加工方法

Measuring some turnery and grinding work pieces from the scene,we can get the good result that can explain this measuring diameter instrument has low price.And its measure method is simple,numerical value intuitional and accurate.Under the available school condition,it can self control,process,adju...

其实验效果良好，并说明，仪器价值低，测量方法简便，数值直观而准确，可以利用学校现有条件，自制加工调试和应用，从而改进了以前的测量手段和方法，提高了测量精度和实验教学的质量。

Just under this background, studying on the flight mechanism of flapping-wing MAV and sample fabrication from the bionics are conducted in this dissertation. The kinematics equations of insect wings can be acquired by the observation and measurement on the natural insect in researching paper. The geometry model of insect is established by UG technology. The three dimensional grid during the insect moving in the flow field is achieved which adopted grid generation method. The characteristic of lift and drag are attained by simulation the surround flow field during the locomotion of wings, and the flight mechanism of insect is discussed. Based on this study, the physical flapping-wing MAV is fabricated by the acquirable materials and parts of apparatus in existence.

正是在这一背景下，本文从仿生的角度来研究微型飞行器的飞行机理与样机制作；通过查阅文献中对自然界中昆虫翅膀运动的观察与测量，获取了昆虫翅膀的运动方程；采用UG建模技术，建立昆虫的几何模型；采用网格划分方法，获取昆虫在流场运动时的三维网格；运用CFD方法模拟翅膀运动时周围的流场，获取昆虫运动时的升阻力特性，进而来研究昆虫的飞行机理；在此基础上，通过现有可用的材料加工制作仿生微型飞行器。

At the same time, some defects are pointed out: present fabrics are not properly applied, and most of looms can't produce woven perform whose property is similar in different directions. Their shearing strength are lower, utilization of mechanical properties are also smaller;Although three-dimensional braided composites is of excellent integrated structure, normal braided fiber is traveled from internal to external surface, which is passed through braider and becomes three-dimensional structure. If the external surface is cut or rubbed , it's possible for the fiber to break down. In addition , the shape of perform is easily changed after it's finished . To deal with respective shortcomings and highlight their own advantages, we're searching a new weaving method which is the combination between weaving and braiding .

但它们各自也具有许多缺点：目前机织物适应性不够，大多数织机还不能加工三维各向同性的机制预型件，材料剪切性能较低，力学性能利用率低；三维编织复合材料虽然具有良好的结构整体性，但常用的编织都是纤维从内表面穿到外表面，即穿过编织件的断面成三维结构，用这种方法制成的结构，如果外表面受到摩擦或切割损伤，就有可能导致结构的解体，此外编织结构的织物易变形，所以我们需要考虑一种新的结构，能同时发挥各自优势，又能同时克服二者缺点，这就是机织与编织结构相结合的方法。

This paper puts forward a new technological approach of removing the accumulated particle of workpiece in electrolytical machining using the auxiliary positive electrode insulated .

提出用绝缘辅助阳极消除电解加工工件表面积黑的全新工艺方法，通过正交试验给出了此种工艺方法的关键工艺参数及其最佳值。

On the analysis process of kinematical chain of machining centers, we discussed their workspace briefly.

本文对加工中心自动换刀装置的各种换刀时间的计量和标示方法也做了详细讨论，并提出了合理、实用的换刀时间计量和标示方法。

The principle,technology and methods of noncircular gear NC- hobbing machining are discussed.

探讨非圆齿轮的数控滚齿加工原理、技术和方法，设计一套新型的基于CAN和嵌入式L inux的非圆齿轮滚齿数控机床的构建方法。

In accordance with the invention, the hG-CSF protein can be prepared with high purity through rather simple process facilitating secretion of large amount of hG-CSF fusion protein into the periplasm, which does not require complicated processes such as solubilization and subsequent refolding required for isolation of the hG-CSF protein produced in cytoplasm as insoluble inclusion bodies by conventional techniques, thus, the hG-CSF protein can be widely used as an active ingredient in the development of supplementary agents for anticancer therapy.

根据本发明，通过促进大量hG－CSF融合蛋白分泌到周质中的相当简单的方法可以高纯度制备hG－CSF蛋白，所述方法不需要复杂的加工过程例如对于通过常规技术分离胞质中产生的作为不溶性包函体的hG－CSF所需的溶解和随后再折叠，因此，在开发用于抗癌治疗的补充药物的过程中可用hG－CSF蛋白广泛地作为活性成分。

The manufacturing technique of abrasive tool is a key and interrelated technique in graphite electrodes abrading, and it directly affects abrading results.

精度是研磨加工中很重要的一个工艺指标，本文对研磨复形精度进行了实验研究，认为从零件原形到石墨电极的过程中，精度主要损失在从原形到研具的过程中，并对此提出了二次成型的方法和制造原形时进行误差补偿的方法来解决这一问题。

Aiming at the limitations of the way to increase the static stiffness of the boring bar ,this paper adopts a novel thinking way that aggrandizes the dynamic stiffness of the boring bar to design a bar with a vibration absorption system in the boring bar .

针对一般方法增加深孔加工镗刀刀杆静刚度的局限性，采用了一种新颖的增加刀杆动刚度的思维方法，对内藏式减振刀杆进行了设计。

A paper of the membership card after surface processing take various forms and can be coated gloss method, or you can make the calendering or plastic mulch, etc.

纸制口的会员卡制作后表面加工方式多种多样，可以采用涂布光油方法，也可以进行压光或覆膜等方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。