Nathaniel Bryant, Josh O’Dell, Sairam Ravi, Jerry Thiel, Janely Villela, Juan Owen Villela, Eric MacDonald, Alan Alemán, Brandon Lamoncha, Brian Vuksanovich, Rich Lonardo
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引用次数: 0
Abstract
The design freedom of 3D printing allows for new mold designs—not possible with traditional approaches—such as helical sprues and spatially varying lattice castings. However, research on the curing time of printed molds, including the aging, requires more exploration. This study describes the experiments of 3D printed specimens in which embedded environmental sensors were fully encapsulated into sand blocks during an interruption of the binder jetting process. Subsequently, over a 28-day duration, humidity, volatile organic compound (VOC) generation, temperature and barometric pressure were captured for three environmental treatments. Mechanical testing of standard test specimens subjected to the same conditions was conducted. The sand structures held in high (uncontrolled) humidity and at reduced temperature were statistically weaker than a third treatment based on the hypothesis that high humidity and/or low temperatures impede curing.
期刊介绍:
The International Journal of Metalcasting is dedicated to leading the transfer of research and technology for the global metalcasting industry. The quarterly publication keeps the latest developments in metalcasting research and technology in front of the scientific leaders in our global industry throughout the year. All papers published in the the journal are approved after a rigorous peer review process. The editorial peer review board represents three international metalcasting groups: academia (metalcasting professors), science and research (personnel from national labs, research and scientific institutions), and industry (leading technical personnel from metalcasting facilities).