目前我国的型材挤压模具设计水平仍停留在经验设计阶段,模具寿命偏低.为了提高挤压模具的设计水平,实现模具设计的实时化、自动化、科学化与集成化,提出了挤压模具智能CAD新概念,并介绍了其系统构成.“,”The designing level of seCtion extrusion dies in our country still stayS in experientialstage at present, every die life is too low. In order to improve the