客车前后围上顶内饰板冲压工艺分析及模具设计

Analysis of roof ceiling interior panel stamping technology of bus front and rear wall and mold design

简要分析了客车前后围上顶内饰板冲压工艺，重点论述了模具结构及工作原理。

Briefly analyse the roof ceiling interior trimming stamping technology of bus front and rear wall, mainly discuss the mold structure and working principle.