基于STEP标准的材料选择信息模型研究

采用STEP标准,建立了支持产品全生命周期的材料选择信息模型,此模型以材料数据手册为依据,根据工程设计的实际需要给出材料的物理性能、力学性能、工艺性、材料价格等信息.并提出工程设计过程中不同设计阶段的材料选择方法:在方案设计阶段,根据经济、工作状况的分析选择关键件牌号、一般零件材料类型;在初步设计阶段,根据工艺性、工作环境、强度分析选择具体材料牌号;详细设计阶段对材料进行强度、工艺性分析验证.并提出了材料的工艺性评价和经济性评价方法. 

Material Selection Information Model Study Based on STEP Standard

Material selection information model was established for product lifecycle with STEP standard. The information model gives physical property,machine property,technology property,material price for the reality requirement by material data manual. The paper puts forward material selection ways of different design step. Key part's material and general part's material classes are selected according to economics and workcondition analysis in plan step. Part's material is chosen on the basis of technology property,workenvironment and strength analysis in initial design step. Materials are examined by strength and technology property analysis in detail design step. The paper puts the ways of technology property and economics evaluation.