公开(公告)号：US20240345035A1

公开(公告)日：2024-10-17

申请号：US18374628

申请日：2023-09-28

Applicant: CHINA NIL RESEARCH CENTER FOR PROFICIENCY TESTING

Inventor： Liang ZHANG ,  Haizhou WANG ,  Lingtian TANG ,  Yongyan CHEN

IPC: G01N29/26 ,  G01N1/28 ,  G01N23/046

CPC classification number: G01N29/26 ,  G01N1/28 ,  G01N23/046 ,  G01N2291/265

Abstract: The invention relates to a method for preparing simulated samples for non-destructive testing of metal materials, which can carry out reverse batch copying of cavity-type defect samples, specifically: obtaining metal samples with natural and real cavity-type defects; using high-resolution X-ray industrial CT scans the sample to obtain relevant information about cavity defects in the sample; using 3D laser printing method to batch prepare new samples with combined defect characteristics that meet defect consistency; using high-resolution X-ray industrial CT to obtain the cavity defects prepared by printing are reviewed, inspected, and evaluated with the original cavity defects to verify that the printed samples meet the requirements of cavity defect consistency; save cavity defect information, scanning parameters, powder composition and printing process parameters. The method of the invention can accurately obtain defect information, can meet various non-destructive testing requirements, can be replaced with each other, and the examination and evaluation processes can be parallelized, thereby improving the efficiency.