What is 3D printing?3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file.It is a rapid prototyping technology,based on the digital model file, using powdery metal , plastic and other adhesive materials, through the layers of the way to build objects to the technology.第1页/共12页第一页，共13页。How does 3D printing work?第2页/共12页第二页，共13页。Three elementsdigital file3D printermaterial第3页/共12页第三页，共13页。metalNylon glass fiberPLAResinrubberPhotosensitive resin第4页/共12页第四页，共13页。Three elementsdigital file3D printermaterial第5页/共12页第五页，共13页。 3D printing mainstream technologyFDM（Fused Deposition Modeling）SLA（Stereolithigraphy Apparatus）3DP（Three Dimensional Printing and Gluing）SLS (Selecting Laser Sintering)第6页/共12页第六页，共13页。FDM（Fused Deposition Modeling）熔融）熔融(rngrng)沉积快速成型沉积快速成型By melting the filamentous material，those molten material will melt and squirt out from the nozzle.It will be deposited in the production panel or a layer of solidified material.When the temperature was lower than the curing temperature,It will began to cure, and form the final product through stacking materials layer by layer.Advantages： Simple structure Easy to design Low manufacturing costsMain material： ABS PLA Composite第7页/共12页第七页，共13页。SLA（Stereolithigraphy Apparatus）光固化成）光固化成型型(chngxng)SLA is the earliest developed rapid prototyping technology, and also is one of the most in-depth,mature and widely used rapid prototyping technology.The main materials of SLA is photosensitive resin.It through ultraviolet light or other light source solidification molding, layer by layer curing, get the final product ultimately.第8页/共12页第八页，共13页。3DP（Three Dimensional Printing and Gluing） 三维三维粉末粉末(fnm)粘接粘接3DP working principle:Firstly paving a layer of powder, and then using the nozzle to spray the adhesive in the need to shape the area, so that the material powder bonded together and form of cross-section.Advantages： forming fast the product is rich in colorMain material： ceramic powder metal powder plastic powder第9页/共12页第九页，共13页。SLS (Selecting Laser Sintering)选择性激光选择性激光(jgung)烧结烧结The powder material is sintered under laser irradiation and is piled up by a computer control.But the overall technical is very difficulty and the manufacturing and maintenance costs are very high.第10页/共12页第十页，共13页。Thanksforlistening第11页/共12页第十一页，共13页。感谢您的观看(gunkn)！第12页/共12页第十二页，共13页。内容(nirng)总结What is 3D printing。FDM（Fused Deposition Modeling）。FDM（Fused Deposition Modeling）熔融沉积(chnj)快速成型。第11页/共12页。感谢您的观看。第12页/共12页第十三页，共13页。