多道管子无心缩口模设计

Necking Mould Design of Multitrack Pipes

以消音器弯管多道缩口为例,详细剖析管子在缩口过程中的应力变化与成型,同时设 计了一副针对多道缩口的缩口模,进一步阐述了多道缩口模的设计要点、特别是对模具材料的 正确选取。

Taking multitrack necking mould of silencer siphon as an example, the stress variation and forming of pipe in necking process were analyzed. A set of necking mould for multitrack necking was also designed. The design key points were elaborated,specially choosing mould materials.