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3D打印技术，大家也已经都不陌生了。3D打印（3DP)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 printing, also known as additive manufacturing (AM), refers to processes used to create a three-dimensionalobject in which successive layers of material are formed under computer control to create an object. Objects can be of almost any shape or geometry and are produced using digital model data from a 3D model or another electronic data source such as an Additive Manufacturing File (AMF) file. 说不定未来这种技术，会像西部世界那样，打印机器人？ Maybe this technology will be used in AI like Westworld? 西部世界中，3D打印骨骼 3D print bones 人形机器人的制造过程 Humanoid robot manufacturing process 3D打印通常是采用数字技术材料打印机来实现的。常在模具制造、工业设计等领域被用于制造模型，后逐渐用于一些产品的直接制造，已经有使用这种技术打印而成的零部件。该技术在珠宝、鞋类、工业设计、建筑、工程和施工（AEC）、汽车，航空航天、牙科和医疗产业、教育、地理信息系统、土木工程、枪支以及其他领域都有所应用。 The technology is used in jewelry, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields. 今天，给大家分享的是3D打印原理高分子篇，主要介绍SLA、CLIP、3DP、PolyJet和FDM五大技术。 Today we will introduce 5 technologies: SLA, CLIP, 3DP, PolyJet and FDM.
SLA即光固化成型技术，指利用紫外光照射液态光敏树脂发生聚合反应，来逐层固化并生成三维实体的成型方式，SLA制备的工件尺度精度高，是商业化的最早3D打印技术。 Stereolithography (SLA or SL; also known as stereolithography apparatus, optical fabrication, photo-solidification, or resin printing) is a form of 3-D printing technology used for creating models, prototypes, patterns, and production parts in a layer by layer fashion using photopolymerization, a process by which light causes chains of molecules to link, forming polymers. 以下是SLA工艺： SLA process 紫外激光源 UV laser ultra volet 光固化反应 photopolymerization 逐层扫描成型 Layer-by-layer scanning
CLIP即连续液体界面提取技术，是在Carbon 3D公司在SLA技术的基础上开发的具有革命性的3D打印技术，将3D打印的速度提高了100倍！CLIP从底部投影，使光敏树脂固化，不需要固化的部分通过控制氧气，形成死区，抑制光固化反应而保持稳定的液态区域，这样就保证了固化的连续性。 CLIP is a continuous liquid interface extraction technology, is in the Carbon 3D company in the SLA technology developed on the basis of a revolutionary 3D printing technology. 光固化反应 UV-curing 氧气抑制光固化过程 Oxygen suppresses the light curing 光固化死区演示 Deadzone
CLIP成型过程 CLIP molding process
3DP即三维打印快速成型技术，其与传统二维喷墨打印接近，从喷头喷出粘结剂（彩色粘结剂可以打印出彩色制件），将平台上的粉末粘结成型，通常用采用石膏粉作为成型材料。3DP技术目前主要应用有两个：全彩3D打印及砂模铸造。 3DP that is three-dimensional printing rapid prototyping technology, which is close to the traditional two-dimensional inkjet printing, spray from the nozzle adhesive (color adhesive can print out the color pieces), the platform powder bonding molding, usually with the use of Gypsum powder as a molding material. 以下是Exone公司用3DP技术进行砂模铸造的过程： The process 粘结剂喷射 Binder spraying
加热固化 Heat curing
打印成型 Printing
铸造成型 Casting molding
PolyJet即聚合物喷射技术，其成型原理类似3DP技术，但喷射的不是粘合剂而是光固化树脂，喷射完成后通过紫外光照射固化成型。 PolyJet is the polymer jet technology, its forming principle is similar to 3DP technology, but the injection is not a binder but light curing resin, after the completion of the spray through the UV light curing curing molding. PolyJet成型原理 PolyJet forming principle
PolyJet采用阵列式喷头，甚至可以同时喷射不同材料，实现多种材料、多色材料同时打印。 PolyJet uses an array of nozzles, and even can spray different materials at the same time. 阵列喷头工作过程 Array nozzle working process
PolyJet打印过程 The printing process
FDM即熔融层积技术，利用高温将材料熔化，通过打印头挤出成细丝，在构件平台堆积成型。FDM是最简单也是最常见的3D打印技术，通常应用于桌面级3D打印设备。 FDM is using the high temperature to melt materials. FDM is the simplest and most common 3D printing technology, usually used in desktop 3D printing equipment.
以下是FDM技术的工作原理： Working principle
耗材挤出成型 Extrusion
逐层打印过程 Printing process
去除支撑 Remove the upholder
表面处理 Surface treatment
本文转自：新材料在线 ID：xincailiaozaixian 动图来源于Carbon3D、Exone、YouTube等公开网站视频 我们是群关注塑料，机械，医疗，汽车的人儿。 分享好玩好看能用的东西！ 周一至周四：行业资讯快报 周五：外企高端招聘与并购 周末：科技趣味正能量讯息
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