本文關(guān)鍵詞：壓電式噴射三維打印成型系統(tǒng)開(kāi)發(fā)與實(shí)驗(yàn)研究　出處：《華中科技大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 三維打印 壓電式 噴射技術(shù) 成型材料 工藝參數(shù)

【摘要】：快速成型技術(shù)具有加工周期短，成本低，應(yīng)用范圍廣等優(yōu)點(diǎn)，能夠適應(yīng)現(xiàn)代產(chǎn)品更新?lián)Q代速度快對(duì)設(shè)計(jì)和制造的要求。三維打印技術(shù)是目前快速成型行業(yè)最有生命力的技術(shù)之一�，F(xiàn)有的三維打印成型系統(tǒng)一般采用熱氣泡式噴射技術(shù)，即依靠加熱溶液產(chǎn)生氣泡來(lái)生成微滴，這種方式會(huì)對(duì)噴射溶液的性質(zhì)帶來(lái)影響，特別是生物、醫(yī)藥等新興材料。目前，，三維打印成型系統(tǒng)一般價(jià)位較高，成型材料價(jià)格不菲。因此，展開(kāi)對(duì)三維打印成型的理論研究，開(kāi)發(fā)出一套對(duì)所噴射材料無(wú)熱影響、成型材料成本低的三維打印成型系統(tǒng)具有重大的現(xiàn)實(shí)意義。 本文分析了三維打印成型的工作過(guò)程，對(duì)比了各種噴射技術(shù)的特點(diǎn)，研究了溶液的噴射性能，分析了液滴對(duì)粉末表面的沖擊、潤(rùn)濕和滲透的機(jī)理，為三維打印成型系統(tǒng)的開(kāi)發(fā)、成型用粉末材料和溶液的配制、成型工藝的設(shè)計(jì)提供了理論依據(jù)。 針對(duì)開(kāi)發(fā)能夠噴射熱敏感溶液、成本低廉的三維打印成型系統(tǒng)的目標(biāo)，本文將壓電式噴墨打印機(jī)改造為適用于三維打印成型系統(tǒng)的噴射系統(tǒng)，并開(kāi)發(fā)了模塊化設(shè)計(jì)的機(jī)械系統(tǒng)，設(shè)計(jì)了三維打印成型系統(tǒng)的工作流程并開(kāi)發(fā)了控制軟件及硬件。 在研究原壓電式噴墨打印機(jī)所噴射墨水的物化性能的基礎(chǔ)上，配制出與原墨水性能接近的噴射溶液。研究了粉末材料的形狀、粒度、成分及含量等因素對(duì)三維打印成型的影響，配制出了用于制造模型的粉末材料配方。分析了成型工藝參數(shù)對(duì)成型性能和質(zhì)量的影響，主要包括鋪粉參數(shù)、打印層厚、切片方向、每層打印時(shí)間、成型溫度等工藝參數(shù)。通過(guò)實(shí)驗(yàn)分析了三維打印成型試驗(yàn)中經(jīng)常出現(xiàn)的制件缺陷及產(chǎn)生的原因，并提出相應(yīng)的解決方案或者改進(jìn)措施。 通過(guò)實(shí)驗(yàn)，所開(kāi)發(fā)的快速成型系統(tǒng)可制作出各種通用模型和具有復(fù)雜曲面的模型，如可嚙合的齒輪組、螺旋槳模型等。制作的外殼模型包含直徑0.5mm的小孔，厚度0.8mm的薄壁等細(xì)微結(jié)構(gòu)的模型。開(kāi)發(fā)的系統(tǒng)成型誤差在±0.2mm以內(nèi)，打印速度可以達(dá)到40-80s/層。
[Abstract]:Rapid prototyping has the advantages of short processing cycle, low cost and wide application. The 3D printing technology is one of the most vital technologies in the rapid prototyping industry. The existing 3D printing system generally adopts the hot bubble type. Jet technology. That is to say, the formation of micro-droplets by heating solution to generate bubbles, this way will have an impact on the properties of the spray solution, especially biological, pharmaceutical and other emerging materials. At present, three-dimensional printing molding system is generally expensive. Therefore, it is of great practical significance to develop a three-dimensional printing molding system with no thermal effect on the sprayed material and low cost of the material. In this paper, the working process of 3D printing molding is analyzed, the characteristics of various spray technologies are compared, the spray performance of solution is studied, and the mechanism of impact, wetting and permeation of droplets on the powder surface is analyzed. It provides a theoretical basis for the development of 3D printing system, the preparation of powder materials and solution for molding, and the design of molding process. Aiming at the goal of developing a three dimensional printing system which can spray heat sensitive solution and low cost, this paper transforms the piezoelectric inkjet printer into a jet system suitable for the three dimensional printing and forming system. A modular mechanical system is developed, the workflow of 3D printing and forming system is designed, and the control software and hardware are developed. On the basis of studying the physical and chemical properties of the sprayed ink from the original piezoelectric inkjet printer, the spray solution which is close to the original ink performance is prepared. The shape and particle size of the powder material are studied. The effect of composition and content on the 3D printing molding was studied. The powder material formula for manufacturing model was prepared, and the influence of molding process parameters on the molding performance and quality was analyzed, including the powder laying parameters. Printing layer thickness, slice direction, printing time of each layer, molding temperature and other technological parameters. And put forward the corresponding solution or improvement measures. Through experiments, the developed rapid prototyping system can produce a variety of general models and models with complex surfaces, such as meshing gear sets. The shell model consists of a small hole with a diameter of 0.5 mm and a thin wall with a thickness of 0.8 mm. The system forming error of the developed system is within 鹵0.2 mm. Printing speed can reach 40-80 s / layer.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH164

