查询词典 machining

The difference and relationship among design feature、machining feature and FEM feature are clearly presented. The necessary of feature mapping in product concurrent design system is discussed, and its theory and method are systematically studied.

详细分析了特征信息在产品生命周期中各应用环节的重要作用，揭示了设计特征、工艺特征以及分析特征的本质区别和内在联系，讨论了特征变换的必要性和特征变换的理论方法，指出建立一种柔性的特征表示模型，开发基于约束和参数驱动的特征造型系统，能方便的实现不同应用特征之间的变换，是实现CIM和CE的关键技术。

Also study the method of building machining control parameter and NC program contraposing command format of the NC system.

根据鞋楦数控系统的指令格式，研究了数控加工程序中控制参数的确定以及数控加工程序的生成方法。

These days with there being the gap in the precision and the capability of numerical control machine between our country with international advance level, this paper puts forward the projet of multiple axes rotary spindle head structure on the foundation of setting up direct drive technology, in order to satisfy needs of exceed high speed cutting and exceed precision machining.

目前国产数控机床精度、性能与国际先进水平还存在一定差距，文中在建立了直接驱动技术概念的基础上，介绍了万能自动镗铣头结构方案，以满足超高速切削、超精密加工等先进制造技术的需要。

The procession code program of NC punch press is the to NC-machining.

数控冲床的加工代码程序是数控加工的关键所在。

Company currently employs 1,300 people, covers an area of 150,000 square meters, with CNC machining centers, CNC punch press, heat treatment and other advanced equipment, complete sets of equipment more than 800 sets of 120 million yuan in fixed assets.

公司现有员工1300人，占地15万平方米，拥有数控加工中心、数控冲床、热处理成套设备等先进设备800余台套，固定资产1.2亿元。

The machining precision of the thickness parameter for radome of missile has the direct effect on the missile performance.

导弹整流罩壁厚的精度对导弹的整体性能有着直接的影响。

A total number of 27 machining conditions were designed to be conducted in a random sequence.

实验条件依实验设计有27种组合，实验顺序随机产生的顺序进。

Mr. Egloff, general manager of ProTech, said:"With a variable range of parts and freely programmable machining zones, convenient and nevertheless simple programming by the machine operator is an absolute must."

Egloff，对说 ProTech 的总经理的先生："有了一个部件可变范围和自由编程加工区，简单方便，但由机器操作方案是绝对必要的。。"

The ECM productivity of inner ratchet wheel is very high. Cathode piece is machined easily using WEDM. Its dimension is nicety. Cathode is not worn down in process,so a piece of cathode can be repeat used to machining tens or several hundred parts. The surface quality of inner ratchet wheel being machined is nice. There is no burr in the surface. Its surface roughness can reach Ra1.6μm.Its ...

应用电化学加工技术加工内棘轮，生产率很高；采用线切割加工片状工具阴极，制作方便、尺寸准确；加工过程中工具阴极无损耗，一片阴极可以重复加工几十至几百个零件；加工出的内棘轮表面质量好，无飞边毛刺，表面粗糙度可达Ra1.6 μm ；加工精度较高。

In this paper, first of all the fundamental principle of Kalman filter is described and a recurrence formula for Kalman filter by a state vector is derived. Then a mathematical model of machining error signals is developed taking a high precision leading screw lathe as an example.

本文首先阐述了卡尔曼滤波的基本原理，导出了卡尔曼滤波的递推表达式，然后以高精度丝杠车床为例建立了加工中误差信号的数学模型，并用PB-700型个人计算机仿真。

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。