3D打印牙种植体技术研究
发布时间：2018-11-09 10:56
【摘要】：3D打印技术改变了以往金属加工技术的理念,变减材制造为增材制造,这样不仅节省材料,还可以提高产品的精度。将3D打印技术应用于牙种植体的制造当中,可以根据患者的个性化要求进行生产,减少病人的牙槽骨损失量、缩短治疗周期、减轻病人无牙期间的不便。目前中国市场牙种植体主要依靠进口,价格昂贵、尺寸统一。我国牙齿缺失患者已经超过3亿人,可见中国牙种植体市场庞大,因此,实现3D打印牙种植体具有重要意义。为了探究3D打印牙种植体的可行性,本文研究了意大利和瑞士牙植体的生产工艺以及各项性能指标,为3D打印牙种植体力学性能提供依据,同时也为国产化牙种植体提供理论技术指导;其次利用3D打印技术打印了钛合金试件,并对试件的组织、硬度、强度和延伸率进行了测试,为实现3D打印牙种植体提供理论指导。本文的主要研究内容如下:(1)剖析两款进口牙种植体:确定其几何构造、成分、组织、硬度,研究其加工工艺。(2)采用粉末粒径15~45μm的Ti_6Al_4V粉末,进行3D打印,研究3D打印不同激光功率、扫描速度和铺粉厚度分别对试件的组织、硬度、强度和延伸率的影响。(3)研究退火工艺下不同温度对3D打印试件的组织、硬度和强度的影响。结果:在实验范围内,得到型号为LM120的3D打印机最佳工艺参数为激光功率400W、扫描速度100mm/s、铺粉厚度30μm;最佳退火工艺为750℃保温25min,空冷。其组织为网篮状,硬度428HV、抗压强度1455MPa。
[Abstract]:The 3D printing technology has changed the idea of metal processing technology in the past, and changed the material manufacturing into the increasing material manufacture, which not only saves the material, but also improves the precision of the product. The 3D printing technology can be used to produce dental implants according to the individual requirements of the patients, reduce the amount of alveolar bone loss, shorten the treatment period, and reduce the inconvenience of the patients during the toothless period. At present, dental implants in China mainly rely on imports, expensive, uniform size. There are more than 300 million patients with dental defects in China, which shows that the market of dental implants in China is huge, so it is of great significance to realize 3D printing dental implants. In order to explore the feasibility of 3D printing dental implants, this paper studied the production technology and various performance indexes of Italian and Swiss dental implants, which provided the basis for the physical properties of 3D printed dental implants. At the same time, it also provides theoretical and technical guidance for home-made dental implants. Secondly, the titanium alloy specimen was printed by 3D printing technology, and the microstructure, hardness, strength and elongation of the specimen were tested, which provided theoretical guidance for the realization of 3D printing dental implants. The main contents of this paper are as follows: (1) analyze two kinds of imported dental implants: determine their geometric structure, composition, microstructure, hardness, study the processing technology. (2) use 1545 渭 m Ti_6Al_4V powder to print 3D. The effects of laser power, scanning speed and coating thickness on the microstructure, hardness, strength and elongation of 3D printed specimens were studied. (3) the effects of different temperatures on the microstructure, hardness and strength of 3D printed specimens were studied. Results: in the range of experiment, the optimum parameters of 3D printer for LM120 were laser power 400W, scanning speed 100mm / s, coating thickness 30 渭 m, and the optimum annealing technology was 750 鈩，
本文编号：2320194
[Abstract]:The 3D printing technology has changed the idea of metal processing technology in the past, and changed the material manufacturing into the increasing material manufacture, which not only saves the material, but also improves the precision of the product. The 3D printing technology can be used to produce dental implants according to the individual requirements of the patients, reduce the amount of alveolar bone loss, shorten the treatment period, and reduce the inconvenience of the patients during the toothless period. At present, dental implants in China mainly rely on imports, expensive, uniform size. There are more than 300 million patients with dental defects in China, which shows that the market of dental implants in China is huge, so it is of great significance to realize 3D printing dental implants. In order to explore the feasibility of 3D printing dental implants, this paper studied the production technology and various performance indexes of Italian and Swiss dental implants, which provided the basis for the physical properties of 3D printed dental implants. At the same time, it also provides theoretical and technical guidance for home-made dental implants. Secondly, the titanium alloy specimen was printed by 3D printing technology, and the microstructure, hardness, strength and elongation of the specimen were tested, which provided theoretical guidance for the realization of 3D printing dental implants. The main contents of this paper are as follows: (1) analyze two kinds of imported dental implants: determine their geometric structure, composition, microstructure, hardness, study the processing technology. (2) use 1545 渭 m Ti_6Al_4V powder to print 3D. The effects of laser power, scanning speed and coating thickness on the microstructure, hardness, strength and elongation of 3D printed specimens were studied. (3) the effects of different temperatures on the microstructure, hardness and strength of 3D printed specimens were studied. Results: in the range of experiment, the optimum parameters of 3D printer for LM120 were laser power 400W, scanning speed 100mm / s, coating thickness 30 渭 m, and the optimum annealing technology was 750 鈩，
本文编号：2320194
本文链接：https://www.wllwen.com/yixuelunwen/swyx/2320194.html