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 史玉升;魯中良;章文獻(xiàn);黃樹(shù)槐;陳國(guó)清;;選擇性激光熔化快速成形技術(shù)與裝備[J];中國(guó)表面工程;2006年S1期

2 王運(yùn)贛，陳國(guó)清，駱際煥，林國(guó)材;快速成形技術(shù)及其系統(tǒng)的研究[J];鍛壓技術(shù);1996年03期

3 錢海燕,葉旭初,張少明;重質(zhì)碳酸鈣表面改性研究[J];非金屬礦;2001年04期

4 朱利松,葉春生,黃樹(shù)槐;FDM快速成形系統(tǒng)的控制系統(tǒng)研究[J];機(jī)床與液壓;2005年01期

5 陳光霞;曾曉雁;王澤敏;關(guān)凱;彭昌吻;;選擇性激光熔化快速成型工藝研究[J];機(jī)床與液壓;2010年01期

6 呂海寧;;噴墨打印墨水組成成分的性能研究狀況[J];江蘇化工;2006年24期

7 賈吉林;張昌明;;基于RP的快速模具制造技術(shù)的應(yīng)用研究[J];機(jī)械設(shè)計(jì)與制造;2009年09期

8 勞奇成,盧秉恒;三維打印機(jī)噴頭的驅(qū)動(dòng)系統(tǒng)[J];機(jī)械工程師;2003年10期

9 伍詠暉;;彩色三維打印成形技術(shù)及應(yīng)用[J];機(jī)械工程師;2007年02期

10 劉厚才;莫健華;劉海濤;;三維打印快速成形技術(shù)及其應(yīng)用[J];機(jī)械科學(xué)與技術(shù);2008年09期

相關(guān)博士學(xué)位論文 前1條

1 謝丹;微光學(xué)器件的氣動(dòng)膜片式微滴噴射制造技術(shù)研究[D];華中科技大學(xué);2010年

相關(guān)碩士學(xué)位論文 前1條

1 李一歡;三維打印快速成型機(jī)理與工藝研究[D];西安科技大學(xué);2008年

本文編號(hào)：1358831