薄壁钛合金壳体铸件复合铸型铸造工艺研究  

Study on Compound Mold Casting Technology of Thin-walled Titanium Alloy Shell Castings

作　　者：刘一铎 刘宏宇 徐凯 马志毅 杨海涛 张新 宁兆生 王伟龙 杨晓曦 LIU Yiduo;LIU Hongyu;XU Kai;MA Zhiyi;YANG Haitao;ZHANG Xin;NING Zhaosheng;WANG Weilong;YANG Xiaoxi(China Academy of Machinery Shenyang Research Institute of Foundry Co.,Ltd.,Shenyang 110022,China;Military Representative Office of Air Force Equipment Department in Liaoyang Region,Shenyang 110000,China)

机构地区：[1]中国机械总院集团沈阳铸造研究所有限公司,沈阳110022 [2]空军装备部驻辽阳地区军事代表室,沈阳110000

出　　处：《材料导报》2024年第S02期385-389,共5页Materials Reports

基　　金：国家基础研究项目(160222ZG01)。

摘　　要：针对薄壁钛合金壳体铸件铸造过程中存在的尺寸精度低、表面质量差等技术问题,采用一种石墨型复合砂芯铸造工艺,该砂芯具有适用性强、精度高、成本低等特点。通过对浇铸结果的分析可知,该铸件非加工面处尺寸精度可控制在±0.2 mm,表面粗糙度控制在3.2~6.3μm,可实现对薄壁钛合金壳体铸件的研制生产。Aiming at the technical problems of low dimensional accuracy and poor surface quality in the casting process of thin-walled titanium alloy shell castings,a graphite composite sand core casting process was adopted,which has the characteristics of strong applicability,high accuracy and low cost.Through the analysis of casting results,the dimensional profile accuracy of the non-machined surface of the casting can be controlled within±0.2 mm,and the surface roughness can be controlled within 3.2-6.3μm,which can realize the development and production of thin-walled titanium alloy shell castings.

关 键 词：钛合金 薄壁壳体 石墨-砂芯复合铸型 ProCAST数值模拟 

分 类 号：TG249.5[机械工程—精密仪器及机械]