3D打印模样技术熔模铸造工艺最小铸出壁厚的研究  

Study on Minimum Cast Wall Thickness of Investment Casting Technology Based on 3D Printing Pattern

作　　者：郭建东 闫海洋 杨文亮 徐继福 黄顺 GUO Jiandong;YAN Haiyang;YANG Wenliang;XU Jifu;HUANG Shun(Beijing National Innovation Institute of Lightweight Co.,Lid.,Beijing 100083,China)

机构地区：[1]北京机科国创轻量化科学研究院有限公司,北京100083

出　　处：《铸造技术》2021年第8期712-714,共3页Foundry Technology

基　　金：国家重点研发计划资助:基于互联网的3D打印制造创新应用云服务平台(2016YFB1101800)。

摘　　要：基于蜡模3D打印技术,探索了熔模铸造工艺不同壁厚零件的充型情况。结果表明,3D打印可制备0.5mm及以上蜡模模具,但在浸蜡过程中0.5mm及1.0mm的蜡模均发生明显变形,不满足精度要求,满足浸蜡要求的蜡模最小厚度为1.5 mm;熔模铸造过程中,0.5~2.0 mm厚的铝铸件充型过程出现不同程度的浇不足问题,壁厚2.5 mm的充型良好;0.5~2.5 mm厚的铸铁件充型良好,无明显缺陷。Based on the wax mold 3D printing technology,the mold filling situation of parts with different wall thickness in investment casting process was explored. The results show that the 0. 5 mm and the wax mold can be prepared by 3 D printing,but the 0. 5 mm and 1. 0 mm wax mold are obviously deformed in the process of paraffin dipping,and the minimum thickness of the wax mold meeting the requirements of paraffin dipping is 1. 5 mm. In the process of investment casting,the filling of aluminum castings with 0. 5 ~ 2. 0 mm thickness appears different degree of insufficient casting,and the filling of aluminum castings with 2. 5 mm wall thickness is good. The cast iron of 0. 5 ~ 2. 5 mm thickness has good filling and no obvious defects.

关 键 词：熔模铸造 制壳 充型 壁厚 

分 类 号：TG249[金属学及工艺—铸造]