无模精密砂型快速铸造技术研究进展  

Progress of Rapid Technology without Mold in Precision Sand Casting

作　　者：朱佩兰[1] 徐志锋[1] 余欢[1] 王振军[1] 

机构地区：[1]南昌航空大学航空制造工程学院

出　　处：《特种铸造及有色合金》2013年第2期136-140,共5页Special Casting & Nonferrous Alloys

基　　金：航空科学基金资助项目(2011ZE56007);江西省自然科学基金资助项目(2010GZC0159);南昌航空大学博士启动基金资助项目(EA201103174)

摘　　要：无模精密砂型快速铸造技术具有制造周期短、成本低、砂型/砂芯一体化制造及制造任意形状复杂铸件等特点。采用该方法制备的砂型(芯)尺寸精度高、表面质量好,可实现复杂铸件的整体近净成形。特别适合于复杂铸件的单件、小批量生产及新产品的试制。综述了基于激光烧结、三维打印、数控加工原理的无模精密砂型快速铸造技术的工艺特点、适用范围,并指出了各自存在的问题及其发展前景。With short manufacturing cycle, low manufacturing costs, sand mold and core integrated man- ufacturing and the development of any complex shaped castings, precision sand casting rapid technology without mold was used to fabricate sand molds or cores with high dimensional accuracy and good surface quality to realize near-net shape of the complex castings, especially suitable for the complex castings of single or small batch production as well as trial of new products. Precision sand casting rapid technology without mold based on laser sintering, 3D printing and CNC machining principles was reviewed, focu- sing on the characteristics of the process, the scope of application, and existing problems as well as de- velopment prospects.

关 键 词：无模精密砂型 快速铸造技术 激光烧结 三维打印 数控加工 

分 类 号：TG242[金属学及工艺—铸造] TG249.5[机械工程—精密仪器及机械]