电焊机2026，Vol.56Issue(3)：38-43,6.DOI:10.7512/j.issn.1001-2303.2026.03.05
增材制造换热设备无损检测能力建设研究
Research on Capacity Construction of Non-Destructive Testing for Additive Manufacturing Heat Exchange Equipment
王宇阳 1冯元 1田雅婧 1何戈宁1
作者信息
- 1. 中国核动力研究设计院,四川 成都 610213||核能增材制造四川省重点实验室,四川 成都 610213
- 折叠
摘要
Abstract
Additive manufacturing(AM)technology is an advanced intelligent manufacturing technology of great strategic value,hailed as one of the core technologies that will lead the Fourth Industrial Revolution.Heat exchange equipment based on additive manufacturing boasts disruptive advantages such as compactness,lightweight design,and freeform fabrication.However,non-destructive testing(NDT)technology remains one of the key bottlenecks restricting the quality assurance of additive manufactured heat exchangers.Firstly,this paper systematically sorts out the typical defect types of additive manu-factured products,classifies them into two categories—planar defects and volumetric defects—and clarifies their formation mechanisms.Secondly,targeting the service characteristics of nuclear-grade heat exchange equipment,it conducts applicabil-ity research on traditional surface testing methods(such as visual testing),traditional volumetric testing methods(such as ra-diographic testing),and new non-destructive testing methods(such as acoustic emission testing),analyzing the performance of each method in terms of defect detection sensitivity,material adaptability,and nuclear service condition compatibility.Fi-nally,preset defect test blocks(with lack of fusion and porosity as typical defects)based on the laser powder bed fusion(L-PBF)process are designed.Through the combined detection of X-ray film method and digital radiography(DR),the quanti-tative relationship between preset defects and actual defects is established,and the detection sensitivity threshold is deter-mined.This research provides key technical support for the construction of the non-destructive testing evaluation system and the assurance of product quality for nuclear-grade additive manufactured products.关键词
增材制造/无损检测/核级换热器/预设缺陷Key words
AM/NDT/nuclear-grade heat exchanger/predefined defects分类
机械制造引用本文复制引用
王宇阳,冯元,田雅婧,何戈宁..增材制造换热设备无损检测能力建设研究[J].电焊机,2026,56(3):38-43,6.
