The draw ratio is the direct relationship between the draw punch and the blank edge—the greater the distance between the draw punch and the blank edge, the greater the resistance to flow, primarily because of the additional surface area of sheet metal clamped between the die face and the blank holder.

拉伸率直接體現(xiàn)在拉伸沖頭和展開平板邊緣之間的關(guān)系---拉伸沖頭和展開平板邊緣之間的距離越大，限制流動的阻力越大国产黄片,A片，主要是因?yàn)樵趬哼吶湍＞弑砻骈g有額外金屬板表面被夾緊www.干干色。試著用不同尺寸和外形的展開平板進(jìn)行實(shí)驗(yàn)。

Be established in 1998, our factory is near by the high-new technical development estate, Jiangmen city, Guangdong province. Our factory is engage in a hardware punch products, mainly produce hydraulic drawing press , pipe bender, punch, lathe, milling and drilling machine, spot welding machine.

本廠創(chuàng)建于1998年欧美AA欧美A，位于廣東省江門市高新技術(shù)開發(fā)區(qū)附近免费一级日本大片，是一間以五金沖壓制造為主的專業(yè)性廠家，主要生產(chǎn)設(shè)備有拉伸液壓機(jī)一级a片啊啊啊、彎管機(jī)、沖床、車床国产激情av在线、鉆銑床在线黄片免费观看、點(diǎn)焊機(jī)等加工設(shè)備，能夠滿足生產(chǎn)各類型產(chǎn)品的需要美女下部隐私扒开视频无遮挡。

Because of the unique fitting mode of hydraulic drawing, early wrinkles of conical parts (very likely to wrinkle in ordinary deep drawing) fit orderly to punch under the action of counter pressure as the punch moves down ward, thus wrinkle-free parts can be obtained.

由于充液拉深方法獨(dú)特的貼模方式久草视频在线一区二区三区，使普通拉深方法極易起皺的錐形件成形初期產(chǎn)生的皺隨著凸模向下運(yùn)動在對向液壓的作用下順次貼向凸模，從而可以得到無皺的零件玖玖色在线免费视频。

When an elastic substrate in half-plane was subject to indentations by a rigid, flat-ended punch, a singular stress field and K-dominant region should arise adjacent to the punch edges. When the intensification of such singular stress fields reaches its critical value, fracture will take place on the surface of the contact boundary.

由于周期陣列剛性壓頭壓在半平面彈性體的表面時(shí)8x8ⅹcom永久免费视频，會產(chǎn)生周期的Ⅰ型奇異壓應(yīng)力場，該奇異應(yīng)力場的應(yīng)力集中達(dá)到一定程度時(shí)色色综合电影网站，即達(dá)到臨界條件時(shí)久久婷婷国产麻豆91天堂，該奇異應(yīng)力場所在的邊界將開裂。

This paper, firstly, based on the main technology characters in the punch forming of our lorry, puts forward a question on the bottleneck of key technology during the punch forming of medium plate.

本文首先敘述我國鐵路貨車沖壓成形的主要技術(shù)特點(diǎn)国产精品黄片在线播放，指出了中厚板沖壓成形關(guān)鍵技術(shù)所存在的瓶頸問題亚洲福利日韩看片无码。

Furthermore, the forming die can realize single punch extrusion according to different die carriers and equipment, double punch extrusion in opposite directions, as well as the extrusion of the helical cylindrical gear with big helix angle.

本發(fā)明結(jié)構(gòu)簡單，易于制造久操手机在线网站播放、安裝一级做a爱全免费视频在线，可根據(jù)不同模架和設(shè)備實(shí)現(xiàn)單個(gè)沖頭擠壓，也可實(shí)現(xiàn)兩個(gè)沖頭對向擠壓亚洲a毛网站；可以實(shí)現(xiàn)大螺旋角齒輪的擠壓91在线精品国自产拍；成形力小，下料精度要求低黄色精品视频在线观看。

Main processing workpieces for: plastic mold connector (FPC, USB, FFC, PPC, SATA, etc.) on the use of various high-precision needle PIN, Inserts and hardware module on the use of tungsten steel punch, forming punch (the Quartet, hexagonal, ellipsoid, etc.).

主要加工工件為：連接器塑膠模(FPC在线观看黄色视频一站、USB、FFC欧美熟妇性爱A片在线A片视频、PPC日本男人插女人、SATA等)上使用的各種高精密PIN針、鑲件和五金模上使用的鎢鋼沖頭毛茸茸婊子、成型沖頭清清草影院欧美日韩。

Fidelity Precision tungsten steel main products: tungsten steel punch, tungsten steel liner sets, forming punch, flat thimble, precision rod, tungsten steel book strip, inserts, tungsten carbide drawing die, shrink tube mold, Jian Kou mold, fire nozzle, tungsten steel knife, tungsten steel blank, tungsten steel box, and other precision parts.

