本文選題：旋轉(zhuǎn)擠壓 + 超細(xì)晶粒材料��； 參考：《南京理工大學(xué)》2017年碩士論文

【摘要】：旋轉(zhuǎn)擠壓工藝是一種新型的制備超細(xì)晶有色金屬材料的加工工藝。其制備過(guò)程簡(jiǎn)單易行且加工效果好,具有廣闊的工業(yè)化運(yùn)用前景。為了更好的推動(dòng)這種加工技術(shù)的發(fā)展,旋轉(zhuǎn)擠壓設(shè)備的研制就具有非常重要的意義。本套旋轉(zhuǎn)擠壓實(shí)驗(yàn)設(shè)備采用典型的立式三梁四柱結(jié)構(gòu)。根據(jù)研究的需要,確定制備材料的尺寸。分別采用上限法和有限元法得出擠壓過(guò)程的公稱(chēng)壓力和扭矩以及純銅材料的變形情況,并用實(shí)驗(yàn)驗(yàn)證數(shù)據(jù)的正確性。根據(jù)模擬數(shù)據(jù)以及設(shè)計(jì)需求,確定旋轉(zhuǎn)擠壓設(shè)備的設(shè)計(jì)參數(shù)和整體結(jié)構(gòu)形式。選取合適的電機(jī)后完成擠壓設(shè)備整體外形的設(shè)計(jì)。之后根據(jù)模擬得到的擠壓參數(shù)設(shè)計(jì)擠壓模具及其主要零部件。并用有限元軟件校核模具的強(qiáng)度和剛度,確定本套模具可以完成預(yù)期的擠壓要求。對(duì)設(shè)備的關(guān)鍵部件進(jìn)行結(jié)構(gòu)設(shè)計(jì)。先依據(jù)傳統(tǒng)力學(xué)的方法初步對(duì)設(shè)備關(guān)鍵部件進(jìn)行強(qiáng)度和剛度校核。再進(jìn)行有限元分析,驗(yàn)證設(shè)計(jì)和理論計(jì)算的正確性。分析結(jié)果表明機(jī)身和設(shè)備主要零部件均有較好的剛度,能很好的滿(mǎn)足設(shè)計(jì)要求。隨后進(jìn)行液壓系統(tǒng)設(shè)計(jì)。先進(jìn)行系統(tǒng)的工況分析,得出負(fù)載和速度曲線(xiàn),確定液壓系統(tǒng)的壓力、流量和電機(jī)型號(hào)等關(guān)鍵參數(shù)。確定系統(tǒng)的設(shè)計(jì)方案得出液壓系統(tǒng)原理圖。之后計(jì)算和選取液壓泵、閥類(lèi)元件、油管、油箱等,完成液壓系統(tǒng)設(shè)計(jì)。在工廠對(duì)設(shè)備進(jìn)行制造調(diào)試,設(shè)備最終可以順利完成預(yù)期的設(shè)計(jì)要求。
[Abstract]:Rotary extrusion is a new process for preparing superfine-grained non-ferrous metals. The preparation process is simple and has good processing effect, and has a broad prospect of industrial application. In order to better promote the development of this processing technology, the development of rotary extrusion equipment is of great significance. A typical vertical three-beam four-column structure is used in the rotating extrusion experiment equipment. According to the needs of the research, the size of the prepared materials is determined. The nominal pressure and torque of extrusion process and the deformation of pure copper material were obtained by the upper bound method and the finite element method respectively, and the correctness of the data was verified by experiments. According to the simulation data and design requirements, the design parameters and overall structure of rotary extrusion equipment are determined. Select the appropriate motor to complete the extrusion equipment overall shape design. Then the extrusion die and its main parts are designed according to the extrusion parameters obtained by simulation. The strength and stiffness of the die are checked by finite element software, and the expected extrusion requirement is determined. Carry on the structure design to the key parts of the equipment. According to the traditional mechanics method, the strength and stiffness of the key parts of the equipment are checked. Then the finite element analysis is carried out to verify the correctness of the design and theoretical calculation. The results show that the main parts of the fuselage and equipment have better stiffness and can meet the design requirements. Then the hydraulic system is designed. The load and speed curves are obtained to determine the key parameters of hydraulic system, such as pressure, flow rate, motor type and so on. The schematic diagram of hydraulic system is obtained by determining the design scheme of the system. The hydraulic system is designed by calculating and selecting hydraulic pump, valve, tubing, oil tank and so on. Commissioning the equipment in the factory, the equipment can successfully complete the expected design requirements.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TG375

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 D.FULORIA;S.GOEL;R.JAYAGANTHAN;D.SRIVASTAVA;G.K.DEY;N.SAIBABA;;低溫多向鍛造鋯-4合金的力學(xué)性能和超細(xì)晶組織演化（英文）[J];Transactions of Nonferrous Metals Society of China;2015年07期

2 卜勻;王會(huì)剛;劉曉雯;;基于有限元分析的2MN四柱液壓機(jī)液壓缸設(shè)計(jì)[J];機(jī)床與液壓;2014年16期

3 閆占輝;陳志紅;;光杠自鎖三軸試驗(yàn)機(jī)液壓系統(tǒng)設(shè)計(jì)[J];機(jī)床與液壓;2014年02期

4 王欽明;余心宏;馬凌微;;三梁四柱型液壓機(jī)有限元模態(tài)分析及結(jié)構(gòu)改進(jìn)[J];重型機(jī)械;2014年01期

5 韓曉霞;;數(shù)控機(jī)床導(dǎo)軌精度對(duì)生產(chǎn)作業(yè)影響的綜合分析[J];華章;2013年26期

6 項(xiàng)允;;節(jié)能降耗液壓沖床改造[J];液壓氣動(dòng)與密封;2013年07期

7 謝東鋼;陳蘊(yùn)博;鄭文達(dá);韓炳濤;;現(xiàn)代擠壓裝備的發(fā)展[J];中國(guó)材料進(jìn)展;2013年05期

8 張會(huì);;等通道轉(zhuǎn)角擠壓改進(jìn)模具[J];機(jī)械管理開(kāi)發(fā);2013年02期

9 牟世娟;牟世霞;;等徑角擠壓法制備超細(xì)晶材料[J];中國(guó)高新技術(shù)企業(yè);2012年10期

10 李新凱;張治民;趙亞麗;;變形鎂合金的研究現(xiàn)狀及前景[J];熱加工工藝;2011年24期

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