查询词典 NC

The main contents of the dissertation are as follows: Firstly, through the study of the theories about the C tool radius compensation, the dissertation put forward a new algorithm of C tool radius compensation for the effective reduction of overcut while NC-machining.

主要研究内容如下：首先，根据刀具半径补偿原理，实现了一种新型的C刀具半径补偿算法，该算法能有效剔除在缩短型刀具半径补偿情况下产生的冗余刀位点。

Through the study of the theories about the C tool radius compensation, the dissertation put forward a new algorithm of C tool radius compensation for the effective reduction of overcut while NC-machining. C++ programming language is adopted to realize the algorithm, and examples of simulation are given to demonstrate the achievements of the algorithm.

根据刀具半径补偿原理，实现了一种新型的刀具半径补偿算法，该算法能有效剔除冗余刀位点，并且用C++实现了该算法，给出了相应的仿真实例。

The judging speed is accelerated To assure generating correct tool paths in 3-axis NC machining, the processing plans of undercut and overcut situations for whole tool trajectories are discussed Sometimes certain of complex problems can be simplified using an approximating surface offset strategy presented The surface reconstruction technology in reverse engineering is studied deeply.

讨论了三轴数控加工球头铣刀关于整个刀轨路径的漏切与过切的检查和处理方法，保证最终生成正确的刀具路径。研究了曲面偏距问题，提出了一种曲面近似偏距新策略，在保证正确结果的前提下，将复杂问题简单化。深入研究了逆向工程中散乱数据点的曲面重构技术。

At last, the author presents the multi-coordinate NC machining methods of turbine wheel with non-developable ruled paraboloid.

从理论上深入分析了叶型为非可展直纹抛物面的叶轮的五坐标侧铣、四坐标侧铣和三坐标端铣数控加工计算方法。

Taking FANUC-0i NC System for example,this paper introduces the methods of machining paraboloid and some points for atte-ntion by using macroprogram .

以FANUC-0i数控系统为例，介绍在数控车床上用宏程序加工抛物面的方法以及一些注意事项，介绍用分支语句和重复语句编写加工抛物面的粗、精加工程序的技巧。

In order to implement NC ultrasonic grinding of parallel ruled surface ,calculation of cutter location and post processing method were introduced.

介绍了新研制的数控超声磨削成形加工机床的各运动轴，以及实现平行直纹面数控超声磨削加工的刀位计算和后置处理方法。

For the request of NC machining the tool track can be input in the G codes wayIn this paper there are analysis, calculation and simulation modeling to 2-DOF and 3D0F parallel translation mechanism.

根据利用并联机构进行数控加工的要求，本文还开发了接受以G代码的方式输入的刀具点运动轨迹从而控制被选机构运动的功能。

The electron paramagnetism resonance suggested that annealing in hydrogen atmospheye effectively reduces the nonradiative recombination sites existing in the nc-Si and results in the enhancement of the luminescence efficiency.

电子顺磁共振实验表明氢气氛退火有效地降低了纳米硅中的非辐射复合中心而导致发光效率的提高。

This paper points out that the functions of subroutines and parametric programming of the NC system can complete machining of some special parts.

指出利用数控系统的子程序和参数编程功能可以完成一些特殊零件的加工。

According to product characteristics and available manufacturing resource, feature was classified and managed by machining equipment. Machining feature base was constructed to realize parametric and modular feature-based NC programming generation.

根据企业的产品特点和可用的制造资源，按加工设备对特征进行分类和管理，建立了加工特征库，实现了基于特征的参数化、模块化数控程序生成。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。