为了提高大型对称自由曲面的加工效率，提出了一种新型的对称加工方法，并分析了对称加工的特点。
In order to enhance the machining efficiency of a large symmetrical freeform surface, this paper put forward a new concept of symmetrical machining(SM), analyzed the characteristics of SM.
利用现代的机械加工技术，服装道具总监艾沃·科温尼得以制造出史上第一件完美对称的维德头盔。
Using modern machining techniques, Costume Props Supervisor Ivo Coveney was able to create, for the first time, a perfectly symmetrical Vader helmet.
统计分析了焊接缺陷主要是表现为锡球断路、焊锡过流、锡球分布不对称以及烧焦和锡溅，主要受锡球大小、焊盘相对位置以及有关加工参数的影响。
By statistical analysis, the defects are tin-ball short, overflowing, dissymmetry, splash and scorch, which are mainly affected by the tin-ball size, pad positions, and process parameters .
计算结果指出，当轴棱锥的截面为圆对称的理想加工时，轴棱锥产生的光场分布为近似理想的零阶贝塞耳光。
Results show that if the cross-section of the axicon is ideally manufactured in circular symmetry, the field distribution behind the axicon is approximately an ideal Bessel beam.
详细论述了“展成法”加工凸轮轮廓曲线的原理；介绍了这种方法在对称凸轮轮廓曲线加工中的应用。
This paper expounds a theory of processing the cam outline curve by the expansion method, and also introduces its application to symmetric the cam outline curve.
这表明，对称性汉字中的具有冗余信息的格式塔部件促进了识别汉字的加工过程。
These showed that the Gestalt radical of symmetrical Chinese characters carried redundant information promoted the processing of recognition of Chinesecharacters.
以一种梁-质量块结构的加速度计为模型，为了在加工过程中，得到完整的质量块结构，使结构具有更好的对称性，对各种凸角补偿方式进行了研究。
To acquire intact mass structure with better symmetry, various methods of convex corner compensation were studied based on a sort of accelerometer of beam-mass structure.
目前，液压阀存在互换性差、不对称阀芯的设计加工困难等不足。
At present, hydraulic valve has the deficiency of inadequate interchangeability and machining difficulty of unsymmetrical valve spool.
在电火花铣削加工中，由于工具电极作旋转运动，其损耗呈轴对称分布，使工具电极的补偿成为可能。
In electric discharge milling machining (EDMM) process, the rotation of the tool electrode makes tool wear be axial symmetrical distribution, so it is possible to be compensated.
摆动辗压是一种新兴的塑性加工工艺，属于非对称连续塑性变形。
Rotary forging is a new technology in plastic process. It is a non-symmetrical and continuous plastic deformation.
但由于加工误差、驱动结构不对称、扰动等因素，使得活动梳齿相对固定梳齿发生偏转。
However, due to fabrication error, asymmetric drive structure, small disturbance and so on, the movable comb fingers move laterally and rotationally from the fixed ones.
本发明取消了轧机本身的框架(牌坊又称小框架)和固定整个轧机的大框架，因此结构简单，重量轻，加工操作及换辊方便，成本低，而且实现了对称调整。
This invention cancels frame of mill self and big frame to fix whole mill, which realizes simply structure, light weight, convenience to operate and change, low cost and symmetric adjust.
球对称梯度折射率微球透镜具有体积小、光路短、外形易加工、使用易调整，且无螺旋光线、像差小等优越性能。
The spherical gradient refractive index micro-lens with small volume and short optical path can be easily shaped and conveniently adjusted, and has no spiral rays and low spherical aberration.
针对非轴对称非球面的成形加工法柔性不足及球形砂轮加工法对工具和机械的要求太高的缺点，提出采用普通圆弧金刚石砂轮加工的平行磨削法。
In accordance with the difficult problems of grinding non-axisymmetric aspheric surfaces with 5-axis CNC machining and mould grinding, a new parallel grinding method is put forward.
提出了一种新的磁力研磨工艺磁粒喷洒加工系统。它主要应用于非轴对称件的加工，并从理论上对该方法进行了初步的探讨。
A new technology of magnetic abrasive finishing (MAF) has been theoretically discussed in the article, which is a magnetic abrasive jet machining system.
近年来，一些非圆截面空心零件采用旋压技术进行加工，突破了传统旋压技术的范畴——旋压只能加工轴对称回转体的空心零件。
In recent years, some of the hollow parts with non-circular section can be produced by spinning, which breaks through the limit of spinning only producing hollow parts with circular section.
通过理论分析和试验表明此方法可达到提高非轴对称非球面的加工精度的效果。
With grinding experiment and analyzing measured data, it is obvious that new compensating metho…
通过理论分析和试验表明此方法可达到提高非轴对称非球面的加工精度的效果。
With grinding experiment and analyzing measured data, it is obvious that new compensating metho…
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