激光填丝焊接焊缝成形质量控制系统研究  

Study on the control system for the weld appearance quality during laser welding with filler wire

作　　者：杨文广[1] 刘春[1] 陈武柱[1] 张旭东[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《激光技术》2003年第3期193-196,共4页Laser Technology

基　　金：国家自然科学基金;973国家重点基础研究规划资助项目

摘　　要：研究了激光填丝焊接中相关的工艺参数对焊缝成形质量的影响。比较了对接间隙宽度发生变化时控制送丝速度或焊接速度两种情况下获得焊缝成形的质量。结果表明 ,间隙较小时调节送丝速度较好 ,间隙宽度较大时则调节焊接速度为佳。针对高精度焊接条件下焊缝成形质量控制要求 ,设计了一套以 80c5 1单片机为核心的双单片机系统 ,该系统在焊接过程中可根据坡口间隙宽度选择性地实时调节送丝速度或焊接速度 ,以保证激光填丝焊接全过程获得良好的焊缝成形质量。The effect of the parameters on weld appearance quality during laser welding with filler wire is studied in the article. The appearance quality obtained by controlling the wire feeding speed is compared with that obtained by controlling welding speed during laser welding with variable gap-width.The result shows that it is better to control wire feeding speed for narrower gap-width,otherwise it is better to control welding speed for wider gap-width. To meet the weld appearance quality requirement during high accuracy welding process,the double MCU system based on 80c51 is developed,which can adjust the welding parameters by gap-width during welding process to assure benign weld appearance quality during laser welding with filler wire.

关 键 词：激光填丝焊接 焊缝成形质量 双单片机系统 

分 类 号：TG456.7[金属学及工艺—焊接]