The casting residual stress is one of the major factors to decreasing machining precision and dimension stability. 铸件的残余应力是影响铸件加工精度及尺寸稳定性的主要原因之一。
Shaft parts are one of the most common components in the machining process, determining the working procedure dimension plays a leading role in shaft parts processing. 轴类零件是机械加工中最常见的零件之一,工序尺寸的确定在轴类加工过程中起着主导性作用。
Inspection machining dimension of propeller shaft ( intermediate shaft or counter shaft). 螺旋桨与轴胶合联结螺旋桨轴(间轴)加工尺寸检查。
The author machines complex shape microminiature parts on a precision milling machine developed by themselves, and study the machining technique of three dimension complex shape metal parts. 作者在自研的精密铣床上,进行了微小复杂形面零件的切削加工实验,对用精密铣削技术加工三维微细金属零件工艺进行了较深入的研究。
Application of Ceramic Cutting Tool in the Machining of Large Dimension Thin-wall Workpiece 陶瓷刀具在大型薄壁件加工中的应用
Grinding is a main process of machining hard and brittle materials, which can realize high shape and dimension precision. In the process, there is a contradiction between the surface quality and the material removal rate. It can be alleviated by the ultrasonic vibration of workpiece. 磨削是加工硬脆性材料并获得高加工精度的常用工艺,加工过程中表面质量与材料的去除率是一对矛盾,超声振动的引入在很大程度上缓解了这一矛盾。
Applied to many machining conditions, the proposed model can reflects the effects on the machining dimension errors of the system deformation caused by cutting force. 所给出的表面误差预测模型较全面地考虑了端铣加工过程,适于多种加工条件,能够反映端铣加工过程由切削力导致的系统变形对加工误差所造成的影响。
For solid load as in ultrasonic drilling and machining, when the lateral dimension of the tool is much less than that of the transducer, its effect on the resonance frequency of the transducer is small. 对于固体负载,当超声加工工具的长度减小时,换能器振动系统的共振频率升高。
This essay, starting from the dynamic feature of machining process, made a careful analysis of the application of several common forecasting modeling finish size. On the basis of it, three forecasting model of machining dimension applicable to different occasions were put forward. 本文从机械加工过程的动态特征出发,对几种常用的加工尺寸预报模型的适用性进行了深入分析,在此基础上提出了三种适用于不同应用场合的加工尺寸在线建模预报方法。
Research on Forecasting Model of Machining Dimension 机械加工尺寸预报建模的研究
The reason for the leak of sealed taper screw was found through analysis and calculation, after the improvement of machining method and dimension size, the seal effect was fine. 对密封不良的圆锥螺纹副进行分析和计算找出问题所在,改进加工方法和尺寸,获得了良好的密封效果。
In contrast to traditional macro-plastic machining, not only are machining objects small and machining accuracy high, but also are there many dimension effects in machining process. 与传统的宏观塑性加工不同,微细塑性成形不但加工对象尺寸小,要求精度高,而且在加工过程中材料所表现出来的性质与宏观加工相比也有许多不同之处,尺度效应将会发生。
One of the most important aspects of Manufacturing Technology is High Precision Machining and Machining of microminiature parts. With the development of MEMS Technology& Nano Technology, the machining of three dimension microminiature component especially complex shape microminiature parts become more and more important. 机械制造技术的重要研究方向之一是高精度和微小型化零件的加工,随着微机电和纳米技术的快速发展,三维微小构件特别是复杂形状微小零件的制造显得越来越重要。
Two Prediction Methods of Machining Dimension and Their Comparsion 机械加工尺寸预测的两种方法及其比较
Research on Forecasting and Control of FMS Machining Dimension and Process Capability FMS加工尺寸及工艺能力预测控制研究
The programming for NC machining of the two dimension parts based on the image 基于图像的二维零件的数控加工编程
Machining and dimension measuring under disassembly for the bearing base inner hole 轴承座内孔加工与无拆卸测量
Effect of Amplitude during Precision Ultrasonic Vibration Cutting upon Machining Dimension Error of Workpiece 超声振动精密切削振幅对工件尺寸误差的影响
After analyzing data series of machining dimension and process capability of FMS, result of its strongly self-correlation shows that time series analysis is applicable to data series analyzed. 本文首先对柔性制造系统(FMS)加工尺寸及工艺能力数据序列进行分析,其强自相关性说明,时间序列分析方法是适用的。
Particle swarm optimization was applied to solve manufacturing cell reconfiguration problem. Particles with sum machining lines dimension were established to assign workpieces to machining lines. 为解决可重构制造系统的制造单元重构求解问题,采用粒子群算法进行求解,构造总加工路线数维的粒子空间,实现工件数量的多加工路线分配。
Based on the inspection, modeling and analysis of machining dimension, this paper proposes a new way to evaluate tool wear and life. 在对机械加工尺寸跟踪检测和对检测数据进行建模分析的基础上,提出对刀具磨损状况及寿命进行估计和预测的新途径;
In this paper, the turning surface profiles were measured with a contact stylus profiler, and the influences of the different machining conditions on the fractal dimension D were also analyzed. 利用触针式轮廓仪对车削加工的表面轮廓进行了测量,分析了不同工艺参数对表面分形维数D和表面粗糙度参数aR的影响。
Difficult point of machining are easy deformation when installing jig and difficult to ensure the dimension precision. 加工难点为装夹时容易变形,尺寸精度难以保证。
Forecasting of machining dimension is the necessary requisite in machining on-line quality control, the key technique in realizing forecasting compensatory control. 加工尺寸的预报建模是进行机械加工质量在线监控的必要条件,也是实现加工误差预报补偿控制的关键技术。
With an example, discusses the basic thought to solve machining dimension and tolerance of workpiece, proposes and expounds that the two-link dimensional chain is an important and decisive factor to find deviation of machining dimension in the parallel dimensional chain. 结合实例论述求解机械加工工艺尺寸及公差的基本思路;提出二环机械加工工艺过程尺寸链是并联尺寸链中求解和处理工序尺寸的偏差时重要决定因素。
Combining the forecasting of machining dimension with that of process capability in a machining process, principle and method of feed-back compensative control is proposed in the paper. 将加工尺寸预测与工艺能力预测结合起来,提出对加工尺寸进行反馈补偿控制的原理和方法。
On-line modeling and forecasting for machining dimension of FMS is studied and carried out by applying time series analysis theory. 应用时间序列分析原理和方法对柔性制造系统(FMS)加工尺寸数据序列进行在线建模。
The machining precision can be improved and the dimension scope of machining the polygon prism is enlarged by using the proposed compensation method. 采用这种误差补偿方法可以大大地提高车削多面体的精度,扩大车削多面体的尺寸范围。
The mate-grinding for axial mate dimension of valve spool and valve sleeve is the key process during machining, and the axial mate dimension is called as overlap values. 阀芯和阀套的轴向配合尺寸的加工是伺服阀制造过程中的关键工序,这种轴向配合尺寸通常称之为叠合量。
For the decreasing of machining cost, the dimension of chip increases continuously. 且为了降低单元制造成本,要求芯片的直径不断增大。