连接柄3D打印成形质量控制研究  

Research for 3D printing molding quality of combined spider

作　　者：张丽英 秦国鹏 ZHANG Liying;QIN Guopeng(CNNC Jianzhong Nuclear Fuel Co.,Ltd.,Yibin 644000,Sichuan pro.,China)

机构地区：[1]中核建中核燃料元件有限公司,四川宜宾644000

出　　处：《焊接技术》2022年第12期1-5,I0007,共6页Welding Technology

摘　　要：连接柄是HPR1000控制棒组件的关键构件,属要求苛刻的核电堆芯产品。为突破国产化元件制造中的国际专利保护制约和技术屏障限制,加快元件激光3D打印制造产业化进程,有必要对连接柄3D打印制造中的质量影响因素进行归纳并研究相应的质量控制措施。激光3D打印属新兴的金属增材制造技术,其质量控制方法与“减材制造”的传统机械加工方法相比,工件热应力与变形情况复杂,质量影响因素多,过程不易控制。文中从原材料输入、环境及打印边界条件、设备因素、打印过程控制等方面,介绍了连接柄激光3D打印制造质量控制的初步研究成果。本研究对保证自主化控制棒组件产品质量和核电安全运行具有重要意义。The combined spider,whitch belongs to the most demanding nuclear core products,is one of the key core products of the HRP1000 control rod assembly.In order to break through the restrictions of international patent protection and technical barriers in the domestic nuclear fuel manufacturing and accelerate the industrialization process of nuclear fuel laser 3 D printing manufacturing,it is necessary to summarize the quality influencing factors in the 3 D printing manufacturing of parts and study the corresponding quality control measures.Laser 3 D printing is a new metal additive manufacturing technology.Compared with the traditional machining method of "reducing material manufacturing",its quality control method is more complex in thermal stress and deformation of workpiece,and has many quality influencing factors,so the process is not easy to be controlled.In this paper,the primary research results of laser 3 D printing quality control method for combined spider is introduced from four aspects:raw material input control,environment and printing boundary condition control,equipment maintenance control and printing process control.This study is of great significance to ensure the quality of self-developed nuclear fuel products and the safety of nuclear power operation.

关 键 词：连接柄 控制棒组件 3D打印 成形质量 核级不锈钢 

分 类 号：TG456.7[金属学及工艺—焊接]