Conformal Geometry and Multimaterial Additive Manufacturing through Freeform Transformation of Building Layers.
Conformal Geometry and Multimaterial Additive Manufacturing through Freeform Transformation of Building Layers.
复制标题
通过建筑层的自由形式变换的保形几何和多材料增材制造。
DOI：
10.1002/adma.202005672
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发表时间：
2021-03
期刊：
影响因子：
--
通讯作者：
Sun C
中科院分区：
文献类型：
--
作者：
Huang J;Ware HOT;Hai R;Shao G;Sun C
3D打印，正式称为增材制造，通过逐层添加材料来创建复杂的几何形状。虽然3D打印在历史上被认为是静态添加构建层，但3D打印现在被认为是动态组装过程。在这种情况下，这里报告了一种新的3D打印工艺，该工艺在利用连续制造技术的同时执行每个单独构建层的全自由度（DOF）变换（平移、旋转和缩放）。在顺序分层制造过程中转换单个构建层可以动态转换3D打印部件，消除耗时的重新设计步骤。保持对每一层的变换的局部性进一步使得能够进行离散保形变换，从而允许诸如血管支架的对象被最佳地制造以适当地适配在从磁共振成像（MRI）测量获得的特定患者解剖结构内。最后，利用控制每个单独构建层的方向的自由度，进一步建立了多材料、多轴3D打印能力，用于在3D打印设备中集成由不同材料制成的功能模块。这种最终的能力通过3D打印一个软气动夹持器来证明，该夹持器通过刚性基座和软驱动臂的异质集成来实现。
3D printing, formally known as additive manufacturing, creates complex geometries via layer-by-layer addition of materials. While 3D printing has been historically perceived as the static addition of build layers, 3D printing is now considered as a dynamic assembly process. In this context, here a new 3D printing process is reported that executes full degree-of-freedom (DOF) transformation (translating, rotating, and scaling) of each individual building layer while utilizing continuous fabrication techniques. Transforming individual building layers within the sequential layered manufacturing process enables dynamic transformation of the 3D printed parts on-the-fly, eliminating the time-consuming redesign steps. Preserving the locality of the transformation to each layer further enables the discrete conformal transformation, allowing objects such as vascular scaffolds to be optimally fabricated to properly fit within specific patient anatomy obtained from the magnetic resonance imaging (MRI) measurements. Finally, exploiting the freedom to control the orientation of each individual building layer, multimaterials, multiaxis 3D printing capability are further established for integrating functional modules made of dissimilar materials in 3D printed devices. This final capability is demonstrated through 3D printing a soft pneumatic gripper via heterogenous integration of rigid base and soft actuating limbs.
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DOI：
10.1073/pnas.1116564108
发表时间：
2011-12-20
影响因子：
11.1
作者：
Shepherd, Robert F.;Ilievski, Filip;Whitesides, George M.
通讯作者：
Whitesides, George M.
影响因子：
3.9
作者：
Chen, Yong;Zhou, Chi;Lao, Jingyuan
通讯作者：
Lao, Jingyuan
DOI：
10.1007/s11665-017-2747-y
发表时间：
2018-01-01
影响因子：
2.3
作者：
Zhang, Yi;Wu, Linmin;Zhang, Jing
通讯作者：
Zhang, Jing
影响因子：
7.3
作者：
O'Reilly, Michael K.;Reese, Sven;Jones, James F. X.
通讯作者：
Jones, James F. X.
影响因子：
56.9
作者：
Tumbleston, John R.;Shirvanyants, David;DeSimone, Joseph M.
通讯作者：
DeSimone, Joseph M.