基于加工要求和制造网络稳定性评价的特征加工方法决策

Decision-Making of Feature Process Method Based on Machining Requirements and Manufacturing Network Stability Evaluation

以往的特征加工方法决策过程大多都只考虑产品零件的加工要求,忽视所选加工方法对企业当前生产线网络产生的影响,造成新加工任务插入后,部分加工设备的加工任务过重,部分设备又没得到有效利用.为了解决以上问题,提出了一种基于加工要求和制造网络稳定性评价的特征加工方法的决策方法,揭示了影响特征加工方法决策的主要因素,并以孔特征为例建立了决策因素与加工方法间的模糊映射关系.通过应用模糊综合评价法筛选出了满足特征加工要求的常用加工方法;应用复杂网络理论对企业的生产线网络进行建模,利用网络的稳定性指标对已筛选出的特征加工方法进行了评价,并通过实例验证说明了所提方法的可行性.

The traditional decision-making process of feature process methods had mostly considered the machining requirements,ignoring the effect of the production line network on enterprises,which resulted in the overloading of some machines and the idling of other machines.To solve the above problems,a decision-making of feature process method based on machining requirements and manufacturing network stability evaluation was proposed.The main influencing factors on the decision-making of the feature process method was revealed.With hole feature,for example,the fuzzy mapping relations between decision factors and processing methods was established,and the feature process method which conforms with the processing requirements was screened out by using the fuzzy comprehensive evaluation method.Then,a enterprise manufacturing network model was established by applying the complex network theory.In addition,the selected methods were evaluated by using the network stability index.Experimental results verifies the effectiveness of the proposed method.