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Saturday, October 6 • 4:05pm - 4:45pm
4D Printing: Making Additive Manufacturing Alive

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4D printing is a novel concept that emerges in recent years, benefiting from the rapid development of advanced 3D printing technologies and active materials. In 4D printing, upon external stimuli on demand, a 3D printed part can change its shapes as a function of time, which becomes the 4th dimension of the shape forming process. 4D printing offers the advantages of forming complicated 3D shapes from low dimensional structures, saving printing materials and printing times, etc. These make it suitable for applications including morphing structures, sensors, actuators, and soft robots. In this talk, we start with the concept of 4D printing. We will then illustrate a few methods of how we use the mechanics in photopolymerization to general shape shifting structures. These include a direct 4D printing where we use the residual stress generated during inkjet 3D printing, a digital light printing method where we use the grayscale in digital light processing to control the photocuring-induced residual stress for 2D and 3D structures.  Finally, we discuss the challenge and future directions for 4D printing

avatar for H. Jerry Qi

H. Jerry Qi

Professor, Georgia Institute of Technology
Dr. H. Jerry Qi is Professor and the Woodruff Faculty Fellow in the George W. Woodruff School of Mechanical Engineering at Georgia Tech. He received his bachelor degree and graduate degrees from Tsinghua University and a Doctor of Science degree from Massachusetts Institute of Technology... Read More →

Saturday October 6, 2018 4:05pm - 4:45pm
Conference Room A

Attendees (52)

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