- 期刊
Study on Cutting Forces and Material Removal Rate in Hard Milling of SKD 61 Alloy Steel
SKD 61合金鋼硬銑削力和材料移除率之研究
摘要
This paper analyzes the effect of machining parameters on cutting forces and material removal rate (MRR) in hard milling of hardened SKD 61 alloy steel based on integration of Taguchi method and response surface methodology (RSM). A set of experiments is designed according to the Taguchi technique. The cutting force components are measured by a dynamometer, and then analysis of variance (ANOVA) is carried out to determine the influences of cutting parameters on the given cutting force components. Quadratic mathematical models are developed for prediction of the cutting forces during the hard milling process. To obtain the minimum cutting forces and the maximum MRR, the multi-objective optimization is conducted to find out the optimal machining conditions. In addition, the validation test is also accomplished to demonstrate the accuracy of optimization. The results reveal that the percentage errors between the predicted and experimental values for normal cutting force, feed force, axial force and MRR are 5.46%, 7.38%, 7.87% and 1.06%, respectively.
並列摘要
本文整合應用田口品質工程方法和反應曲面法，分析預硬化SKD61合金鋼硬銑削加工參數對切削力和材料移除率的影響。首先根據田口方法設計與進行一組實驗，藉由動力計測得切削負載，依變異分析法，了解銑削加工參數對切削力的影響，並以二次函數模型歸納其關聯性，可作為後續切削負載預測用。本文並以多目標優化，來獲得最小切削力和最大材料移除率，以找出最佳的加工條件。在驗證測試結果中，呈現此優化的準確性，對於正向切削力、進給力、軸向力和材料移除率之預測值與實驗值之間的百分比誤差分別為5.46％、7.38％、7.87％和1.06％。