研究目的
Investigating the real machine capability in Laser Powder Bed Fusion technology through an Axiomatic Design approach to develop an improved test artifact design for reliable machine performance check.
研究成果
The application of Axiomatic Design for the re-design of a test artifact for LPBF machine capability assessment led to significant improvements in time, cost, and outcome reliability. The new design reduces the superposition of effects, ensuring robust and reliable results for machine performance check.
研究不足
The study focuses on single-laser LPBF systems, which currently represent the most widespread industrial application of this technology. The design trade-off involves a loss of information compared to the reference design, but this does not affect the test artifact effectiveness.
1：Experimental Design and Method Selection:
The study employs an Axiomatic Design approach to analyze and redesign a test artifact for LPBF machine capability assessment. The methodology involves a structured decision-making process to address specific customer needs.
2：Sample Selection and Data Sources:
The analysis is based on a well-known test artifact proposed by NIST, which is used as a reference for comparing different AM systems.
3：List of Experimental Equipment and Materials:
The study involves the use of LPBF systems for producing the test artifact and Coordinate Measuring Machine (CMM) for inspecting the artifact.
4：Experimental Procedures and Operational Workflow:
The process includes the analysis of the NIST test artifact from an AD standpoint, identification of criticalities, and development of a new design based on reviewed Customer Needs. The new design is then implemented and tested.
5：Data Analysis Methods:
The inspection method consists of measuring features diameter and position using CMM, with a focus on robustness and independence of measurements.
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