航天器齿轮渗碳淬火分析与畸变控制优化  

Analysis and distortion control optimization of carburization and quenching for spacecraft gears

作　　者：杨凯 王鹏坡 张玉梅[4] 曾鸿[4] 张斌 王天明 麻瑜梁 王延忠[2] Yang Kai;Wang Pengpo;Zhang Yumei;Zeng Hong;Zhang Bin;Wang Tianming;Ma Yuliang;Wang Yanzhong(Beijing Spacecrafts,China Academy of Space Technology,Beijing 100094,China;School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China;Space Engineering University,Beijing 102206,China;DFH Satellite Co.,Ltd.,Beijing 100094,China)

机构地区：[1]北京卫星制造厂有限公司,北京100094 [2]北京航空航天大学机械工程及自动化学院,北京100191 [3]航天工程大学,北京102206 [4]航天东方红卫星有限公司,北京100094

出　　处：《金属热处理》2024年第7期22-28,共7页Heat Treatment of Metals

基　　金：国家重点研发计划(2022YFB3404700)。

摘　　要：根据某型号航天器动力齿轮用钢的化学成分,用JMatPro仿真软件计算材料的热物性参数。根据齿轮模型及热处理工艺参数,用Deform有限元软件进行渗碳淬火仿真分析,确定了渗碳过程中的齿面碳含量变化、淬火过程中轮齿显微组织的变化。最后,根据人字齿轮特点及航天器齿轮的精度控制要求,通过改变淬火工艺参数优化淬火后轮齿畸变情况。结果表明,当淬火工艺为在空气中预冷30 s,80℃热油淬火1200 s,-100℃深冷7200 s时,畸变量控制效果较好,符合产品要求。According to the chemical composition of the steel for a spacecraft power gear,the thermal-physical property parameters of the material were calculated by means of JMatPro simulation software.Based on the gear model and heat treatment process parameters,carburizing and quenching simulation analysis was carried out in Deform finite element software to determine the change of carbon content on the tooth surface during carburizing process,and the change of microstructure of the gear teeth during quenching process.Finally,according to the characteristics of herringbone gears and the precision control requirements of spacecraft gears,the distortion of the gear teeth after quenching is optimized by changing the quenching process parameters.The results show that when the quenching process is pre-cooling in air for 30 s,quenching in hot oil at 80℃ for 1200 s and then deep cooling at -100℃ for 7200 s,the amount of distortion is controlled better and meets the product requirements.

关 键 词：CSS-42L钢 人字齿轮 热处理 渗碳 淬火 畸变控制 

分 类 号：TG142.3[一般工业技术—材料科学与工程]