This Paper introduces several failures of SIEMENS 840d system and its analysis.
本文介绍了西门子840d系统的几例故障并对其进行了分析。
Control system: Siemens 840d numerical control system, four axes and one spindle.
控制系统：采用西门子840d数控系统，共有四个进给轴和一个主轴。
The formula for calculating the average crack growth rate of 840d wheel web hole is presented.
给出了840d车轮辐板孔平均裂纹扩展速率的计算公式。
Based on the 840d and PLC Discussion and Analysis of CNC machining centers control system is achieved.
基于840d和P LC探讨和分析了数控加工中心控制系统的实现。
The second time development of Siemens 840d OEM software is done and the HMI for CNC camshaft grinding is established.
本文对西门子840dOEM软件进行了二次开发，建立了全数控凸轮轴磨削人机界面。
SINUMERIK 840D numerical control system that Siemens Company offered has offered the better platform for our secondary development.
西门子公司提供的SINUMERIK 840D数控系统为我们的二次开发提供了更好的平台。
The fracture surfaces of 840d wheel web with a hole have been investigated and the intervals of fatigue line also have been measured.
对840d车轮辐板孔疲劳断口形貌进行观察并测量疲劳弧线间距。
This topic mainly studies control system in the wheel hub. Controlfunction of the system is realized by using SIEMENS 840D control system.
本课题目标是研制车轮轮毂旋压控制系统，利用西门子840D控制系统实现整个系统的控制功能。
The method of CNC programming can be used to compensate the thermal deformation error effectively, which is based on 840D CNC system and using R parameter flexibly.
基于840D数控系统，通过对R参数的灵活运用，提出一种能够对温度误差有效补偿的数控程序编程方法。
The software and data structure for SINUMERIK 840D system, and the focus on analyze memory space for software and data, including correlative communication were introduced in this article.
本文介绍了SINUMERIK 840D数控系统软件和数据结构，重点分析软件和数据的存储位置及相关通讯。
The software and data structure for SINUMERIK 840D system, and the focus on analyze memory space for software and data, including correlative communication were introduced in this article.
本文介绍了SINUMERIK 840D数控系统软件和数据结构，重点分析软件和数据的存储位置及相关通讯。
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