3D打印材料 3D PRINTED MATERIALS

3D打印材料 3D PRINTED MATERIALS

3D打印，也稱為附加制造（AM），是指在計算機控制下合成連續(xù)材料層的3D對象的過程。對象幾乎可以是任何形狀或幾何體，并由數(shù)字三維模型生成。AM工藝可分為七類：粘結(jié)劑噴射、定向能沉積、材料擠壓、材料噴射、粉末床熔融、片材層壓和還原光聚合。3D打印材料通常從塑料到金屬不等。近，許多研究小組致力于生物材料（通常是細(xì)胞種子水凝膠）的三維打印，將重點放在組織重建上。機械測試可用于工藝的各個階段，例如評估原材料的機械性能、嚙合結(jié)構(gòu)的機械評估和三維打印對象的機械評估。

3D printing, also known as additive manufacturing (AM), refers to processes used to synthesize a 3D object in which successive layers of material are formed under computer control. Objects can be of almost any shape or geometry and are produced from digital 3D models. There are seven categories of AM processes: Binder Jetting, Directed Energy Deposition, Material Extrusion, Material Jetting, Powder Bed Fusion, Sheet Lamination and Vat Photopolymerization. 3D printing materials typically range from plastic to metal. Recently, many research group works on the 3D printing of biomaterials (typically cell-seeded hydrogels) put focus on their use for tissue reconstruction. Mechanical testing can be used at various stages of the process, e.g. in the evaluation of the mechanical properties of the raw material, the mechanical evaluation of the meshing structure and the mechanical evaluation of the 3D printed object.