简要介绍18 m 长大型低入口城市客车车身骨架总成的结构特点及工艺要求。通过结构强度和焊接变形分析,从工艺角度对焊接变形进行控制。关键词:城市客车; 低入口; 客车车身; 焊接变形Abstract :This article contains the brief int roduction about the body f rame assembly characteristics and process re2 quirement s of the 18 m2length low ent ry bus. And through analyzing the st ructure st rength and welding distortion , it also present s the measures to cont rol the welding distortion f rom the technology aspect .Key words :city bus ; low ent ry ; bus body ; welding distortion
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