一种陶瓷材料磨削加工性的综合评判方法

磨削是目前工程陶瓷的主要加工方法 ,本文以陶瓷材料的物理、力学性能为依据 ,应用模糊数学中的模糊综合评判原理 ,建立了工程陶瓷材料磨削加工性的二级模糊综合评判模型 ,提出了一种对工程陶瓷材料磨削加工性进行综合评判的新方法。选择陶瓷材料的 3个力学性能参数构成因素集合 ,根据提出的评判方法 ,对 4种典型工程陶瓷材料的磨削加工性进行评价 ,并根据综合评价指标进行排序。结果表明 ,该方法的评判结果合理 ,评价方法易于运用计算机来处理 ,简单实用。此方法将工程陶瓷材料的可加工性的评价建立在材料性能参数分析的基础上 ,在磨削加工之前确定材料的磨削加工性。评价结果对工程陶瓷材料的加工过程中工具和工艺参数的确定具有重要指导作用。

A Comprehensive Evaluation Method for Grindability of Ceramic Materials

Grinding is the main machining method for engineering ceramics. The physical and mechanical properties of ceramics were taken as set of available alternatives. Fuzzy comprehensive evaluation principle was applied to establish a model for grindability evaluation of engineering ceramics. A new method is proposed for machinability evaluation of engineering ceramic materials. As an example, three mechanical parameters of ceramic materials were selected to be the set of alternatives for machinability evaluations. Grindability of four typical engineering ceramic materials was evaluated, and ceramic materials were ranked in order of comprehensive evaluation index. The results show that the fuzzy evaluation is rational, and calculating method is simple and easy. This method evaluates grindability of ceramic materials according to property parameters other than grinding tests. Grindability can be evaluated in advance of ceramics machining processes. Moreover, the machinability evaluation will be an important reference for determination of tools and machining parameters during ceramic grinding processes.