客车三段式车架焊接工艺浅析

Briefly analysis three sections frame welding technology of bus

从控制焊接变形人手，介绍了客车三段式车架焊接工艺方案及工装，总结了三段式车架焊接工艺的优点。

Starting from welding deformation control,introduce welding technology scheme and tool of bus three sections frame,summarize the advantage of wedling technology of three sections frame.