At this point, it is necessary to set up the component to resist the internal force of the film surface, which can be a tubular metal frame, but also a thin film gas rib.
The deformation of nets is very big at narrow location due to less metal here when same width rib was filled with different width billet.
使用非等宽度毛坯情况下，窄板处金属体积少，网格畸变严重。
3
The experimental results show that isothermal precision forming technology with local loading is effective to control metal flow and improve forming quality of rib-web parts.