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Essay代写范文|3D打印技术的原理与应用

来源:原创    作者:留学生活网    发布时间:2019-10-10 16:26    阅读: 次    文章分类:范文参考

文章关键词:Essay代写范文


文章导读:本篇Essay代写范文主要讨论了3D打印技术的原理与应用。3D打印即快速成型技术的一种,它是一种以数字模型文件为基础,运用粉末状金属或塑料等可粘合材料,通过逐层打印的方式来构...

  本篇Essay代写范文主要讨论了3D打印技术的原理与应用。3D打印即快速成型技术的一种,它是一种以数字模型文件为基础,运用粉末状金属或塑料等可粘合材料,通过逐层打印的方式来构造物体的技术。3D打印技术在很多领域都有应用,比如在教学领域,教师可以利用3D技术打印一些教育模型,让学生更直观的看到空间结构,发挥他们的想象空间。

       本文题目为:Principle and application of 3D printing technology,以下为Essay代写范文全文,如有Essay代写需要请联系网站客服。

 Essay代写范文|3D打印技术的原理与应用

  With the development of society, science and technology mixed with manufacturing industry have come into our life. More and more objects use modeling to serve our life with the concept of sustainable development. Behind this technology, we call additive manufacturing, or 3D printing technology.
       随着社会的发展,科技与制造业的融合已经走进我们的生活。越来越多的物体用建模的方式为我们的生活服务,用可持续发展的理念。在这项技术的背后,我们称之为附加制造,或3D打印技术。

  3D printing, or rapid prototyping, is a technique that builds objects layer by layer by layer, based on digital model files and using adhesives such as powdered metal or plastic. Here are some ways of 3D printing.
       3D打印,或者说快速成型,是一种基于数字模型文件并使用粘合剂(如粉末金属或塑料)逐层构建对象的技术。下面是一些3D打印的方法。

  Photocurable resin is a transparent, viscous photosensitive liquid, using the chemical and thermal action of light energy to solidify liquid resin, control the shape of light energy layer by layer curable resin, stacked to form the required three-dimensional solid parts. Usually there are three kinds of light, one is through a window mask exposure to the resin surface, make the material produces surface exposure, 2 it is to control the scan head make the high-energy beam selective exposure in the surface of resin, three is to use the projector cast must have the shape of the light source to the surface of resin, to achieve its surface exposure, has more efficiency, the method of using the uv-curable resin material often called light curing method. This method is also known as the SLA method.
       光固化树脂是一种透明、粘稠的感光液体,利用光能的化学和热作用固化液体树脂,控制光能的形状层层固化树脂,堆积成所需的三维固体零件。通常有三种光,一种是通过一个窗口掩模曝光到树脂表面,使材料产生表面曝光,另一种是控制扫描头使高能束选择性曝光在树脂表面,三种是使用投影仪浇铸必须有光源形状的树脂表面,为了实现其表面曝光,具有更高的效率,采用紫外光固化树脂材料的方法通常称为光固化法。这种方法也称为sla方法。

  The advantages of such technology are high speed, high precision and rapid prototyping. Insufficient place is photosensitive fat material is toxic, the operator is protected more.
       该技术具有速度快、精度高、快速成型等优点。不足之处是光敏脂肪物质有毒,操作人员更受保护。

  Laminated entity manufacturing also calls the thin shape selective cutting materials, involving machinery, CNC, polymer materials and computer technology, is one of the important branch, increasing material manufacturing technology by laser, optical system, x-y scanning mechanism, material transport mechanism, hot-pressing paste institutions, platform and control system, this technology is also called the LOM technology. The advantages of this kind of technology lie in the advantages of objects with large forming space and the advantages of raw material cost. The disadvantages are that the elasticity is not good enough and deformation is easy.

  Melt deposition forming, also known as melt extrusion molding, is composed of wire feeding mechanism, nozzle, table, motion mechanism and control system. Material is heated to a molten state in the nozzle, and computer based on layered cross section along a certain path and speed of information control mouth move, being squeezed out from the nozzle and the molten material with a layer of material together, in the cold air, each layer, forming the workbench or move up and down a layer of distance the nozzle, continue to fill the next layer, until the forming, note that the material and the heat balance inside the nozzle, and 3 d modeling, this technology is called FDM technology. The advantage of this kind of technology is simple structure and low cost.

  Engineering, some parts production requirement is high, the traditional process often cannot reach or even reaches but the high cost of using cheap plastic resin can create amazing detail, presents the precision of the complex design flexibility, repeatability, scalability, and so on, on the other hand is used for small batch or single engineering products.

  Teaching development, in one hundred, the education for this, in recent years, the state of higher education costs, teachers can make use of 3 d technology to print some education model, can let the student see space structure, more intuitive to use their imagination space, at the same time, 3 d printing technology using some algorithm, and some knowledge of CAD, can let the students know ahead of time, develop their own hobbies.

  In terms of medical treatment, 3D technology is limited by the size of objects, so we can ask for accuracy and balance of forces in printing, which can be used to print artificial limbs to help more people who lost their legs accidentally to stand up again and live like normal people. "3D printed heart" is another achievement of using 3D printing technology to simulate human organs. The 3D printed heart can be used as a copy of the anatomy of the heart, which is great for practicing complex heart surgery. It can also print "kidney organs", but the technology is not yet ready.

  Construction industry, the process will save the contractor assembly of individual components, and then on the foundation structures, assembly of individual components, the final architecture can be generated directly from the printer, 3 d printers as long as the focus in the sand move can make the pellet sintering solid structure, in fact, this technique can even completely subverts the traditional construction industry. Compared with the traditional construction industry, the 3D printing construction quality will be better, and use less manpower, with complex curved wall.


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