富達(dá)精密鎢鋼主要產(chǎn)品：鎢鋼沖頭、鎢鋼襯套欧美黄色性交一级大屏、成型沖頭欧美在线视频播放、扁頂針、精密圓棒呦呦网址、鎢鋼簿長條美女黄色被插视频、鑲件、鎢鋼拉深模91黄色大片、縮管模男插女黄色视频在线观看网址、剪口模91AⅤ看片、射咀、鎢鋼刀人人操人人艹人人射、鎢鋼毛坯日本视频一区在线观看、鎢鋼方塊等精密配件。

Ninghai County-Machine Tools Co., Ltd will be located in the East China Sea coast, at Ninghai County of Ningbo City bridge-zone and strategic location, convenient traffic, the company founded in 1992, over the years by the unremitting efforts of all staff, has now become a professional Production vehicles, motorcycles, the shock absorber system tools, metal stamping parts enterprise products, the company covers an area of 8,600 square meters and annual production capacity of 50 million yuan, with 16 million yuan in fixed assets, the company has modern factories and advanced standard equipment: 315 Tons of hydraulic presses and machine, punch 200 tons, 125 tons more than a punch, such as Taiwan, 63 tons and 40 tons of press, and so on more than 30 Taiwan, Taiwan more than 10 milling machines, automatic tapping machine and manually tapping machine more than 10 Taiwan, automatic drilling And manual drill more than 10 Taiwan, CA6140 lathes, grinders, radial drilling machine, CO2 gas protection welder, spot welding, and so more than 10 Taiwan, more than 60 meters lathe Taiwan, the company focus on new product technology development, equipment updates.

寧壕坊粕獳片在线观看？h必強(qiáng)機(jī)械工具有限公司地處東海之濱女孩小穴自慰网站，位于寧波市寧海縣橋頭胡開發(fā)區(qū)內(nèi)国产一级特黄A片A视频，地理位置優(yōu)越免費一級毛片，交通便捷，公司創(chuàng)建于1992年国产亚洲精品AAAA片在线播放，多年來經(jīng)全體員工不懈努力亚洲精品黄色网站视频在线观看，現(xiàn)已成為一家專業(yè)生產(chǎn)汽車，摩托車99热，減震器系統(tǒng)工具一级牧交视频播放在线观看，金屬制品沖壓件企業(yè)，公司占地面積8600平方米国产欧美日韩精品第一区，年生產(chǎn)能力5000萬元黄色电影久久久，擁有固定資產(chǎn)1600萬元，公司擁有現(xiàn)代化標(biāo)準(zhǔn)廠房和先進(jìn)設(shè)備黄片一级在线观看视频免费，：315噸沖床及液壓機(jī)一级黄片久久99，200噸沖床，125噸沖床等十余臺性爱在线欧美，63噸及40噸沖床等三十余臺最新地址91，銑床十余臺，自動攻絲機(jī)及手動攻絲機(jī)十余臺欧美A片最新网址，自動鉆床及手動鉆床十余臺久久911，CA6140車床，磨床搜锁一个能看的毛片网站，搖臂鉆床久玖玖视频在线播放，CO2氣體保護(hù)焊機(jī)，點(diǎn)焊機(jī)等十余臺黄网站在线观看视频免费，儀表車床六十余臺中国野外性农村xXxXHD，公司注重新產(chǎn)品技術(shù)的開發(fā)，設(shè)備的更新久久国产精品激情视频。

Ningbo World-metal stamping machinery is Taiwan's veteran peripheral manufacturers, professional manufacture and sale of peripheral automation punch line equipment, including air Tape feeder, high-speed roller Tape feeder, electronic control Tape feeder plane, terminal or feeder, NC Wheel Tape feeder, rack Correction of the machine, precision-corrected, microcomputer dead-detection, Die security detection devices, photoelectric Guarding hand, high-speed punch at NC computer speakers and precision, such as whole-Tape feeder.

寧波世慶五金機(jī)械是臺灣老牌沖壓周邊廠家日韩无码国产精品视频，專業(yè)制造與銷售沖床周邊自動化系列設(shè)備，包括空氣送料機(jī)国产精品不卡在线观看、高速滾輪送料機(jī)精品无码视频在线观看、平面電子控制送料機(jī)AV琪琪、端子收料機(jī)、NC滾輪送料機(jī)欧美性爱在线a片视频、料架兼矯正機(jī)黄色视网站免费网址、精密矯正機(jī)在线免费观看国产黄色A片高清、微電腦下死點(diǎn)檢出器久草中文av在线、模具安全檢出裝置、光電護(hù)手亚洲伊人成无码91、高速沖床隔音箱及NC電腦精密整平送料機(jī)等国产免费三级片视频。