摘要
从Ｋｒｏｎｅｎｂｅｒｇ公式出发，推导出立铣加工过程的基本切削力数学模型；用Ｇａｕｓｓ－Ｌｅｇｅｎｄｒｅ数值积分计算式，采用极值探索法，由一系列实验值确定出切削力模型中的系数与指数项常数；由Ｓｔａｂｌｅ假设计算Ｆｘ和Ｆｙ的合力与Ｆｚ所成的夹角ψ；计算Ｆｘ和Ｆｙ的合力与切向力Ｆτ所成的夹角θ时，采用一次线性近似．实验证明，所建切削力模型与实验值符合程度较高，便于在实际加工的监控中使用．最后，对立铣过程进行了两种模式分类。
In this paper, a basic mathematical model of the cutting force in end milling is developped based on the Kronenberg equation. The coefficient and exponential constants of the model are determined by Gauss Legendre integral formula and the method of extremum between the experimental value and calculated one. ψ and θ of the model are acquired from the experiments, where ψ is calculated by the Stable Hypothesis, and θ is by linear approximation from the rotational angle. It has been proved that the experimental and calculated data are very close under different machining conditions. Experiments have demonstrated the usefulness of the model in detecting and controlling the end milling process. In the end, the method of classifying and analysing for end milling process is proposed.
出处
《天津大学学报》
EI
CAS
CSCD
1996年第5期691-698,共8页
Journal of Tianjin University(Science and Technology)
关键词
切削力
建模方法
立式铣削
铣削
end milling, cutting force, cutting model, optimization
