机器人CMT焊接工艺研究 机械制造专业VIP专享VIP免费

中文摘要机器人CMT焊接工艺研究本文利用焊接机器人和福尼斯CMT焊机对镀锌板进行堆焊，搭接和对接，分析CMT机器人焊接焊接得到板材的外观，成型，硬度，气孔产生的原因，焊接变形产生的原因。得到由于冷金属过渡焊接的特殊的抽送丝方式，其焊接热输入量更小，在同样焊接参数下，冷金属过渡焊接比MAG焊的飞溅更少，熔深更小，且硬度值要明显低于MAG焊。但是在搭接镀锌板材时，由于无间隙，电弧力过大，弧长修正系数过大，焊接速度过快等原因，仍会出现气孔，对接时由于板材膨胀收缩不均匀仍会出现焊接变形。关键词：机器人；冷金属过渡；镀锌板I毕业设计说明书（论文）英文摘要TheResearchOnWeldingProcessOfRobotByColdMetalTransferInthispaper,thegalvanizedsheetwassurfaced,lapped,buttconnectedbyweldingrobotandfroniousTPS5000CMTweldingmachine.Analysistheappearance,molding,hardnessofthesheetof,andthereasonsfortheformationofpores,thereasonsfortheweldingdeformation.Duetothespecialwirefeedingmodeofcoldmetaltransferwelding,thereislessweldingheatinput.Underthesameweldingparameters,coldmetaltransferweldinghassmallerpenetrationandlessspatterthantheMAGwelding,what’smore,thehardnessvalueofCMTweldingissignificantlylowerthantheMAGwelding.Butwhenlappingthegalvanizedsheet,duetonogap,toolargearcforceandarclengthcorrectionfactorandotherreasons,porealwaysexists,buttweldingdeformationoccursduetounevenexpansionandshrinkoftheplate.Keywords:ColdMetalTransfer;weldingrobot;galvanizedsheet;II目录前言.................................................................................................................................1第一章绪论.....................................................................................................................21.1焊接机器人.............................................................................................................21.2镀锌板.....................................................................................................................21.3冷金属过渡焊接技术............................................................................................31.3.1冷金属过渡技术介绍..................................................................................31.3.2冷金属过渡技术的应用..............................................................................41.4本文研究目的与内容............................................................................................51.4.1研究目的.......................................................................................................51.4.2研究内容.......................................................................................................5第二章试验材料和方法.................................................................................................62.1试验仪器与药品....................................................................................................62.1.1试验仪器......................................................................................................62.1.2焊接材料......................................................................................................72.2试验准备.................................................................................................................82.3试验方法.................................................................................................................82.3.1机器人CMT堆焊试验...................................................................