考虑刀具跳动的GH3128镍基高温合金瞬时切削厚度与铣削力建模  

Modeling of Instantaneous Cutting Thickness and Milling Force for GH3128 Nickel Based High Temperature Alloy Considering Tool Runout

作　　者：王喆 彭宝营[1] 吴伟 王鹏家 Wang Zhe;Peng Baoying;Wu Wei;Wang Pengjia(School of Mechanical and Electrical Engineering,Beijing Information Science and Technology University,Beijing 100192,China;不详)

机构地区：[1]北京信息科技大学机电工程学院,北京市100192 [2]宁夏理工大学机械工程学院

出　　处：《工具技术》2025年第2期89-95,共7页Tool Engineering

摘　　要：GH3128镍基高温合金多用于航空航天的精密零部件,而精密加工过程中的精确铣削力模型是优化铣削参数和保持工艺稳定性的基础。加工中刀具径向跳动不可避免,而现有铣削力模型较少考虑刀具径向跳动的影响,模型的实际应用有限。在考虑刀具径向跳动下建立不同切削刃的刀具瞬时切削厚度模型,获得铣削力的预测模型。在模型中,通过迭代跳动参数,计算铣削力与铣削力系数来校准真正的刀具径向跳动值。试验验证所提模型的精度,比较铣削力曲线发现,建立的铣削力模型比不考虑刀具跳动的模型具有更好的精度。GH3128 nickel based high-temperature alloy is commonly used for precision components in aerospace,and the precise milling force model during precision machining is the foundation for optimizing milling parameters and maintaining process stability.The radial runout of cutting tools is inevitable in machining,and existing milling force models rarely consider the impact of tool radial runout,resulting in limited practical applications of the model.Based on the radial runout state of the cutting tool,instantaneous cutting thickness models for different cutting edges are established,and a predictive model for milling force was obtained.In the model,the actual tool radial runout value is calibrated by iterating the runout parameters and calculating the milling force and the force coefficient.The accuracy of the proposed model is verified through experiments.By comparing the milling force curves,it is found that the established milling force model has better accuracy than the model without considering tool runout.

关 键 词：镍基高温合金 刀具跳动 瞬时切削厚度 铣削力建模 

分 类 号：TG54[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]