TA15钛合金复杂传力结构件模锻成形润滑优化  

Lubrication optimization on die forging for complex force transferring structural parts of TA15 titanium alloy

作　　者：解洋 石胜龙 言国华 陈志民 党赏 于泓权 Xie Yang;Shi Shenglong;Yan Guohua;Chen Zhimin;Dang Shang;Yu Hongquan(Forging Workshop,Xi′an Space Engine Co.,Ltd.,Xi′an 710100,China;Technology Center,Hunan INNOCHINA Advanced Materials Co.,Ltd.,Yueyang 414000,China)

机构地区：[1]西安航天发动机有限公司锻造车间,陕西西安710100 [2]湖南中创空天新材料股份有限公司技术中心,湖南岳阳414000

出　　处：《锻压技术》2024年第12期9-19,共11页Forging & Stamping Technology

摘　　要：针对某型号航天发动机机架TA15钛合金复杂传力结构件组织均匀性问题展开研究,基于Deform-3D数值仿真软件,对模锻成形方案进行分析,并对模锻成形的接触条件及润滑进行优化,最终进行了小批量生产验证。结果显示:模锻成形最后阶段,小端端面温度较低,造成载荷骤增,锻件内外温度差异大,且设备压力无法满足要求。优化后金属变形合理,锻件填充完整,改善了温度场和等效应变场分布,降低了模锻成形载荷,模锻件组织均匀,各项力学性能优异,提高了该型号发动机在复杂环境下的服役可靠性。For the issue of organizational uniformity of TA15 titanium alloy complex force transmission structural components for a certain type of aerospace engine frame was studied,and based on numerical simulation software Deform-3D,the forging scheme was analyzed.And the contact conditions and lubrication of the forging process were optimized,finally a small batch production was verified.The results show that in the final stage of forming,the low temperature at the end face causes a sudden increase in load,resulting in a large temperature difference between the inside and outside of forgings,and the equipment pressure cannot meet the requirements.After optimization,the metal deformation is reasonable,the forgings are filled completely,the distribution of temperature field and equivalent strain field is improved,the forging load is reduced,the microstructure of forgings is uniform,and the mechanical properties are excellent,which improves the service reliability of the engine in complex environments.

关 键 词：TA15钛合金 模锻 结构件 组织均匀性 润滑条件 

分 类 号：TG316.3[金属学及工艺—金属压力加工]