Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion

Lee T. Auyeskhan U. Kim N.-H. Kim D.-H.
November 2023 Multidisciplinary Digital Publishing Institute (MDPI)

Metals
2023 #13 Issue 11

In this study, the feasibility of commercially pure (CP)-Ti bipolar plates for fuel cells were assessed by designing, manufacturing, and evaluating thin plates fabricated through the laser powder bed fusion (L-PBF) technique. The width, height, and thickness of thin CP-Ti plates were carefully considered in its design to ensure comprehensive evaluation. The maximum displacement was measured through blue light scanning in accordance with the building direction. The finite element model and experimental results showed that the building layer per volume has a linear relationship with the maximum displacement and maximum residual tensile stress along the building direction. Thin plates with a high aspect ratio (198 × 53 × 1.5 mm) had the lowest maximum displacement (0.205 mm) when building in the height direction and had a high correlation coefficient with the finite element model (0.936). Proper aspect ratio design and building strategy enable highly accurate manufacturing of CP-Ti thin plates for fuel cell systems.

additive manufacturing , blue light scanning , deformation , finite element analysis , thin plates

Text of the article Перейти на текст статьи

Advanced Cutting Tool and Machining Center, Daegu Mechatronics & Materials Institute, Daegu, 42715, South Korea
3D Printing Manufacturing Process Center, Korea Institute of Industrial Technology, Ulsan, 44776, South Korea
Department Mechanical and Aerospace Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
Department Intelligent Systems and Cybersecurity, Astana IT University, Astana, 010000, Kazakhstan

Advanced Cutting Tool and Machining Center
3D Printing Manufacturing Process Center
Department Mechanical and Aerospace Engineering
Department Intelligent Systems and Cybersecurity

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026