Self excited oscillation in turning process is a kind of unstable phenomenon resulting from former vibration trace. Eliminating of the phenomenon is a key technology in cutting process.
车削过程自激振荡是一种以残留振痕作为机械延时反馈造成的动态失稳现象,消除这一现象是机械加工过程中的技术关键之一。
When Blankfein settles into his chair in Washington, he's hoping what he says will mark the beginning of a long, slow process of turning that perception around.
当布莱克·费恩安置好他华盛顿的交椅,他希望他所说的将成为那个又长又慢的转变观点过程的开端。
"I've always been interested in turning the process inside out, exposing the plumbing so to speak, not covering up the walls," he says.
我一直喜欢把过程的内里显现出来,打个比方说,把水管暴露在外,抑或,不遮去墙壁原本的样子。
If Lebanon were to blow up again, Israel and Syria could well step in once more, turning the current Middle East peace process into a slide back towards war.
如果黎巴嫩内战再次爆发,以色列和叙利亚也很有可能再次介入,如此将导致目前的中东和平进程发生逆行,滑向另一场中东战争。
I think we've passed a turning point in our understanding of the aging process.
我认为我们在对老化过程的理解中通过了一个转折点。
Researchers have discovered new small molecules that may prevent prostate cancer cells from turning off normal genes in a process that transforms normal cells into cancer cells.
研究人员发现了新的小分子,这些小分子可能会在前列腺癌细胞将正常细胞转变为癌细胞过程中阻断癌细胞关闭正常基因的表达。
The paper brings forward a solution on the disposal of physical information and the visualization of calculation results in virtual turning process.
本文提出对虚拟车削加工中物理信息的处理及其结果可视化的方法。
The experimental results shown that the effects of cutting depth changing on machining accuracy is much little in the turn-milling process and turning process so we can neglect it generally.
通过对实验结果的分析显示,车铣加工和车削加工微细轴时切削深度的变化对加工精度的影响很小,一般情况下可以忽略。
It describes the turning process and tries to open the "black box" of knowledge in this paper, in order to indicate how the science knowledge has been made and justified in particular context.
本文在描述这一转换过程的同时试图打开知识的“黑箱”,以表明科学知识是如何在特定的情境中生成并得到辩护的。
Applying the concept of relative cutting velocity, the expression of velocity type dynamic cutting force and the mechanics model of chatter vibration in turning or boring process were advanced.
针对规避切削颤振问题,应用相对切削速度概念,提出了速度型动态切削力表达式以及车削或镗削的振动力学模型。
Exampled with the six turning joint robot, expatiating the key techniques in the system development process, giving parts of program code, and introducing the simulation software system's framework.
以六转动关节机器人为例,阐述了系统开发过程中的关键技术,给出了部分程序代码,并介绍了仿真软件系统的结构。
The theory of ground automatic convert method is detailed in the paper, is analyzed how to select capacity of thyristors and transformers, and analyzed process of turning off thyristors.
本文对这种新的地面自动过分相方案,进行详细的解释,对晶闸管和变压器容量的选择进行分析,对晶闸管关断过程进行详细的分析。
We basically tried to mimic the process when you are turning a maquette in your hand and looking for the best views.
我们主要是试图模仿“设计者构思草图寻求最佳的设计手段”这一过程。
In the traditional titanium alloy process turning efficiency is lower, this because both cutting speed and tool life are lower and process quality controlled is very difficult.
传统的钛合金车削加工因其切削速度低,刀具耐用度低,加工质量难于控制,导致加工效率低。
Finally, the possible emergency situations and related plans in the process of vertical turning were introduced.
讨论竖转过程中可能出现的突发情况及其相关预案。
Adopt the cell process method solve the problem of turning CAPP, it's simple and in point.
采用单元工艺法解决了机加工中的CAPP问题。
Still, the present PE teaching is in the critical period of turning from the Exam Education to the Skill Education. During this process, there exists many problems.
尽管如此,当前中学的体育教学仍然处在由应试教育向素质教育的转轨时期,在此过程中存在着许多问题。
The characteristics of stainless steel in the process of turning are analysed in this paper, and the methods of solutions are put forward.
分析了不锈钢材料车削加工的特点,并介绍了利用数控车床加工此类材料的一些关键问题,同时给出了相应的解决办法。
In two years she and I have carried out an important turning point in life, but this process was filled with difficult.
在这两年中她和我都进行了人生中重要的转折,而这个过程却是以巨大的磨难为代价呈现出来的。
The predictive control of cutting chatter at the center of turning process is mainly discussed in this paper.
讨论了车削加工中心切削颤振的预报控制方法。
Performance of the coated tool and non-coated tool in cutting process is analyzed through measuring durability of the indexable insert turning tool and cutting force (torsional moment) of tap.
介绍了涂层刀具与未涂层刀具在切削加工中的性能比较及试验研究。主要通过不重磨车刀的耐用度及丝锥的切削力(扭矩)等因素来展开试验分析。
This paper presents the process of modular turning using in our country, the design of cutter structure, the material selection of inserts and the practical application.
介绍了模块式车刀在国产化过程中刀具结构的确定,刀片材质的选择及其实际应用。
The results show that the metal soften is dominant in dry turning process, a good surface can be acquired in wet turning, and the cutting fluid takes an effective effect at the end of tool wear.
试验表明:干切削状态下金属软化效应占主导地位,湿切削可获得更好的表面粗糙度,切削液在刀具磨损后期开始发挥作用。
Page Turning Design is such an important step in the process of book designing.
翻阅设计,是书籍设计中重要的一个环节。
Taking high moisture-content domestic waste collected in a mixing way as object, influences of air-flow rate and turning on bio-drying process were studied by experimentation.
以高含水率混合收集生活垃圾为对象,试验研究了通风量和翻堆对其生物干化效果的影响。
Taking high moisture-content domestic waste collected in a mixing way as object, influences of air-flow rate and turning on bio-drying process were studied by experimentation.
以高含水率混合收集生活垃圾为对象,试验研究了通风量和翻堆对其生物干化效果的影响。
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