本文選題：三維打印 + 酚醛樹脂��； 參考：《大連理工大學(xué)》2015年碩士論文

【摘要】：近年來,三維打印技術(shù)以其獨特的優(yōu)勢在學(xué)術(shù)界、產(chǎn)業(yè)界掀起了一股三維打印熱潮。三維打印是根據(jù)所設(shè)計的三維模型,利用高分子塑料、光敏樹脂、金屬粉末、覆膜粉體等材料,通過逐層疊加材料來實現(xiàn)由二維圖形到三維模型的制造,集cAD、CAE、CAM等計算機技術(shù)于一體,具有快速性、高柔性、高效性等特點,特別適合于制造小批量的復(fù)雜結(jié)構(gòu)模型,其產(chǎn)品已在汽車制造、航空航天等領(lǐng)域有所應(yīng)用。本文結(jié)合數(shù)字化鑄造技術(shù),對三維打印用覆膜粉體材料進行研究。針對傳統(tǒng)鑄造用覆膜砂在3D打印時強度低的問題,首先設(shè)計合理的覆膜工藝,之后通過擴大原砂粒度配級及加入偶聯(lián)劑的方法增強型砂強度,探究覆膜砂固化過程中各參數(shù)對其強度的影響,用PIRP方法打印鑄造用鑄型。為解決復(fù)雜冷鐵制作周期長、難于制作的問題,研發(fā)可用于三維打印并可在鑄造生產(chǎn)中發(fā)揮激冷作用的覆膜鐵粉,通過實驗探究覆膜工藝,確定各個物料加入的比例及混砂時間,通過保溫爐加熱、實際澆鑄、數(shù)值模擬的手段驗證其激冷作用。最后,為配合三維打印在文化創(chuàng)意中的應(yīng)用,研發(fā)可制作三維打印原型件的輕質(zhì)覆膜材料,通過實驗確定各個物料的配制比例,探究合理的覆膜方法和后處理的工藝參數(shù)。
[Abstract]:In recent years, 3D printing technology with its unique advantages in academia, industry has set off a wave of 3D printing boom. Three-dimensional printing is based on the design of three-dimensional model, using polymer plastics, Guang Min resin, metal powder, coated powder and other materials, through layer by layer superposition material to achieve two-dimensional graphics to three-dimensional model manufacturing. With the advantages of fast speed, high flexibility, high efficiency and so on, it is especially suitable for manufacturing complex structural models in small batches. Its products have been applied in automobile manufacturing, aerospace and other fields. In this paper, film-coated powder materials for three-dimensional printing were studied by digital casting technology. In order to solve the problem of low strength of traditional coated sand in 3D printing, a reasonable coating process was designed, and then the strength of sand was enhanced by expanding the gradation of original sand grain and adding coupling agent. To explore the influence of various parameters on the strength of coated sand during solidification, the casting mould was printed by PIRP method. In order to solve the problem that complex cold iron has long production cycle and is difficult to be made, a coated iron powder which can be used in 3D printing and can play a chilling role in casting production has been developed, and the film coating technology has been explored through experiments. The proportion and mixing time of each material are determined, and the cooling effect is verified by means of heat preservation furnace, actual casting and numerical simulation. Finally, in order to cooperate with the application of 3D printing in culture and creativity, the light laminating materials which can make 3D printing prototypes are developed. The preparation ratio of each material is determined through experiments, and the reasonable coating method and post-processing technological parameters are explored.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB383.3;TN249

【參考文獻】

相關(guān)期刊論文 前3條

1 侯宇慧;申向東;;閉孔珍珠巖對水泥土力學(xué)性能影響[J];公路;2012年12期

2 錢凡;李紅霞;李哲;馬渭奎;楊文剛;劉國齊;;粉煤灰漂珠連鑄水口保溫層試驗研究[J];非金屬礦;2015年02期

3 陳少南;楊國棟;楊占峰;朱世根;;熱塑性酚醛樹脂覆膜砂的研究進展[J];熱加工工藝;2008年23期

，

本文編號：2070355