An improved cutting force prediction model in the milling process with a multi-blade face milling cutter based on FEM and NURBS
An improved cutting force prediction model in the milling process with a multi-blade face milling cutter based on FEM and NURBS
复制标题
DOI：
10.1007/s00170-019-04017-1
复制
发表时间：
2019-07
期刊：
影响因子：
--
通讯作者：
Sijie Cai;Bin Yao;Wei Feng;Zhiqin Cai
中科院分区：
文献类型：
--
作者：
Sijie Cai;Bin Yao;Wei Feng;Zhiqin Cai
多刃面铣刀广泛应用于机械零件的精加工。铣削过程中的切削力是促进机床主轴颤振的关键因素，可用于预测加工表面粗糙度。本文提出了一种基于非均匀有理基样条（NURBS）和有限元法（FEM）的新型切削力预测模型。采用有限元法模拟不同参数下的单刃切削力，并采用NURBS插值法建立单刃切削力模型。然后，结合刀尖运动模型，可以预测多刃面铣刀的切削力。为了验证所提方法预测切削力的正确性，以常用的基于系数的切削力数学预测方法为基准，与预测结果进行比较。通过与实验数据的比较验证了准确性。根据收集的实验数据，证明该模型是一种准确有效的预测多刃面铣刀铣削过程中切削力的方法。
Multi-blade face milling cutters are widely used in the finish machining of mechanical parts. The cutting force in the milling process is a crucial factor that promotes the chatter of the machine spindles, which can be used to predict the machined surface roughness. In this paper, a novel cutting force prediction model based on non-uniform rational basis splines (NURBS) and finite element method (FEM) is proposed. Single blade cutting forces under different parameters are simulated by FEM, and a cutting force model of the single blade is established by the NURBS interpolation method. Then, combined with the tool tip motion model, the cutting force of the multi-blade face milling cutter can be predicted. To verify the correctness of the cutting force predicted by the proposed method, the common coefficient-based cutting force mathematical prediction method is utilized as benchmark for comparison with the predicted results. The accuracy is verified by comparison with experimental data. According to the collected experimental data, the proposed model is proved to be an accurate and efficient method to predict the cutting force of the multi-blade face milling cutter in the milling process.