航空发动机机匣数控加工参数研究  

Research on numerical control machining parameters of aircraft engine casing

作　　者：张新运[1] 王泽箫 曹岩[1] 董建 耿楠 ZHANG Xinyun;WANG Zexiao;CAO Yan;DONG Jian;GENG Nan(School of Electrical and Mechanical Engineering,Xi’an Technological University,Xi’an 710021,CHN)

机构地区：[1]西安工业大学机电工程学院,陕西西安710021

出　　处：《制造技术与机床》2024年第8期9-15,共7页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金项目(52275508);西安市科技计划项目(23GXFW0031)。

摘　　要：航空发动机机匣作为发动机的主要零部件,通常选用高温合金毛坯加工而成,铣削力等评价指标将严重影响此类零件的加工效率以及加工质量。首先,通过研究机匣的加工工艺,应用DEFORM-3D软件对材料为镍基合金GH4169的机匣粗铣加工过程进行了铣削仿真分析,以铣削力为评价指标,通过仿真分析,得到不同铣削参数下铣削力的变化规律。其次,针对仿真结果进行方差分析,得出不同指标对铣削力的影响大小,根据仿真结果对参数进行拟合,建立机匣铣削加工过程中铣削力预测模型。最后,运用遗传算法进行算法寻优,得到一组最优的铣削参数,为机匣实际加工提供指导依据。As the main parts of the engine,the aircraft engine casing is usually made of superalloy blanks.This paper focuses on the optimization of milling force and other evaluation indexes to improve the machining efficiency and machining quality.Firstly,we studied the machining technology of the casing,and applied DEFORM-3D software to conduct milling simulation analysis on the rough milling process of the casing made of nickel-based alloy GH4169.The milling force was taken as the evaluation index,and the changing rules of the milling force under different milling parameters were obtained.Secondly,the influence of different indexes on milling force is analyzed,and the parameters are fitted according to the simulation results,and the prediction model of milling force is established.Finally,a set of optimal milling parameters are captured by using genetic algorithm,which provides guidance for the actual machining of the casing.

关 键 词：机匣加工工艺 有限元仿真 预测模型 算法寻优 

分 类 号：TH164[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]