摘要
研究了三维喷墨打印(3DP)工艺在中大型冲压模铸钢件制造生产中的应用。测试了打印砂型的抗拉强度、透气性、发气量等性能,并基于3DP工艺设计了砂型。结果表明,3DP打印砂型的抗拉强度可达1.70MPa,透气性大于400,最大发气量为14.6mL/g,均可满足合金钢铸造的使用要求。3DP打印砂型(芯)具有无需模具、可以采用砂型和砂芯整体化工艺等特点,提高了铸件的精度。通过对3DP砂型设计,并通过特殊工艺方法,解决了打印砂型的铸字清晰度的问题。
The application of 3DP process in the manufacture and production of medium and large stamping die casting steel parts was nalyzed.The tensile strength,gas permeability,gas generation and other properties of the sand mold were measured,and sand mold was designed based on 3DP process.The results show that the tensile strength of the sand mold by 3DP technology can reach 1.70 MPa,and the gas permeability is more than 400 with the maximum gas generation of 14.6 mL/g,which can meet the requirements of alloy steel casting.The 3DP process forming sand mold(core)has the advantages of mold free,sand type and sand core integration process,as well as improving the precision of the casting.Through the 3DP sand design,the problem of the sharpness of the printed sand word was solved by a special process.
作者
林少凯
董选普
郭艇
于海春
Lin Shaokai;Dong Xuanpu;Guo Ting;Yu Haichun(State Key Laboratory of Material Processing and Die&Mold Technology,Huazhong University of Science and Technology;Wuhan Huaxiang Tengchuang Intelligent Technology Co.,Ltd.;Jilin Chengding Foundry Co.,Ltd?)
出处
《特种铸造及有色合金》
CAS
北大核心
2020年第4期392-395,共4页
Special Casting & Nonferrous Alloys
基金
吉发改投资支持资助项目[(2018)900号]。
关键词
3DP工艺
抗拉强度
透气性
铸钢件
3DP Process
Tensile Strength
Gas Permeability
Steel Castings
