火箭箱底大型薄壁零件拉形工艺及回弹补偿研究  

Research on the stretch forming process and springback compensation of large thin-walled parts of the bottom of the rocket box

作　　者：陈树来 王庆元 杜丽峰[2] 李利清[2] 尹健 CHEN Shulai;WANG Qingyuan;DU Lifeng;LI Liqing;YIN Jian(Tianjin Tianduan Aviation Technology Co.,Ltd.,Tianjin 300222,China;Tianjin Tianduan Press Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]天津天锻航空科技有限公司,天津300222 [2]天津市天锻压力机有限公司,天津300222

出　　处：《锻压装备与制造技术》2024年第4期111-115,共5页China Metalforming Equipment & Manufacturing Technology

基　　金：天津市科技计划项目(并联高端装备创新设计方法及其软件技术研究,22JCZDJC00350)。

摘　　要：根据单拉实验获得火箭箱底大型薄壁零件所使用的硬化不锈钢材料力学性能参数。通过分析薄壁曲面件的结构特点,制定拉形工艺参数并研究回弹补偿系数对成形贴胎度的影响,通过数值模拟与实验验证的结果获得该类硬化不锈钢回弹补偿系数为1.588。拉形工艺回弹补偿系数的运用为实际生产提供理论基础和实践经验,并且对该类硬化不锈钢薄壁双曲类零件的批量化生产具有深远的指导意义。The mechanical properties parameters of hardened stainless steel used for large thin-walled parts at the bottom of rocket box were obtained by single pull test.The structural characteristics of thin-walled curved parts are analyzed.the drawing process parameters were established by analyzing the structural characteristics of thin-walled curved parts.the influence of springback compensation coefficient on the forming stick degree was studied.theoretical basis and practical experience for practical production is provided by the application of the springback compensation coefficient of stretching forming process.And it has far-reaching guiding significance for the mass production of this kind of hardened stainless steel thin-wall curved parts.

关 键 词：硬化不锈钢 拉形 数值模拟 回弹补偿 

分 类 号：TG386[金属学及工艺—金属压力加工] TG356.2