查询词典 machining

Moreover, the measures to reduce the scallop error in machining of the large sculptured surfaces are discussed as well.

对五轴联动加工中的残余高度误差进行较为严格的分析，并提出有效控制几何误差的方法和措施。

Therefore, grinding cracks, subsurface scathe and machining parameter's effect to are worthwhile to be studied.

因此，研究磨削裂纹、尤其是亚表面微裂纹的形成与扩展，及其与加工参数的关系；具有重大的现实意义。

Screw thread gauge is the most extensive and practical detector in thread machining.

螺纹量规是螺纹加工中应用最广泛、实用的检测工具。

A self-centering plate, precision honed pipe section and tight machining tolerances ensure higher installed performance.

阿自定心板，精密管段磨练和严格的加工安装公差确保更高的性能。

Front-end floating pneumatic power chuck, with combined functions of self-centering clamp and floating compensation clamp, is used for machining of pipe end.

前置式气动浮动动力卡盘是集自定心夹紧和浮动补偿式夹紧二功能于一身，用于管道的端头加工，加工笔直管道时，使用自定心夹紧功能；加工的管道若有弯曲变形或加工弯管端头时，则采用定心卡盘辅助定心，用本卡盘的浮动夹紧功能夹紧管子后，退开定心卡盘再加工管子端头。

This paper presents a kind of method without guide to guide a self-propelling machining operation.

提出一种引导无导轨自移动作业机械的引导方法。

The workpiece machining sequencing problem in case of one machine tool is studied with genetic algorithm and advanced/tardy scheduling model .

运用遗传算法和提前／拖期调度模型，研究了在单机情况下工件加工排序问题，提出了一个新算法。

This CAD system is suitable for the machining equipments with many series or those that are convenient for seriation development.

该CAD系统适用于产品系列多、便于进行系列化开发的石材加工设备。

Three kinds of cutting material were selected to machine stainless steel machining experiment such as ceramic cutting tools, cermets cutting tools and coated carbide cutting tools, in which the best range of each kind of tool material was founded. For example, LT55 was suitable to be machine lCrl8Ni9Ti as the cutting speed surpasses 120m/min and have a good wearable property.(3) Surface roughness was measured under different cutting conditions. Feed rate played the most important role in impacting surface roughness, and then cutting speed.(4) Chip patterns in different cutting speed with various cutting materials were analyzed. With the increase of turning speed, chip became shorter and was easy to be broken. For instance, serration chip appeared in high sped turning stainless steel with LT55;(5) Work hardening of austenitic stainless steel was analyzed.

陶瓷刀具LT55适合在Vc=120m/min以上切削加工不锈钢，耐磨性好；③通过试验研究了不同刀具材料高速车削加工1Cr18Ni9Ti不锈钢时的表面粗糙度，其中进给量对表面粗糙度的影响最为显著，其次为切削速度；④分析了不同刀具材料在不同切削速度下加工1Cr18Ni9Ti不锈钢的切屑形态，随着车削速度的提高，切屑变短且易断屑，其中LT55陶瓷刀具切削加工时产生了锯齿状切屑；⑤分析了奥氏体不锈钢的加工硬化机理及其对刀具磨损的影响；⑥根据试验结果分析在不同切削条件下切削不锈钢的刀具磨损形式及其磨损机理。

The influence of dynamic characteristics of positioning servo-system to machining precision is studied.

同时，将前馈控制与模型参考时滞控制相结合，对位置控制系统进行了仿真研究，实现了位置伺服系统的零跟随误差控制，为进一步提高位置伺服系统的控制精度和鲁棒性开辟了新途径。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。