Continuous liquid interface production of 3D objects
Continuous liquid interface production of 3D objects
复制标题
DOI：
10.1126/science.aaa2397
复制
发表时间：
2015-03-20
期刊：
影响因子：
56.9
通讯作者：
DeSimone, Joseph M.
中科院分区：
文献类型：
--
作者：
Tumbleston, John R.;Shirvanyants, David;DeSimone, Joseph M.
诸如3D打印的增材制造工艺使用耗时的、逐步逐层的方法来制造物体。我们展示了连续生成的单片聚合物部件的尺寸高达几十厘米，特征分辨率低于100微米。连续液体界面的产生是通过紫外图像投影平面下方的氧气可渗透窗口实现的，这产生了“死区”（持久液体界面），其中在窗口和聚合部分之间抑制了光聚合。我们描绘了关键的控制参数，并表明，复杂的固体部分可以绘制出的树脂在数百毫米每小时的速度。这些打印速度允许零件在几分钟内而不是几小时内生产。
Additive manufacturing processes such as 3D printing use time-consuming, stepwise layer-by-layer approaches to object fabrication. We demonstrate the continuous generation of monolithic polymeric parts up to tens of centimeters in size with feature resolution below 100 micrometers. Continuous liquid interface production is achieved with an oxygen-permeable window below the ultraviolet image projection plane, which creates a "dead zone" (persistent liquid interface) where photopolymerization is inhibited between the window and the polymerizing part. We delineate critical control parameters and show that complex solid parts can be drawn out of the resin at rates of hundreds of millimeters per hour. These print speeds allow parts to be produced in minutes instead of hours.