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切削参数是切削过程优化最重要的控制因素,为了研究切削参数的多目标优化问题,本文采用了线性目标规划理论,建立了一个以最大金属切除率和最小工件表面粗糙度作为优化指标的多目标优化模型,并且以切槽车刀的车削为实例,采用目标单纯形法求得其最优解,确定了每一个目标函数与事先给定的对应目标值的逼近程度。结果表明,这种模型可以将决策者指定的目标与数学模型融合在一起。为实际生产中,根据各项指标的目标值来选择最优切削用量,提供了一种新的理论方法。
In order to study the multi-objective optimization problem of cutting parameters, a linear target programming theory is used to establish a multi-objective model with optimization of the maximum metal removal rate and minimum workpiece surface roughness Optimize the model. Taking the turning of grooving turning tool as an example, the optimal solution is obtained by the target simplex method, and the approximation degree of each objective function and the corresponding target value given in advance is determined. The results show that this model can be the decision-makers to specify the goals and mathematical models together. For actual production, according to the target value of each target to select the optimal cutting amount, provides a new theoretical method.