加工

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。

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。

From the viewpoint of life-span development, inhibitory function of emotional interference matures early and ages slowly. Inhibitory processing of emotional interference occurred earlier and continued longer than neutral interference on the time course. Besides, the anterior cingulated cortex plays an important role in emotional and non-emotional interference inhibition, and the inhibitory attention effects for emotional interference occurred in visual processing.

从终生发展来看，对情绪性干扰的抑制成熟得早且不易老化；从加工时程上看，对情绪性干扰的加工比对非情绪中性干扰的加工在发生得早且持续时间长；从参与加工的脑区来看，大脑内侧额叶前扣带回在情绪与非情绪干扰抑制中发挥重要作用，同时，视觉区中存在对情绪干扰的抑制加工。

A MS-windows simulation tool for synchrontron X-ray exposure and subsequent development;A tribological study of electrodeposited gold-copper-cadmium;Automatic Connection/Disconnection Mechanism of Microconnector;DEM microfabrication technique and its applications in bioscience and microflt, idic systems;Design and in-situ mechanical testing system for probe card/UV-LIGA-Ni microspring.

目前能进行大批量生产的非硅三维微加工技术主要有LIGA和DEM技术，LIGA技术可加工深达1000μm的微结构，获得和深宽比达50，但它需要昂贵的同步辐射光源和特制的X光掩模板，加工周期长，价格昂贵。DEM技术具有加工周期短，价格低廉的优点，但其技术指标低于LIGA技术（加工厚度为200μm，深宽比为20）。

The super slippy surface can be got after colored metal and non-metal is cut by single crystal diamond cutter. Following, it can take the place of super precision grinding, the efficiency can be increased, and the precision can be guaranteed.

使用精密的单晶金刚石刀具加工有色金属和非金属，能够直接切出超光滑的加工表面，这样就可以取代超精密磨削等精加工工序，极大的提高加工效率，同时也可以保证加工精度和加工表面质量。

This paper introduces the software structure and real time process principle of real time NC system, according to the milling process character of NC system and the geometrical modeling method of computer simulation, presents a technique of subdividing roughcasts and data structures which applies to the computer simulation of the NC milling process; and in order to quicken the operating rate and enhance the reality of computer simulation, puts forward a logic algorithm of the 3D milling process of real time NC system which can display the effects of the computer simulation of 3D milling process of real time NC system dynamicly and efficiently in PC, such as the movement of tools, the elimination of materials, the shape changing of roughcasts.

刘景能，蒙艳玫（广西大学，530004）摘要：本文介绍了实时数控系统软件结构与实时工作原理，根据数控系统铣削加工的特点和计算机仿真几何建模方法，给出了适用于数控铣削加工仿真的毛坯离散细分方法和数据结构；为了加快处理速度和增强仿真效果真实感，提出了一种实时数控系统三维加工仿真的逻辑设计算法，即在单CPU机器单线程程序中使用普通软件循环和定时器模拟实现多线程，该算法可以在微机上动态显示高质量的铣削加工过程刀具的运动，材料的去除和毛坯形状的变化等数控加工三维仿真效果。

The rapid back_and_forth grinding method was adopted in the precision machining of the curve point of the blanking punch, and the processing efficiency was effectively enhanced.

介绍了IC芯片管脚簧片精密冲裁加工中冲裁凸模的加工现状及存在的问题，在冲裁凸模曲线刃口的精加工中引入快速往复磨削加工方法可以有效提高加工效率，还分析了快速往复磨削加工的特征。

Combined with new tendency and practice in internal combustion engine industry at home and abroad in recent years,this paper suggests that machining cone of intake and exhaust valve seat insert and guide tube hole is the key technique in machining complicated cylider-head.

结合近年来国内外内燃机行业发展的新趋势和工作实践，对结构复杂的气缸盖机械加工提出了进、排气门座圈锥面与导管孔的加工是其工艺技术关键，从定位方式、基准选择、气门座底孔与导管孔底孔的加工，气门座圈锥面加工方式和导管孔的加工方式等方面进行了探讨和分析。

It identifies "worse condition points" along the path according to the curve information, machine tools capability and machining requirement. Integrated with adaptive interpolation, segmented high speed machining is adopted. Different constant speed segments and speed transition segments are obtained according to the feed motion constraint model, and the corresponding feed information are stored in a penta-element lookup chain table. By referring to the lookup table, the interpolator can automatically determine the feed motion.

算法根据加工路径的曲线信息、机床加工能力及加工要求确定&最差状态点&，并结合自适应插补思想，采用分段高速加工，根据进给约束模型得到不同恒定速度加工段及速度过渡段，并将这些信息存储在一个五元的自适应Lookup链表中，插补过程中通过查找该链表确定进给参数。

Based on analyzing performance of gear machining system and mechanism of machining error, the description method of machining error was presented for gear machine. According to the performance-driven design concept and generalized multi-body certainty theory, driven by gear machining error, machining error fine model and system integrated design method of CNC gear shaper was studied.

本文在分析齿轮加工机床的系统性能和加工误差产生机理的基础上，提出了加工误差描述方法；以&性能驱动设计&为基本理念，以齿轮加工误差为驱动，以广义确定性多体系统为理论基础，研究了数控插齿机加工误差精细分析和系统集成设计方法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失