水下电弧锯切割加工参数优化  

Optimization of Cutting Parameters of Underwater Arc Saw Cutting

作　　者：常青 亢朔琦 杨宏悦 蒋立杰 顾琳[3] CHANG Qing;KANG Shuoqi;YANG Hongyue;JIANG Lijie;GU Lin(China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China;CNNC Engineering Research Center for Fuel Reprocessing,Beijing 100840,China;State Key Laboratory of Mechanical System and Vibration,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国核电工程有限公司,北京100840 [2]中核核燃料后处理工程技术研究中心,北京100840 [3]上海交通大学机械与动力工程学院,上海交通大学振动与系统国家重点实验室,上海200240

出　　处：《电加工与模具》2025年第1期27-31,44,共6页Electromachining & Mould

摘　　要：针对核电设施退役后水下拆解时,现有的水下切割方法切割效率较低或实施难度较大,难以满足切割需求,设计了水下电弧锯切割装置,用材料去除率作为评价指标,进行部分析因试验设计,对影响水下电弧锯切割效率的显著因子进行研究,并对加工参数进行优化。试验结果显示,影响水下电弧锯切割效率的显著因子为切割深度和脉间时间,切割深度越大,脉间时间越短,电弧锯材料去除率越大。当最优切割参数为电流1 000 A、脉宽4 ms、脉间1 ms、切割深度30 mm、主轴转速800 r/min时,水下电弧锯材料去除率超过13 000 mm^(3)/min。Regarding the decommissioning of nuclear power facilities requires underwater dismantlement,where existing underwater cutting methods suffer from low efficiency or high implementation difficulties,failing to meet cutting demands.This paper designs an underwater arc saw cutting device and uses the MRR as the evaluation index.Through partial factorial experimental design,this study investigates significant factors affecting the efficiency of underwater arc saw cutting and optimizes the machining parameters.The results show that the significant factors influencing the efficiency are the cutting depth and inter-pulse time.Greater cutting depths and shorter inter-pulse times lead to higher MRR for the arc saw.The optimal cutting parameters are a current of 1 000 A,pulse width time of 4 ms,inter-pulse time of 1 ms,cutting depth of 30 mm,and spindle speed of 800 r/min,under which the material removal rate of the underwater arc saw exceeds 13 000 mm^(3)/min.

关 键 词：水下电弧锯切割 高速电弧放电加工 部分析因试验 材料去除率 

分 类 号：TG661[金属学及工艺—金属切削加工及机床] TG484