面向制造的灌水器产品快速定型与模具CAE研究  

Rapid Finalization and Mold CAE for Manufacture-oriented Emitter Products

作　　者：魏正英[1] 吴松坡[1] 刘霞[1] 唐一平[1] 卢秉恒[1] 

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,西安710049

出　　处：《农业机械学报》2011年第5期56-62,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家高技术研究发展计划(863计划)资助项目(2006AA100214-5);国家自然科学基金资助项目(50975227);长江学者和创新团队发展计划资助项目(IRT0646)

摘　　要：对3种滴灌灌水器进行了线性回归分析,得到了收缩率和壁厚的数学模型,为灌水器滴片结构优化提供了理论依据;通过注塑成型工艺参数的正交试验设计得到了最佳注塑工艺参数;由极差与方差分析得到影响尺寸精度的主要因素,为实际生产提供参考依据。针对迷宫灌水器微细流道精细复杂的特点,应用快速成型RP与数控线切割NC相结合的方法制作精密原型,结合快速模具RT技术进行灌水器试制,并通过灌水器水力性能和抗堵性能试验对产品进行了性能验证。Linear regression analysis of the three types of emitter was done,the mathematical model of the volumetric shrinkage and the wall thickness were obtained,the theory for optimization was provided,orthogonal test for investigation of the influence of processing parameter was designed,and the optimal injection molding process parameters were gained.Range analysis and analysis of variance were used to find out the main factors which affected the dimensional accuracy,and a theoretical basis for the production to ensure product dimensional accuracy was provided.According to the complex features of labyrinth emitter mini-channel,rapid prototyping and CNC wire cutting were used to produce precise prototype.With rapid tooling and the technology of rapidly producing,prototype emitter was manufactured.The performance of the product was verified by the hydraulic characteristics and clogging experiments.

关 键 词：灌水器 数控线切割 快速成型 快速模具 

分 类 号：S277.95[农业科学—农业水土工程]