After investigating and analysing the model of dynamic resistance in the cutting area and its corresponding main components and affecting factors, the cutting depth, which is the main of the cutting factors to affect the dynamic resistance of cutting area, is determined by experiments.

本文在對(duì)導(dǎo)電加熱切削切削區(qū)動(dòng)態(tài)電阻組成的理論模型、主要結(jié)構(gòu)及影響因素進(jìn)行分析與研究的基礎(chǔ)上久久99精品久久久久久nb，通過實(shí)驗(yàn)研究操人人操人人爽爽爽操操操，確定了在切削用量的諸要素中影響切削區(qū)動(dòng)態(tài)電阻的主要因素国产主播第一页，即切削深度欧美爆乳激情A片。

To change the pick type, the cutting depth etc, so as to observe their influences on the deformation and destruction law of coal body; To adopt octagonal ring dynamometry made by ourselves and signals picking up system of multi-channel, low frequency and high-accuracy so as to monitor the cutting force in coal cutting course; To adopt the high-speed photography method, so as to shoot the cutting course and analyze the law of shaping.

改變截齒類型亚洲色图偷窥、截割深度等，觀察對(duì)煤體變形破壞的影響午夜电影网址；采用自制的八角環(huán)測(cè)力儀和多通道低頻高精度信號(hào)拾取系統(tǒng)對(duì)截齒截割煤體過程中的截割力進(jìn)行了在線監(jiān)測(cè)国产高清黄色；采用高速攝影的辦法拍攝截割過程，分析變形破壞的規(guī)律黄色日逼。

In the design of the de-huller, the lotus seeds were fed into the de-hulling channel in queue of the seeds with a certain heading orientation by using a screw expeller, and the de-hulling channel composed of two rotating supporting roller and a con-rotating cutting roller was established to realize the de-hulling of seeds. The integrated adjustment unit was designed for the adjustment of the main cutting parameters such as cutting force, cutting depth, two obliquities in horizontal and vertical plane so that the different variety and granularity of seeds were de-hulled.

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On the basis of establishing planar cutting model and cutting equation, through analyzing the rigidity of technical system infrequency chart, change cutting coefficient and the angle of cutter etc, emphasis measuring and analyzing hard turning 45 hardened steel the damaged layer of finished surface cutting force the roughness on finished surface and researching on the mechanism of wear and damage of cutter.

在分析二元切削模型和切削方程的基礎(chǔ)上，進(jìn)一步研究了切削變形及其影響機(jī)理高清狼友网；通過工藝系統(tǒng)剛性的頻譜分析，改變切削用量骚虎成人看片影院在线播放、刀具幾何參數(shù)等因素成都毛片，測(cè)量并分析研究了精切淬硬鋼的切削力、已加工表面粗糙度精品久9久久久久、加工硬化及表面殘余應(yīng)力及刀具的磨損情況黄页三级，基本形成了精加工45~#淬硬鋼的切削基礎(chǔ)理論。

Applied extensively to knitting horizontal machine, needle trough cutting, printed circuit board, V trough cutting, integrated circuit cutting, spectacle frame, hinge shaping, hardware processing, watchcase and watchband processing, and high-performance optic fibre cable cutting.

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System speaking of the Master CAM, first must establish the components the geometry model, according to the components actual size, draws its processing part the contour line, does not need to draw the entire components the model, guaranteed the computation production the cutting tool way coordinates accuracy, and may use the Master CAM Chinese Library level the function, when determination cutting tool way, transfers or the hideaway, the selective treatment needs contour line; Next, the formulation processing craft and the definite craft parameter, chooses the cutting tool, the processing semi finished materials, the work piece origin of coordinates again and so on, establishes the work piece coordinates system, definite work piece coordinate system and engine bed coordinate system relative size, thus obtains the components processing correct cutting tool way; Finally, the simulation function which system provides using the Master CAM, the realization simulation processing.

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The classical cutting stock algorithm——column generation technology , and wrap up rectangle technology for abnormity are analyzed ; The development of AutoCAD with ObjectARX is studied and the generating method of cutting outline drawing and layout drawing were found out on the basis of analyses of the graph database structure of AutoCAD and the basic operation of it ; The process planning technology of plate material cutting orienting numerical control is studied a process planning method directly based on layout drawing is established ; The emulation technology in AutoCAD is studied and a kind of dynamic emulation method is put forward , which is realized by incrementally modifying graph entity ; The postposition of NC program of the integrated cutting system constructed on software plug-in is proposed , which can effectively solve the problem that it is difficult for a numerical control programming system to be common , which is caused by the difference of instruction format and control parameter between different type of numerical control machine .

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On disc wood chipper, by changing the long blades to short blades and varying the once only cutting of cross section of log to cutting in different layers and strip by strip, thus the theoretical conception is correct to keep the cutting width unchangingly when cutting.

在切削過程中由于普通削片機(jī)是利用刀盤的長(zhǎng)刀對(duì)原木斷面進(jìn)行一次性切削国产呦交精品视频，其切削寬度是變化的，因此切削力與功率值均呈明顯的波浪形變化狼友首页一区二区三区，而且峰值很高人人看摸干。