瓶腔深孔构件精密镗削切屑卷曲半径预测及控制  

Prediction and control of chip curl radius for precision boring of deep hole components in bottle cavity

作　　者：冯亚洲 杨炜烨 刘战锋 赵昕诚 FENG Yazhou;YANG Weiye;LIU Zhanfeng;ZHAO Xincheng(School of Mechanical Engineering,Xi’an Shiyou University,Xi’an 710065,China;Shaanxi Deep Kong Zhiyue Technology Co.,Ltd.,Xi’an 710077,China)

机构地区：[1]西安石油大学机械工程学院,西安710065 [2]陕西深孔智越科技有限公司,西安710077

出　　处：《现代制造工程》2024年第11期124-130,共7页Modern Manufacturing Engineering

基　　金：陕西省重点研发计划项目(2022QCY-LL-45);西安市科技计划项目(23ZCKCGZH0010);西咸新区科技计划项目(XJZZ-2023-010);西安石油大学研究生创新与实践能力培养计划资助项目(YCS23113075)。

摘　　要：以航天发动机涡轮轴为代表的瓶腔深孔结构零件,在精密镗削过程中容易出现排屑困难、加工效率低等问题,现对镗孔时切屑的形成进行研究,掌握不同工艺参数对切屑形态以及排屑效果的影响规律。基于Box-Behnken法设计试验,利用有限元分析法模拟瓶腔深孔加工过程,以工艺参数为自变量,建立切屑卷曲半径预测模型,选择合理的工艺参数,优化排屑。进行实际加工试验,验证切屑卷曲半径预测模型的准确性;试验结果表明试验值与预测值相似度达90%以上,证明了切屑卷曲半径预测模型的有效性、准确性。In the process of precision boring,the deep hole structure parts of the bottle cavity,represented by the aerospace engine vortex shaft,are prone to chip removal difficulties and low processing efficiency.The formation of chips during boring was studied,and the influence of different process parameters on chip morphology and chip removal effect was mastered.Based on the Box-Behnken design test,the finite element analysis method was used to simulate the deep hole machining process of the bottle cavity,and the chip curl radius prediction model was established with the process parameters as the independent variables,and the reasonable process parameters were selected to optimize the chip removal.The accuracy of the chip curl radius prediction model was verified by actual machining test.The test results show that the similarity between the test value and the predicted value was more than 90%,which proves the validity and accuracy of the chip curl radius prediction model.

关 键 词：瓶腔深孔加工 Box-Behnken试验 切屑形态 容屑系数 

分 类 号：TG53[金属学及工艺—金属切削加工及机床]