南澜国际大学机械学院毕业设计说明书题目：减速器箱体焊接生产工艺规程编制学生姓名：专业：指导教师：职称：毕业设计说明书提交日期目录摘要..................................................................................................................................................1引言..................................................................................................................................................2第一章减速器箱体的母材选用及加工.......................................................................................31.1母材的选用....................................................................................................................31.2钢材的矫正原理及方法.................................................................................................31.3划线..................................................................................................................................41.4号料................................................................................................................................41.4.1号料的方法............................................................................................................51.4.2样板的分类............................................................................................................51.4.3号料的作用............................................................................................................51.5成形方法............................................................................................................................51.6气割圆筒..........................................................................................................................61.7钻孔................................................................................................................................61.8Q235的热处理..............................................................................................................6第二章减速器箱体的装配工艺...................................................................................................72.1坡口形式与焊接技术.................................................................................................72.1.1坡口形式...........................................................................................................72.1.2坡口的加工方法.................................................................................................82.2装配................................................................................................................................8第三章减速器箱体的焊接工艺.................................................................................................93.1Q235的焊接性................................................................................................................93.2焊接方法及设备的选择.................................................................................................93.2.1首选：手工电弧焊.............................................................................................103.2.2次选：CO2气体保护焊.....................................................................................143.2.3再选：熔化极活性气体保护焊（MAG焊）..............................................183.3、焊前的准备................................
