3D Printed Smart Mold for Sand Casting: Monitoring Binder Curing

IF 2.6 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING International Journal of Metalcasting Pub Date : 2024-05-09 DOI:10.1007/s40962-024-01314-8
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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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.

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用于砂模铸造的 3D 打印智能模具:监控粘合剂固化
三维打印的设计自由度允许采用传统方法无法实现的新型模具设计,例如螺旋浇口和空间变化的晶格铸件。然而,对打印模具固化时间(包括老化)的研究还需要更多探索。本研究介绍了三维打印试样的实验情况,其中嵌入的环境传感器在粘合剂喷射过程中断期间被完全封装到砂块中。随后,在 28 天的持续时间内,对三种环境处理方法的湿度、挥发性有机化合物 (VOC) 生成量、温度和气压进行了采集。在相同条件下对标准试样进行了机械测试。根据高湿度和/或低温会阻碍固化的假设,在高湿度(不受控制)和低温条件下的砂结构在统计学上比第三种处理方法更弱。
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来源期刊
International Journal of Metalcasting
International Journal of Metalcasting 工程技术-冶金工程
CiteScore
4.20
自引率
42.30%
发文量
174
审稿时长
>12 weeks
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).
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