Mainly introduce the ways,gists and processes of a dissymmetry hollow extruding section-material mold,and expound the design structure features of this section-material mold.

• 主要介绍了在铝合金的挤压型材中,非对称空心挤压型材模具的设计方法、设计要点及设计过程,阐述了此类型材模具的设计结构特点。