Reduced consumption of materials and hazardous chemicals for energy efficient production of metal parts through 3D printing of sand molds
Reduced consumption of materials and hazardous chemicals for energy efficient production of metal parts through 3D printing of sand molds
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DOI：
10.1016/j.jclepro.2019.03.158
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发表时间：
2019-07-01
影响因子：
11.1
通讯作者：
Dargusch, Matthew S.
中科院分区：
文献类型：
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作者：
Sivarupan, Tharmalingam;Upadhyay, Meet;Dargusch, Matthew S.
对于许多要求苛刻的工程应用来说，金属仍然是必不可少的结构材料，这些工程应用需要在高温下具有高强度，并且在汽车、铁路和飞机工业中经常遇到的高热波动环境中具有良好的性能。砂型铸造工艺是在高温下用具有良好强度的金属生产复杂形状部件的最优选方法之一。不幸的是，砂型铸造过程也会直接或间接地产生二氧化碳。三维砂型印刷通过减少不必要的金属和化学物质的消耗，通过砂型铸造制造零件，已经彻底改变了传统的生产方法。本文探讨了砂型3D打印领域正在出现的机遇，以及这些新技术和实践对当前砂型铸造工艺的环境影响的积极影响。该论文表明，3D打印砂模能够实现新的制造策略，减少直接二氧化碳排放，并通过实现组件和模具/核心组件的设计优化，减少所需的金属量。通过开发环境友好型粘合剂系统，将实现进一步的效益。(C) 2019 Elsevier Ltd.版权所有。
Metals remain essential structural materials for many demanding engineering applications requiring high strength at elevated temperatures and good performance in environments subjected to high thermal fluctuations such as often encountered in the automotive, rail and aircraft industries. The sand-casting process is one of the most preferred methods of producing complex and intricate shaped components out of metals with good strength at elevated temperatures. Unfortunately, the sand casting process also leads to the direct and indirect production of carbon dioxide. Three-dimensional sand mold printing has been revolutionizing traditional production methods by reducing the unnecessary consumption of metal and chemicals when manufacturing a part through sand casting. This paper explores the opportunities that are emerging in the area of 3D printing of sand molds and the positive impact that these new technologies and practices are having on the environmental impact of current sand-casting processes. The paper demonstrates that 3D printing of sand molds enables new manufacturing strategies reducing the direct CO2 emissions and reducing the amount of metal required by enabling design optimization of both the component and mold/core assembly. Further benefits will be realized through the development of environmentally friendly binder systems. (C) 2019 Elsevier Ltd. All rights reserved.