Acoustic‐Modulated, Selective Particle Deposition for Muti‐Material Additive Manufacturing

Author:

Scott Michael1,Bangel Arnold William2,Song Xuan23,Xie Yuliang1ORCID

Affiliation:

1. Roy J. Carver Department of Biomedical Engineering University of Iowa Iowa City IA 52242 USA

2. Department of Industrial and Systems Engineering University of Iowa Iowa City IA 52242 USA

3. Department of Mechanical Engineering University of Iowa Iowa City IA 52242 USA

Abstract

AbstractPowder‐based additive manufacturing (AM) is an important technology in fabricating complex 3D products. In powder‐based AM, a powder deposition system plays a key role in determining the resolution, density, and properties of printed parts. An acoustic‐actuated particle deposition approach, which utilizes acoustic waves to actuate a glass nozzle, enables the deposition of particles in a cost‐effective way. However, the capability to programmably deposit different particles using acoustic waves has yet to be fully demonstrated. Herein, a selective particle deposition approach via acoustic modulation for muti‐material AM is demonstrated. Sequential and parallel depositions of two types of particles by modulating the signal inputs and resonant frequencies of piezo transducers are demonstrated. An AM process is demonstrated by integrating this acoustic‐actuated particle deposition approach with a heat‐curing mechanism. Several products from this system are produced as well. It is expected that this particle deposition approach can be used in a wide spectrum of applications, such as direct manufacturing of multi‐functional materials/devices.

Funder

National Institutes of Health

Cystic Fibrosis Foundation

Publisher

Wiley

Subject

Industrial and Manufacturing Engineering,Mechanics of Materials,General Materials Science

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