3D打印材料 3D PRINTED MATERIALS

3D打印材料 3D PRINTED MATERIALS

3D打印材料 3D PRINTED MATERIALS

3D打印，也称为附加制造（AM），是指在计算机控制下合成连续材料层的3D对象的过程。对象几乎可以是任何形状或几何体，并由数字三维模型生成。AM工艺可分为七类：粘结剂喷射、定向能沉积、材料挤压、材料喷射、粉末床熔融、片材层压和还原光聚合。3D打印材料通常从塑料到金属不等。近，许多研究小组致力于生物材料（通常是细胞种子水凝胶）的三维打印，将重点放在组织重建上。机械测试可用于工艺的各个阶段，例如评估原材料的机械性能、啮合结构的机械评估和三维打印对象的机械评估。

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.