The process of available gas-assisted co-extrusion technological and the rough structure of the die are presented,and the entity and finite model of the gas-assisted co-extrusion are given.

• 介绍了现有气辅共挤成型的流程和气辅共挤口模的大致形状,并提出了气辅共挤成型工艺的实体和有限元模型。