本文選題：FDM技術(shù) + 打印精度��； 參考：《中北大學(xué)》2017年碩士論文

【摘要】：為了解決傳統(tǒng)制造業(yè)生產(chǎn)研發(fā)周期長(zhǎng)、成本高以及難以成型復(fù)雜結(jié)構(gòu)零件的問(wèn)題,3D打印技術(shù)作為一種先進(jìn)的制造技術(shù)應(yīng)運(yùn)而生。FDM技術(shù)作為該技術(shù)發(fā)展比較成熟的六大技術(shù)之一,具有結(jié)構(gòu)簡(jiǎn)單、成本相對(duì)低廉、易普及、應(yīng)用前景廣泛等其他幾種技術(shù)不可比擬的優(yōu)勢(shì),因此發(fā)展FDM技術(shù)在設(shè)備、工藝方面的研究是必然要求。就目前發(fā)展情況而言,國(guó)內(nèi)在FDM設(shè)備方面受到國(guó)外在技術(shù)和價(jià)格上的壓制,整個(gè)設(shè)備的使用和維護(hù)成本較高,而且材料也受?chē)?guó)外的牽制,形勢(shì)峻迫。本課題從FDM型桌面型3D打印機(jī)的成本、便捷度、打印精度方面入手,自主研發(fā)低成本高效率高精度的升級(jí)版桌面型3D打印機(jī),為后續(xù)實(shí)現(xiàn)更加高效便捷的市場(chǎng)化奠定基礎(chǔ),以期在一定程度上彌補(bǔ)國(guó)內(nèi)FDM桌面型3D打印機(jī)的不足。通過(guò)比較國(guó)內(nèi)外常見(jiàn)的桌面型3D打印機(jī)的整機(jī)結(jié)構(gòu)、打印體積、三軸運(yùn)動(dòng)方式、打印精度以及噴頭加熱擠出設(shè)計(jì)方面的優(yōu)劣,在Prusa i3桌面型3D打印機(jī)的三軸運(yùn)動(dòng)結(jié)構(gòu)為基礎(chǔ)上加以改進(jìn),最終確定了Y軸和Z軸復(fù)合運(yùn)動(dòng)加X(jué)軸的獨(dú)立運(yùn)動(dòng)的設(shè)計(jì)方案�？刂葡到y(tǒng)的主控板在現(xiàn)有開(kāi)源的主控板的基礎(chǔ)上開(kāi)發(fā)出了一套性能更加穩(wěn)定的新主控板,同時(shí)對(duì)于切片軟件進(jìn)行分析及設(shè)計(jì),使整個(gè)3D打印機(jī)成為一個(gè)完整的體系。經(jīng)過(guò)打印機(jī)整裝調(diào)試,進(jìn)行了多次打印試驗(yàn)操作確保了設(shè)計(jì)的3D打印機(jī)能夠滿(mǎn)足設(shè)計(jì)時(shí)的結(jié)構(gòu)、穩(wěn)定性等多方面的要求,打印實(shí)踐證明桌面型3D打印機(jī)的整個(gè)研究設(shè)計(jì)是成功的。針對(duì)本題設(shè)計(jì)的桌面型3D打印機(jī),研究了層厚、傾斜角及打印取向?qū)Υ蛴〖叽缇鹊挠绊懸?guī)律,最后通過(guò)正交試驗(yàn)得出最佳工藝參數(shù)配置。
[Abstract]:In order to solve the problem of long production cycle, high cost and difficult forming of complex structure parts in traditional manufacturing industry, 3D printing technology, as an advanced manufacturing technology, emerges as the times require. FDM technology is one of the six mature technologies in the development of this technology. It has the advantages of simple structure, relatively low cost, easy popularization, wide application prospects and other incomparable advantages. Therefore, the development of FDM technology in equipment, process research is necessary. As far as the present situation is concerned, the domestic FDM equipment is suppressed by foreign technology and price, the cost of using and maintaining the whole equipment is high, and the material is restrained by foreign countries, so the situation is severe. This thesis starts with the cost, convenience and printing accuracy of FDM desktop 3D printer, and develops the upgrade desktop 3D printer with low cost, high efficiency and high precision independently, which lays the foundation for the further realization of more efficient and convenient marketization. In order to make up for the lack of domestic FDM desktop 3D printer to some extent. By comparing the whole machine structure, printing volume, triaxial motion mode, printing precision and the advantages and disadvantages of spray head heating extrusion design of desktop 3D printer at home and abroad, Based on the three-axis motion structure of Prusa i3 desktop 3D printer, the design scheme of Y axis and Z axis composite motion plus X axis independent motion is determined. The main control board of the control system has developed a new main control board with more stable performance based on the existing open source main control board. At the same time, the chip software is analyzed and designed to make the whole 3D printer a complete system. After the printer is assembled and debugged, many printing experiments are carried out to ensure that the designed 3D printer can meet the requirements of the design, such as structure, stability, etc. Printing practice proves that the whole research and design of desktop 3D printer is successful. Aiming at the desktop 3D printer designed in this paper, the effects of layer thickness, tilt angle and print orientation on the dimensional accuracy of printed parts are studied. Finally, the optimum configuration of process parameters is obtained by orthogonal test.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP334.8

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