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3D打印技术在多级泵铸件中的应用研究
Application Study of 3D Sand Printing Technology in Multistage Pump Casting 在线阅读 下载PDF
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- DOI:
- 作者:
- 徐继坤 刘克新 郑霏
XU Jikun;LIU Kexin;ZHENG Fei
- 作者单位:
- 洛阳双瑞特种装备有限公司
Luoyang Sunrui Special Equipment Co.,Ltd.,Luoyang 471000,China
- 关键词:
- 3D打印 多级泵 整体砂芯
3D printing technology multistage pump whole sand core
- 摘要:
- 以多级泵整体砂芯为例,分别从制芯、合箱和模具存储环节分析了传统手工制芯工艺现状,介绍了喷墨3D打印机在多级泵砂型铸造中的应用。结果表明,与传统的手工制芯相比,3D打印砂芯表面光洁,均匀一致,外观质量好,无明显缺陷,强度能够满足生产需求;通过1∶1设计的砂芯比例验证了铸件流道尺寸,铸件流道表面质量明显比手工芯好,无劈缝、流痕、砂眼、结疤、缺肉等铸造缺陷。3D砂型打印减少制造环节,节约时间和原材料,提高铸件的尺寸精度和表面质量,降低了复杂结构产品的生产难度。Taking the integral sand core of multistage pump as an example, the status quo of traditional manual sand molding process was analyzed from the aspects of core making, box closing and mold storage. The application of ink-jet3 D printer in multistage pump sand mold casting was introduced. The results show that compared with the traditional manual mold making, the 3 D printed sand mold has smooth surface, uniform and consistent appearance, good quality, no obvious defects, and the strength can meet the production requirements. The casting runner size is verified by 1 ∶1 sand mold ratio, and the surface quality of casting runner is obviously better than that of manual core, without casting defects such as split seam, flow mark, sand hole, scar and lack of flesh. 3 D sand printing reduces the manufacturing process, saves time and raw materials, improves the dimensional accuracy and surface quality of castings, and reduces the production difficulty of complex structural products.