翅片整体成形过程的有限元分析

Mechanical analysis of fin's integral shaping process

对翅片切削—挤压整体成形过程中翅片成形机理进行了简要介绍;通过对翅片成形机理进行合理的分析、简化,建立了翅片切削—挤压整体成形工艺的有限元分析模型,结合ansys软件对该过程进行了系统的分析,得到了工件内部应力分布结果,给出了翅片是否脱落的判据,对实际生产过程中刀具结构和工艺参数设计具有重要意义.

Firstly the principle of cutting-extrusion shaping is briefly introduced. Then a FEM modal of cutting-extrusion shaping is built through the reasonable analysis and simplification to shaping mechanism of fin, combined with the ansys software. The process is analyzed systematically, the distributing stress inside of workpiece is gained,and the fin falling off criterion is presented,which are important to the design of cutting tool structure and process parameters.