Simulated Metal Specimens for NDT via 3D Printing
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Solution Overview
Problem
Traditional methods fail to produce multiple metal samples with consistent cavity defects, essential for non-destructive testing, as each defect is unique and cannot be replicated, limiting the efficiency and comparability of assessment and evaluation processes.
Innovation Solution
A method involving high-resolution X-ray industrial CT scanning and 3D laser printing to batch produce simulated samples with consistent defect characteristics, allowing for the creation of multiple samples with complex and realistic defect simulations, enabling improved evaluation and training of non-destructive testing personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional machining methods are used to prepare cavity defect samples, then each sample can be manufactured, but multiple samples with consistent defect characteristics cannot be obtained
Solution Approach 1:
The patent uses 3D printing technology to create multiple copies of defect samples based on a digital model of a single reference sample. This allows identical defect characteristics to be replicated across multiple samples, solving the consistency problem while enabling batch production for improved efficiency
Solution Approach 2:
The patent changes the manufacturing approach from traditional machining to 3D printing, which allows precise control of defect parameters through digital modeling. This parameter control enables consistent reproduction of defect characteristics across multiple samples
2Reliability
If the same defect sample is used for all inspection assessments, then comparability is maintained, but inspection can only be carried out in sequence reducing parallelism and efficiency
Solution Approach 1:
The patent creates multiple identical defect samples through 3D printing, allowing multiple inspectors to simultaneously assess identical defect characteristics. This maintains comparability while enabling parallel assessment processes that reduce total assessment time
Solution Approach 2:
The patent prepares multiple defect samples in advance through batch 3D printing before the assessment process begins. This preliminary preparation eliminates the need for sequential sample production during assessment, enabling parallel processing and reducing time loss
3Ease of manufacture
If traditional methods are used to prepare defect samples, then manufacturing is simple, but defect characteristics cannot be consistently replicated
Solution Approach 1:
The patent uses 3D printing to copy the exact defect geometry from a reference sample, ensuring consistent defect size and characteristics across multiple samples while maintaining ease of manufacture through automated printing processes
Solution Approach 2:
The patent replaces traditional mechanical machining methods with 3D printing technology, which provides better precision for complex defect geometries while maintaining ease of manufacture through digital modeling and automated printing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures consistent cavity defect samples, enhancing the efficiency and comparability of non-destructive testing assessments and evaluations by producing multiple samples with identical defect characteristics, improving the complexity and realism of test samples.
Implementation Method 1
Using high-resolution X-ray industrial CT to scan the sample to obtain relevant information about cavity defects in the sample
Implementation Method 2
Using 3D laser printing method to batch prepare new samples with combined defect characteristics that meet the consistency of cavity defects
Data Source
AI summary
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.