CAJ | 학술논문

提出了一种基于有限元分析方法、试验设计方法和偏最小二乘回归（PLSR）理论相结合的平面端铣加工变形预测方法。以某发动机机体为研究对象，进行了铣削参数的三因素三水平正交试验设计，通过已建立的三维有限元模型分析计算不同参数组合下的工件变形量，并用PLSR方法建立端铣变形预测模型。采用建模数据和非建模数据分别对该预测模型进行对比分析，验证了所提出的建模预测方法的可行性与有效性。
제출료일충기우유한원분석방법、시험설계방법화편최소이승회귀（PLSR）이론상결합적평면단선가공변형예측방법。이모발동궤궤체위연구대상，진행료선삭삼수적삼인소삼수평정교시험설계，통과이건립적삼유유한원모형분석계산불동삼수조합하적공건변형량，병용PLSR방법건립단선변형예측모형。채용건모수거화비건모수거분별대해예측모형진행대비분석，험증료소제출적건모예측방법적가행성여유효성。
A prediction method of machining deformation for face milling was proposed by combining finite element analysis (FEA)、experiment design method and partial least-squares regression (PLSR)theory.By taking the engine's block as a study ob-ject,firstly,orthogonal experiments were designed based on milling parameters' three-level and three-factor.Secondly,according to the three dimensional (3D)FEA model,the deformation value of workpiece under different parameters'combination was computed an-alyzed.Finally,PLSR method was used to set up face milling prediction model for deformation.Two sample data sets,one modeling data and the other non-modeling data were used to verify the predictive model respectively.The results demonstrate that the proposed modeling prediction method is feasible and effective.