Simultaneous extraction of profile and surface roughness of 3D SLM components using fringe projection method

Terry Yuan Fang Chen, Yu Lung Lo, Ze Hong Lin, Jui Yu Lin

研究成果: Article同行評審

摘要

Purpose: The purpose of this study was expected to simultaneously monitor the surface roughness of each solidified layer, the surface roughness of the metal powder, the outline of the solidified layer, and the height difference between the solidified layer and the metal powder. Design/methodology/approach: In the proposed approach, color images with red, green and blue fringes are used to measure the shape of the built object using a three-step phase-shift algorithm and phase-unwrapping method. In addition, the surface roughness is extracted from the speckle information in the captured image using a predetermined autocorrelation function. Findings: The feasibility and accuracy of the proposed system were validated by comparing it with a commercial system for an identical set of samples fabricated by a selective laser melting process. The maximum and minimum errors between the two systems are approximately 24% and 0.8%, respectively. Originality/value: In the additive manufacturing field, the authors are the first to use fringe detection technology to simultaneously measure the profile of the printed layer and its surface roughness.

原文English
頁(從 - 到)789-801
頁數13
期刊Rapid Prototyping Journal
28
發行號4
DOIs
出版狀態Published - 2022 3月 29

All Science Journal Classification (ASJC) codes

  • 機械工業
  • 工業與製造工程

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