Study on Minimum Cast Wall Thickness of Investment Casting Technology Based on 3D Printing Pattern 在线阅读 下载PDF
Author of the article:GUO Jiandong;YAN Haiyang;YANG Wenliang;XU Jifu;HUANG Shun
Author's Workplace：Beijing National Innovation Institute of Lightweight Co.,Lid.,Beijing 100083,China
Key Words：investment casting shell making filling wall thickness
Abstract：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.
