下刀具

Nthe environmental products group, comprising elgin sweeper company,jeststream of houston, vactor manufacturing inc., guzzler manufacturing inc.and ravo b.v., manufactures and markets worldwide a full range of street and parking lot sweeping, high-performance water-blasting equipment, municipal sewer and catch basin cleaning vehicles, industrial vacuuming and refuse trucks.

联邦信号旗下有四大集团：环境产品集团、安全产品集团、工具集团以及消防产品集团，是生产安全产品、信号和通信设备、消防产品、扫路车、垃圾车、高性能冲洗设备、停车控制设备、碳化超硬切削刀具、精密冲压机和塑胶注模配件等的制造商和全球供应商。

With the increase of the cutting speed,the performance of the tool system varies greatly under the action of the centrifugal force.

随着切削速度的提高，刀具系统在离心力的作用下发生很大变化，直接影响工件的加工精度和表面粗糙度。

A theoretical model for calculating the cutting angle with different crystal planes, orientations and tool orthogonal rakes are described in this paper. It is built with the ultra-precision cutting model by the principle of the maximum specific energy of shear deformation and the mechanism of change of the shear modulus with...

本文利用剪切变形比能最大及单晶材料不同晶面晶向剪切弹性模量不同的原理，结合超精密切削模型，从理论上计算出不同晶面、不同晶向及不同刀具前角超精密切削条件下的剪切角，得到其在不同切削条件下的变化规律，并由此解释了切削加工中由KDP晶体各向异性所导致的工件表面粗糙度的各向异性。

Moreover, they are not suitable for gears manufactured by different cutting tools. Based on gear generation principle, a new method to establish accurate 3D solid model of cylindrical gear by mechanism function of Pro/E is proposed. Taking the manufacture of spur-gear with pre-grinding hob as an example, this method is introduced in details and the accurate 3D solid model is set up.

以范成法加工齿轮的原理为理论基础，介绍在Pro/E平台下利用其机构模块的"轨迹曲线"功能精确构建各种刀具加工出来的渐开线圆柱齿轮齿廓曲线的方法，并以磨前滚刀加工直齿圆柱齿轮为例，详细介绍该方法的使用步骤，构建其精确的三维实体模型。

Proceed from the principle of neural networks, the mechanism of mapping between input and output of neural networks was analyzed, and the BP algorithm for training the thresholds of neurons was derived. Based on the study to the distinguishability of input of networks, the effect of neural networks to distinguish-ability of characteristics was studied, and the optimizations of the structure of networks, learning rate, impulse factor, thresholds of neurons and initial weight of networks were completed. Through the experiments under fixed cutting regime and alternative cutting regime, the methods based on neural networks for tool wear monitoring were studied.

本文从神经网络的基本原理出发，研究了神经网络输入输出的映射机理，探讨了神经网络处理方法具有自适应性的原因；推导了神经元阈值学习BP算法；在研究网络输入特征可分性准则和特征敏感性准则的基础上，探讨了神经网络对特征可分性的作用；完成对网络结构参数、网络学习率和冲量因子、神经元阈值以及网络初始权值等参数的优化；并在固定切削用量和变切削用量条件下，对基于神经网络的刀具磨损检测方法进行了实验研究。

An artificial neural network model is developed to describe the relationship between the EDG grinding parameters and the surface roughness of diamond woodworking cutter .

建立了金刚石木工刀具电火花磨削工艺参数和表面粗糙度关系的人工神经网络模型，该模型对未知工艺条件下的预测结果最大误差为8.27%，具有较高的预测精度。

But the friction saw machine of shanghai baogang group is a ultra high-speed one, which is far and away over the one of the cutting-tool (hard alloy, quick-cutting steel and so on), and there is no report on this kind of saw technique at home and abroad.

目前，机械工业用于下料的摩擦锯机，其切削速度均很低。而上海宝钢集团公司的摩擦锯机是一种超高速锯机，其速度远远超过了切削刀具的切削速度，经查找，国内外均未有这类锯切技术的报道。

The problems of part drawing processing under characteristic input mode and cutting tool interference are studied. A practice example is given in this paper. It can produce the same result as that in FANUC 10T's SFAPT. It is efficient and prospective.

研究了特征输入模式下零件图的处理以及刀具干涉的处理，并给出了系统实际应用的示例，其结果和FANUC 10T的SFAPT处理的结果相同，具有理想的应用效果和良好的应用前景。

Under the sheet, if he was lucky enough to have one, average infantryman had the pockets of his combat jacket crammed with rations, shaving articles, pictures, cigarettes, candy, dry socks, writing paper and pens, and mess kit with spoon and fork.

床包裹下——如果运气好到能有条床单——步兵作战夹克口袋一般塞满配给口粮、刮胡刀具、像片、香烟、糖果、干净袜子、信纸钢笔，以及一套用餐勺叉。

When cutting tool roaled of spindle's hole by manipulator or other ways,the pull nail behind of knife hilts is sent to ahead of tension bar of spindle. When receives the clamps signal, the pressure oil is passed over the oil cylinder left cavity of the spindle rear part, the piston to the right migration ,tension bar also to right migration by small dish shape spring function, the stell ball of ahead circumference of the tension bar shrink the distribution diameter by spindle's cone hole's force, holds on the knife hilts and pull nail colsely.

当刀具由机械手或用其他方法装到主轴孔后，其刀柄后部的拉钉便被送到主轴内拉杆的前端，当接到夹紧信号时，将压力油通入主轴尾部的油缸左腔，活塞向右移动，拉杆在碟形弹簧的作用下也向右移动，其前端圆周上的钢球在主轴锥孔的逼迫下收缩分布直径，将刀柄拉钉紧紧拉住。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。