本文選題：FDM + 3D打印��； 參考：《華北電力大學》2017年碩士論文

【摘要】：3D打印技術做為一項新興的制造技術,最近幾年發(fā)展迅猛,已經廣泛應用于制造業(yè)的各個領域。在不同技術的3D打印設備中,FDM(Fused Deposition Modeling,熔融沉積)工藝3D打印機一般具有構造簡單、設計簡潔、結構明了的特點,并且該種設備制造成本、維護成本和成型材料成本在各項技術中也是最低的。因此在目前市場中的桌面級3D打印機,該技術應用最為廣泛。目前市場中常見的桌面級FDM工藝3D打印機有Maker Bot公司的Thing-Matic、Replicator系列打印機、3Dsystems公司的Cube打印機及其衍生產品。目前市場中的FDM工藝3D打印機多為小型桌面化設備,成型尺寸較小。在打印尺寸較大的零件時,以往的方法往往是分段打印然后拼接,這樣強度明顯達不到要求。因此,研發(fā)較大成型尺寸的FDM工藝3D打印機且使其產業(yè)化、市場化將具有巨大的應用潛能和廣闊的市場前景。本課題旨在探索一種結構穩(wěn)定、控制簡單、可實現高速打印、成型空間達500×500×500mm的大尺寸FDM工藝3D打印機。本文研究內容主要有3D打印機的機械系統(tǒng)結構設計同時涉及控制電路搭建與調試、控制軟件的選擇,以及打印實驗驗證。首先,分析主流FDM工藝3D打印機的結構特點、技術原理、工藝過程、技術特點,比較各種結構的優(yōu)缺點,總結出完整的機械系統(tǒng)設計方案。利用三維建模軟件PROE對結構設計方案中的各主要零部件進行數字化設計和虛擬裝配,得到整機機械系統(tǒng)的三維裝配模型。然后,運用ANSYS Workbench有限元分析軟件,對機械系統(tǒng)中主要的承力部件進行有限元分析驗證結構的可行性。在所設計的機械系統(tǒng)結構基礎上,完成3D打印機控制電路的選型和搭建。對主控制板進行固件程序燒錄,實現主控制板對3D打印機各執(zhí)行模塊的控制。進行打印實驗,通過電路硬件調試與切片軟件參數設置,實現打印功能。本文具有一定的工程實際應用意義,對于FDM工藝3D打印機結構的設計和結構優(yōu)化有重要參考價值。
[Abstract]:As a new manufacturing technology, 3D printing technology has developed rapidly in recent years and has been widely used in various fields of manufacturing industry. In different technology 3D printing equipment, the 3D printer of FDM / Fused Deposition Modeling (fused deposition) process generally has the characteristics of simple structure, simple design and clear structure, and the cost of this kind of equipment. The cost of maintenance and molding materials are also the lowest in various technologies. Therefore, in the current market of desktop-class 3D printers, this technology is the most widely used. Among the most popular desktop FDM process 3D printers in the market are Maker Bot's Thing-Matic Replicator series, Cube printers and their derivatives. At present, the FDM process 3D printer in the market is mostly a small tabletop device, and the molding size is small. When printing larger parts, the previous methods are usually piecewise printing and splicing, so the strength is obviously not up to the requirement. Therefore, the development and industrialization of FDM process 3D printer with large molding size will have great application potential and broad market prospect. The purpose of this paper is to explore a large scale FDM process 3D printer with stable structure, simple control, high speed printing and forming space up to 500 脳 500 脳 500mm. The main contents of this paper are the design of 3D printer's mechanical system and the construction and debugging of control circuit, the choice of control software, and the verification of printing experiment. Firstly, the structural characteristics, technical principle, technological process and technical characteristics of the mainstream FDM process 3D printer are analyzed, and the advantages and disadvantages of various structures are compared, and the complete mechanical system design scheme is summarized. The 3D assembly model of the mechanical system of the whole machine is obtained by using the 3D modeling software PROE to carry out the digital design and virtual assembly of the main parts in the structural design scheme. Then, using ANSYS Workbench finite element analysis software, the feasibility of the structure is verified by the finite element analysis of the main load-bearing parts in the mechanical system. On the basis of the designed mechanical system, the control circuit of 3D printer is selected and built. The firmware program is burned on the main control board to realize the control of each execution module of 3D printer by the main control board. The printing experiment was carried out, and the printing function was realized by debugging the circuit hardware and setting the parameters of slicing software. This paper has certain engineering practical application significance, has the important reference value to the FDM process 3D printer structure design and the structure optimization.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP334.8

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