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并行工程下基于特征的零件可制造性及其评价方法研究


□ 刘红军 莫 蓉 范庆明 万 能

  (西北工业大学, 西安 710072)
  
  摘要:
  结合并行工程的思想,对零件可制造性进行较详细的分析,提出并行工程环境下基于特征的可制造性分析方法,研究建立基于特征的可制造性零件定义模型及评价体系。阐述了基于特征的可制造性的评价方法,认为可制造性评价是一个多层次的决策问题,建立了基于制造约束规则的加工可行性定性评价和基于模糊综合评判的加工可行性定量评价两种评价方法,并给出了解法。利用上述研究方法,全面合理地对零件的可制造性进行评价和反馈,从而指导产品设计。最后以涡轮叶片榫头特征的可制造性分析为应用实例,说明了该方法的有效性和实用性。
  关键词:并行工程; 特征技术; 零件可制造性; 评价方法
  中图分类号: TP391.72文献标志码:A
  文章编号:10013695(2009)03098004
  
  Research of manufacturability and evaluation methods of partsbased on feature under concurrent engineering environment
  
  LIU Hongjun, MO Rong, FAN Qingming, WAN Neng
  
  (Northwestern Polytechnical University,Xian 710072,China)
  
  Abstract:
  This paper analyzed part manufacturability under concurrent engineering (CE) environment in detail. Proposed a system framework of design for manufacturing (DFM)according to CE ideas. Established an evaluation system for part manufacturability featurebased and a definition model of part featurebased.This paper intended to present the evaluation method for part manufacturability featurebased. It pointed out the evaluation was typical decision making process of multiple level. Proposed two methods that were qualitative evaluation of product machinability based on rule of manufacturing restriction and quantitative evaluation of product machinability based on fuzzy judge of integrative and gave the solutions. Using above research method, product design could be guided according to feedback information by evaluating the part manufacturability. Finally,gave an example of rabbetfeature manufacturability of a turbine blade to show the method available and practicable. ......
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