新功能、新界面、新体验,扫描即可下载生物谷APP!
首页 » 生物研究 » Science封面故事: 快速3D打印技术

Science封面故事: 快速3D打印技术

来源:生物谷 2015-03-24 09:15

 2015年3月24日讯 /生物谷BIOON/ --最近著名的《科学》杂志以封面文章的形式报道了革命性的3D打印技术。这种技术在连续的液态界面上利用可调控的光化学反应将3D模型变成一个实物模型,比如封面图片中的埃菲尔铁塔。紫外光可以触发液态树脂发生光聚合反应,然而氧气的存在却会抑制这样的反应。通过在这两者之间寻找一个平衡,研究人员可以从一个液态树脂中生长出一个物件来,相比于传统一层一层的3D打印技术,该打印的速度可以提高25到100倍。

六分钟内快速打印埃菲尔铁塔:

(生物谷Bioon.com)

 

本文系生物谷原创编译整理。欢迎转载!转载请注明来源并附原文链接。更多资讯请下载生物谷资讯APP。

DOI: 10.1126/science.aaa2397

Continuous liquid interface production of 3D objects

John R. Tumbleston1, David Shirvanyants1, Nikita Ermoshkin1, Rima Janusziewicz2, Ashley R. Johnson3, David Kelly1, Kai Chen1, Robert Pinschmidt1, Jason P. Rolland1, Alexander Ermoshkin1,*, Edward T. Samulski1,2,*, Joseph M. DeSimone1,2,4,*

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.

温馨提示:87%用户都在生物谷APP上阅读,扫描立刻下载! 天天精彩!


相关标签

最新会议 培训班 期刊库