切削加工表面分形机理的研究

On Fractal Mechanism of Machining Surface

工程粗糙表面的微观形貌具有统计的自相似分形特性 ,本文明确给出了其重要的分形指标—分维数的物理含义 ,并将表面的分形研究从理论上和实际上深入到机械加工工艺过程中去 ,以磨削为例 ,建立起有关磨削参数与磨削表面分形参数之间关系的理论模型 ,为在磨削加工中 ,通过控制有关磨削参数和磨削条件 ,以达到最优维数打下了理论基础。本论文的研究可望在提高工程表面的使用性能以及降低加工成本等方面发挥较大的作用。

The meaning of fractal dimension, which is important in fractal research, is explained first in this paper. The theoretical model of the relationship of grinding parameters and grinding surface fractal parameters is established. The model form the basis for the achievement of optimal dimension in grinding process that is controlled by concerned grinding parameters and grinding condition.