而导致挖掘阻力降低；对土壤在静态载荷和振动载荷作用下的失效过程进行了对比仿真实验研究，可知土壤在振动加载的条件下强度显著下降，并提前于相同条件的静态加载而破坏，同时跟踪X方向的载荷发现，振动掘削最大掘削阻力可降低50%。

Invar 36 is a kind of low expansion alloy, and it is difficult to machine because of its plastic, ductility and low heat conductivity. During Grinding, the part surface is easy to burn and wound for high grinding temperature and wheel adhesion.

Invar 36是一种低膨胀合金，其塑性大、韧性高、热导率低，磨削时所产生的磨削力大，磨削温度高，工件表面易于烧伤和划伤，对砂轮的粘附较严重，属于典型的难于加工材料。

This paper sums up the principles of CNC programming about high-speed mill,the production strategy of toolpath in high-speed mill is analyzed with several typical examples,and the optimum ways of programs in post procession are explained.

总结高速铣削编程的原则，通过几个典型的例子重点分析高速铣削刀具路径生成的策略，同时对高速铣削时程序后置处理的优化方法进行说明。

In the analysis of dynamics cutting angle, the following phenomenon is discovered first time: the minimize of dynamics clearance angle is not monotone decreasing with the vibration frequency , and appear peak value periodically, which exist is the disseparation region and approach the separation region.

在对振动钻削中切削刃上各点的动态角度的分析中，首次发现在振动钻削过程中动态后角的最小值不是随着频率或频转比的增大单调下降，而是周期性的出现波峰值，这些波峰值都出现在不分离区，而且是接近于分离区处，这是由振动钻削过程中的变速特性引起的。

The mechanism of pulsed laser milling is introduced briefly,and the effects of the technological parameters such as the single pulse energy of laser, the repetitional frequency,the laser beam scanning speed and the assistant huffing pressure are investigated.

在分析脉冲激光铣削材料去除机理的基础上，系统研究了激光单脉冲能量、重复频率、激光束扫描速度和辅助吹气压力等工艺参数对硬质合金激光铣削量和质量的影响，观察不同工艺参数条件下激光铣削的表面微观形貌。

Thorough theoretical analysis and experimental study are needed for purpose of whole system info. It is a foundation of high speed grinding process technology.

对磨削机理和磨削加工工艺进行深入的理论分析和试验研究，以期形成较完整的理论体系，为高速磨削工艺技术研究提供基础。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。