A laminated model of cutting face for evaluating cutting quality has been built up on the basis of cutting experiments. The experimental results and the theoretical analysis of the model show that, the lower part of the cutting face, adjacent to the bottom edge, has the worst cutting quality due to its worst roughness.

在工藝實驗的基礎(chǔ)上，建立了切割面分層理論模型国产福利在线免费，實驗研究和模型分析表明：切割面近下緣處是切割質(zhì)量的最薄弱環(huán)節(jié)青草视频在线观看免费视频公开，此處粗糙度最高，切割前沿在下緣處的溫度是決定下緣質(zhì)量的主要因素美女裸体黄污18禁网站。

Function that the cutting blowpipe raises automatically following the uneven steel plate when cutting, ensure that the distance between cutting blowpipe and the steel plate are consistent when cutting, thereby guarantee cutting mass.

具有切割時割炬隨鋼板高低不平而自動調(diào)高的功能在线激情视频图，保證切割時割炬與鋼板的距離一致，從而保證了切割質(zhì)量色羞羞在线视频。

Wood cutting can be divided into cont inous cutting,high frequency cutting disjointedly and low frequency cu tting disjointedly according to length of a continous cutting time and proportion of cutting time to all time.

根據(jù)一次連續(xù)切削延續(xù)時間的長短及切削時間占總時間的比例国产破处女出血视频，可將木材切削分為連續(xù)切削、高頻率斷續(xù)切削和低頻率斷續(xù)切削亚洲插下面视频。

Zeng Haisheng told 10-year-old mother to learn paper-cutting, and later he became the teacher of paper-cutting culture has some thinking, and thinking themselves into the traditional paper-cutting, the use of euphony, symbolic, metaphor and other means to show their the pursuit of a better life and hope, thereby increasing the aesthetic value of paper-cutting works, the beginning of the traditional paper-cutting innovation.

曾海生十來歲就跟母親學(xué)剪紙久久福利网站一区，后來他當(dāng)了老師，對剪紙有了一些文化的思考欧美性爱88，并將自己的思考融入傳統(tǒng)的剪紙中国产亚洲第3页，用諧音、象征欧美丰满熟妇乱视频XXXXX、隱喻等手法表現(xiàn)出自己對美好生活的追求與企盼亚洲特黄毛片一级无码，從而提高了剪紙作品的審美價值，傳統(tǒng)剪紙開始了創(chuàng)新亚洲色资源站。5年前曾海生退休回到家国产交换精品视频一区，看到村里有不少父母外出務(wù)工的留守孩子，就把他們組織起來国产男女羞羞视频免费一区，把自己幾十年積累的剪紙技藝和盤托出999国产视频，教授弟子。

Trade and Long" brand series products include: automatic dual-precision four-post, unilateral hydraulic cutting machine, precision four-post Hydraulic Cutting Machine, Gantry Hydraulic Cutting Machine, Hydraulic Plane Cutting Machine, Rocker hydraulic cutting machine, such as the top ten series more than 60 varieties, the product best-selling domestic and international markets."

"貿(mào)隆"牌系列產(chǎn)品涵括：精密四柱式全自動雙日韩在线进入一区二区视频、單邊液壓裁斷機(jī)亚洲视频一区二区、精密四柱式液壓裁斷機(jī)、龍門式液壓裁斷機(jī)免费滴黄色网站、平面式液壓裁斷機(jī)在线黄色视频国产、搖臂式液壓裁斷機(jī)等十大系列六十多個品種，產(chǎn)品暢銷國內(nèi)樱花在线导航成人网站入口免费、國際兩大市場A片无卡不码国产在线。

The wood of China fir and Taiwan zelkova were used for cutting test. Cutting conditions of the tool were rake angle 35°, sharpness angle 29° and clearance angle 26°. Five depths of cut were laboratory fraise for metal cutting. The cutting force measurements, based on the cutting surface of the test material, were performed by a quartz piezoelectric three component dynamometer.

采用杉木與臺灣櫸之氣乾材為試驗材料，切削試驗以高速度鋼材質(zhì)之平刀進(jìn)行二次元縱切削(90-0)之平削試驗熟妇精品视频，切削條件中刀具斜度角為35°一级黄色录像视频免费看，刀端角為29°中国国产黄色真人网站，余隙角為26°，切削深度為0.05色哟哟免费网址入口、0.1999精品试频一区、0.2、0.3與0.5 mm8050午夜网国产一级，切削速度為1.1cm/s亚洲第八页。

Shaws idea that chip could be regard as a series of parallel orthogonal slices, a computing model of cutting force and cutting temperature based on orthogonal cutting simulation results is constructed in chapter 4, and a map is established between the three-dimensional cutting process and planar orthogonal cutting process.

第五章針對航空整體結(jié)構(gòu)件銑削加工變形這一復(fù)雜的制造難題，建立了三維銑削加工的彈塑性熱力耦合有限元模型爱爱视频网址大全外国，研究了材料模型伊人久久五月丁香综合中文亚洲、殘余應(yīng)力施加、刀具動態(tài)載荷黄色视屏品爱网、材料去除等銑削加工模擬所涉及的關(guān)鍵技術(shù)思思热视频在线精品视频。

Select high-quality die-cutting tool to be considered depending on the die-cutting materials of munltivariable and gaofeng and gaofeng coilia, short peaks can cut thin paper knife and cut thick paper, you can use the automatic single die-cutting, it may be used at the same time cutting two or three sheets of paper-a set of die-cutting, use a wide range.

選擇優(yōu)質(zhì)的模切刀時應(yīng)注意根據(jù)所模切材料的厚薄而選擇高峰刀及矮峰刀，高峰刀既可以切薄紙又可以切厚紙亚洲国产欧洲中文字幕，既可以用在單張的自動模切機(jī)上毛片一区免费，又可以用在同時模切二免费观看黄色的视频在线看、三張紙的手搖模切機(jī)上，使用范圍很廣。

A cutting insert for metalworking operations has an insert core with a pair of cutting portions having cutting tips extending therefrom such that a toolholder having a pocket to accept such a core is suitable to accept different cutting inserts having a common core plus different cutting portions.

一種用于金屬加工操作的切削刀片具有一刀片芯部200毛片，它帶有一對切削部分国产999精品视频网站，后者具有從其延伸的切削尖端美国黄片一级A片，以使具有接納芯部的凹座的刀夾適合于接納具有相同的芯部加上不同的切削部分的切削刀片亚洲熟妇天堂久久。

The cutting pattern and load curves of cutting process of the two cutting heads were given by computer simulation, which showed that the cutting performance of the cutting head with pick arrangement based on equal-rise-angle spiral line was good because of its reasonable pick cut, its uniform cutting pattern and the small value and the fluctuation of its load.

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