摘要
将钛合金拼焊蒙皮组合件作为一个大型零件直接进行一次等温热成形,替代原有的多次热成形和焊接流程。开发了适用于大型模具制造的新型耐热铸钢材料XZ19-4N,具有良好的综合力学性能和抗高温氧化性,各项性能指标优于现行技术要求。设计了整体成形工装,采用工艺过程模拟仿真分析技术预判成形质量,减少了实验成本和误差,形成了钛合金整体化等温热成形方法,实现了超大型钛合金蒙皮的无焊缝整体成形。
The integral titanium alloy skin composed with welding parts has been formed in hot only once so as to substitute for many times hot forming and welding process.The new heat-resisting alloy material XZ19-4N was developed.Its many advantages such as comprehensive mechanical and high-temperature oxidation resistant property and so on exceeded current technical standard.The integral die was designed and finite element numerical simulation was adopted to assess forming quality to reduce cost and error of the experiment.The integral hot forming titanium alloy skin was realized without welding.
作者
朱丽
ZHU Li(Research Institution of Technology,Shenyang Aircraft Corporation,Shenyang 110850,CHN)
出处
《制造技术与机床》
北大核心
2020年第8期27-30,67,共5页
Manufacturing Technology & Machine Tool
基金
国家科技重大专项(2013ZX04001041)。
关键词
钛合金
拼焊
蒙皮
模具材料
整体化
titanium alloy
welding
skin
die material
integral hot forming
