查询词典 overcut

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验，运用工艺实验和理论分析相结合的方法，重点做了以下工作：(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因，并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理；(2)以混合硅粉的电火花加工为例，实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律，并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据；(3)在实际加工中，由于粉末的加入使放电间隙变大，这使得混粉电火花加工的尺寸精度难以控制，本文利用三元线性回归的方法，在实验数据的基础上，建立了两种电火花加工过切量的计算公式；(4)将正交试验法应用于混粉电火花加工实验研究，并通过对实验指标极差的直观分析，得出各电参数对加工指标影响的敏感程度。

He went on a tear and reached 123 but overcut the ball into the rail.

他又说，一撕，并达成了123 ，但overcut把球铁。

The dimensional accuracy of electrical discharge machining is greatly influenced by the overcut resulting from the discharge gap and electrode wear.

电火花加工工件的尺寸精度受过切量影响，而过切量的大小主要取决于放电间隙和电机损耗。

With the development of modern manufacturing, it arises track that cause overcut in the shortened tool radius compensation cases. Because more and more processing of data root in large volumes of data generated by CAM, and processing path is often constituted by a large number of small segments.

随着现代制造业的发展，越来越多的加工的数据来源于CAM生成的海量数据，加工路径往往是由大量的小线段构成，在缩短型刀具半径补偿情况下出现造成过切的刀位点。

It is one of the supreme ironies of Davis's career that he will be better remembered for that one disastrously overcut last black and some Taylor finger-wagging than for any of his many triumphs at the Crucible and elsewhere – but he has long since recognised the part that final had in shaping his character.

这是戴维斯职业生涯里最可笑的事情之一，没有哪个更能让他记住的那个灾难性的打薄了的黑球，以及和他在克鲁斯堡和其他排名赛里获得的冠军相比，泰勒挥舞着的那座奖杯。但是他很久以后认识到那场决赛已经成就了他性格里的一部分。

Before machining,the NC programs must be checked to examine whether thetrajectory is right or not , whether the tool will overcut or without cut.

在数控加工中随着工件复杂程度的增加，尤其是鞋楦这样的复杂曲面，其数控加工程序的正确性无法靠人工检查。

The main contents of the dissertation are as follows: Firstly, through the study of the theories about the C tool radius compensation, the dissertation put forward a new algorithm of C tool radius compensation for the effective reduction of overcut while NC-machining.

主要研究内容如下：首先，根据刀具半径补偿原理，实现了一种新型的C刀具半径补偿算法，该算法能有效剔除在缩短型刀具半径补偿情况下产生的冗余刀位点。

Feijen made another costly error in the seventh when he overcut a shot along the rail and the score moved to 4-3, in a match that looked like going all the way.

feijen所作的另一项代价高昂的错误，在第七时，他overcut的一个镜头铁路沿线和评分迁移到四月三日，在一个匹配看上去像去所有的方式。

Switzerland had a rare chance in the next as Immonen failed to sink a long-range 2-ball and overcut it but Tschudi could also not pocket the same ball and Juva eventually downed the 9-ball for the fourth successive rack for Finland.

瑞士有一个难得的机遇，在未来作为immonen未能击沉长程2球和overcut ，但tschudi也可以没有口袋，同时球和juva最终被击落9球，为连续第四个机架为芬兰。

Proposed the gas well drilling rock debris pellet collision causes the overcut, thus causes the well deviation viewpoint; And has analyzed the rock partical collision to the well circumferential stress influence, whether to determine the gas drilling jitter overcut to provide the computation basis.

提出了气体钻井岩屑颗粒碰撞导致井径扩大，从而引起井斜的观点；并分析了岩石颗粒碰撞对井周应力的影响，为判定气体钻井是否失稳和井径扩大从而引起井斜提供计算依据。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。