大悬伸工况下刀具铣削稳定性的影响研究  

Study on Influence of Tool Milling Stability under Large Overhanging Working Condition

作　　者：韩毅[1,2] 熊计 杨露[1,2] 郭仕华 代洋[3] Han Yi;Xiong Ji;Yang Lu;Guo Shihua;Dai Yang(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China;不详)

机构地区：[1]四川大学机械工程学院,成都市610065 [2]宜宾四川大学产业技术研究院 [3]四川仨川航空科技有限公司

出　　处：《工具技术》2025年第3期94-99,共6页Tool Engineering

基　　金：四川省科技计划项目(2023ZHCG0049,2022YFG0285);航空难加工材料切削刀具管理技术研发(2022H033)。

摘　　要：针对大悬伸工况下铣刀加工稳定性差的问题,对铣削过程中的刀具刚性进行仿真分析。结合大悬伸工况下的实际加工情况,对刀具进行简化并建模,建立用于大悬伸加工的铣刀模型。选择铣刀片前角、加工主轴转速和加工进给速率三个主要因素进行有限元仿真实验。基于DEFORM软件分析加工过程中的平均扭矩和径向载荷等,以提升刀具刚性为优化目标,得到最适合的加工参数。分析单个刀片铣削过程的受力变化趋势,确定加工过程中最大载荷出现的大致位置。Aiming at the problem of poor stability of milling cutter machining under large overhanging working conditions,the tool rigidity in the milling process is simulated and analysed.Combined with the actual machining situation under the large overhanging working condition,the tool is simplified and modelled,and the milling cutter model for large overhanging machining is established.The three main factors,namely the front angle of the milling cutter blade,the machining spindle speed and the machining feed rate,are selected to carry out finite element simulation experiments.Finite element simulation is carried out by DEFORM software to analyse the average torque and radial load during the machining process,with the optimisation objective of improving tool rigidity to obtain the most suitable parameters for machining.The trend of force changes in the milling process of a single insert is analysed to determine the approximate location where the maximum load occurs in the machining process.

关 键 词：大悬伸铣削 刀具刚性 DEFORM有限元仿真 参数优化 

分 类 号：TG54[金属学及工艺—金属切削加工及机床] TH164[机械工程—机械制造及自动化]