基于堆焊-电解的复合3D加工技术  

Hybrid 3D processing technology based on build-up welding and electrolytic machining

作　　者：张禹[1] 罗震[1,2] 谈辉[1] 段瑞[1] 张成大[3] 

机构地区：[1]天津大学材料科学与工程学院,天津300072 [2]高新船舶与深海开发装备协同创新中心,上海200240 [3]大庆油田有限责任公司第二采油厂,大庆163461

出　　处：《焊接学报》2015年第8期39-42,115,共4页Transactions of The China Welding Institution

基　　金：国家自然科学基金资助项目(50975197;51275342)

摘　　要：建立了基于堆焊-电解的复合3D成形系统,包括弧焊机器人、数字化焊机以及电解加工设备等.通过机器人堆焊对工件进行快速成形,进而采用电解加工设备对其进行精密修形,得到与预设三维实体模型尺寸一致的成品零件.提出了一种名为螺旋递进重熔的路径规划方式,可以很好的解决堆焊成形中的塌陷问题.针对低碳钢与铝合金两大类材料进行3D成形工艺试验,发现分别采用氯化钠电解液以及磷酸硝酸钠混合电解液进行电解加工可以得到表面光洁的零件.结果表明,利用堆焊-电解复合3D加工系统可以在无模具的条件下制备尺寸精确、表面光洁的零件.A hybrid 3D processing system based on buildup welding and electrolytic machining was established in this paper,which involved an arc welding robot,a digital welder and electrolytic machining device. Rough cast was built up by the robot,and then modified by the electrolytic device to get dimensional accuracy. A processing path planning called screw overlap method was developed to deal with the collapse of welding bead.Using sodium chloride and monarkite solution as electrolyte can make mild steel and aluminum alloy workpiece with a smooth surface. Finally,the as-prepared products possessing dimensional accuracy and smooth surface was manufactured by the build-up welding and electrolytic machining hybrid processing system.

关 键 词：弧焊机器人 3D成形 路径规划 电解加工 

分 类 号：TG455[金属学及工艺—焊接]