基于砂型3D打印成形工艺优化制备薄壁叶轮铸件  

Manufacturing of Thin-walled Impeller Based on Optimization of Sand Mold 3D Printing Forming Process

作　　者：艾雨蒙 游志勇[1] 刘世龙 张笙辉 张耀峰 李成坤 谭锐 AI Yumeng;YOU Zhiyong;LIU Shilong;ZHANG Shenghui;ZHANG Yaofeng;LI Chengkun;TAN Rui(Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education,College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030600;KANGSHUO(Shanxi)Intelligent Manufacturing Co.,Ltd.,Jincheng 046700;State Key Laboratory of Light Alloy Casting Technology for High-End Equipment,Shenyang Research Institute of Foundry Co.,Ltd.,Shenyang 110022)

机构地区：[1]太原理工大学材料科学与工程学院,新材料界面科学与工程教育部重点实验室,太原030600 [2]康硕(山西)智能制造有限公司,晋城046700 [3]沈阳铸造研究所有限公司高端装备轻合金铸造技术国家重点实验室,沈阳110022

出　　处：《特种铸造及有色合金》2025年第2期221-227,共7页Special Casting & Nonferrous Alloys

基　　金：山西省重点研发计划资助项目(2022ZDYF072)。

摘　　要：采用Box-Behnken响应面法对砂型3D打印成形工艺开展优化试验,以抗拉强度和发气量作为性能响应,确定树脂喷墨量、固化剂加入量和打印层厚3个工艺参数的水平范围。通过数值模拟获得最优工艺参数组合,并采用低压铸造工艺对试制薄壁叶轮铸件进行验证。结果表明,树脂喷墨量为1.44%,固化剂加入量为0.21%,打印层厚为0.30 mm时,获得打印砂型的抗拉强度为2.15 MPa,发气量为8.92 mL/g,接近预测值。在优化工艺条件下试制的叶轮铸件轮廓完整清晰,质量满足技术要求。The Box-Behnken response surface method was used to optimize the sand mold 3D printing forming pro⁃cess.The horizontal range of resin inkjet content,activator content and printing layer thickness was determined taking tensile strength and gas evolution as response.The optimal combination of process parameters was carried out using numerical simulation,and the thin-walled impeller was trial-produced by low pressure die casting process for verifica⁃tion.The results indicate that when the content of resin inkjet is 1.44%,the content of activator is 0.21%,and the printing layer thickness is 0.30 mm,the tensile strength and gas evolution of printed sand mold reach 2.15 MPa and 8.92 mL/g,respectively,which is close to the predicted value.Under the optimized process conditions,the profile of impeller casting is complete and clear,meating the technical requirements.

关 键 词：3D打印砂型 成形工艺 响应面法 低压铸造 

分 类 号：TG249[金属学及工艺—铸造] TG249.2