剪切角

The effect of rake angle and cutting velocity on the shear strain imposed in the chips, microstructure and hardness of chips are highlighted in a variety of metals and alloys.

本文对比了不同的金属和合金在各种刀具前角和切削速度条件下，切屑上产生的剪应变、切屑的微结构及其硬度的变化规律。

General clue of this paper is simulating wood stress field change in initial cutting stage and working out weighted boundary condition of cutting tools first,and then based on which, finding out shear stress and maximal effective stress when wood cut-ted.Meanwhile,finite element comparative analysis is proceeded on distortion and stress field by changing tool orthogonal rake.

本课题的总体思路是通过大型有限元软件ANSYS来模拟切削初始阶段中木材的应力场变化，进而得出刀具受力的边界条件，依此为基础求出木材受切时的剪应力及最大等效应力，同时通过变化刀具前角分别对受切工件的变形及应力场进行有限元比较分析，从而确定刀具的优化前角；优化前角确定后，再通过对刀具进行强度校核确定后角优化值。

Our company has already invented a series of model in long-term development, Such as Electric capacity measuring machine, energize the life-span test machine with electric iron, roller brush automation of complete sets of equipment (the cut off chamfering machine, comber machine and the woollen cloth divides a machine), blank point of the machine,electric capacity characteristic test machine, and so on.

公司在长期的发展过程中，已推出一系列成熟滚筒刷成套设备机型，如：自动热熔刷胶通用机、滚筒刷分条机、全自动切管倒角梳毛一体机、切管倒角机、循环梳毛机、支架数控成型机、自动剪线机、电容检测机、电子成型编带机、跳线编带机、轴向编带机、电熨斗通电寿命测试机、家用小电器跌落实验机、磁性自动打磨叠料机、电力电容特性测试机等。

The main rock types are two mica quartz schist and plagioclase amphibole schist.

老湾金矿床赋矿围岩是经历过多次韧脆性剪切改造作用的中元古界龟山组变质岩系，主要岩石类型为二云石英片岩和斜长角闪片岩。

The rock gold deposits born in Pre-cambrian system stratum and performed as bed-bear ing quartz vein, shear-quartz vein, stringer vein. alteration host rocks and tectonic breccia etc. and embraced with many ascepts of common metallogenetic geology characteristics, not only have the obvious and close distributional relationship on tectonic zones, but also share possibly the same genetic mechanism.

研究表明，产于前寒武系地层中，以层间石英脉、剪切石英脉、石英细脉、蚀变围岩、构造角砾岩等多种型式产出的、具有很多共性成矿地质特征的岩金矿床，不仅具有明显密切的空间展布关系，而且更重要的是它们可能具有某种深刻的内在共性成因联系。

Angular displacement measurement based on lateral shearing interferometer using plane-parallel plate ［J］.

一种基于平板横向剪切干涉的角位移测量方法［J］。

In this paper, the variations of the shear strain imposed on the chips as well as on the microstructure and the hardness of chips under the condition of different tool rake angles and various cutting velocities are investigated for different metals and alloys.

文中比较了不同的金属和合金在各种刀具前角和切削速度下，切屑上产生的剪应变、切屑的微结构及硬度的变化规律。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。