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3D printer

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1.3D printer new reseach or application

1-1 Process support breakthrough：

3D printing process non-destructive evaluation 90% detection rate

The first study on 3D printing technology published in Science in 2023 was published on January 5. A research team led by Tao Sun, associate professor of Materials Science and Engineering at the University of Virginia, has made the discovery that a method to detect keyhole generation by integrating experimental data, multi-physics simulation, and machine learning is able to capture the unique thermal features associated with keyhole generation with sub-milliseconal time resolution and a 100% prediction rate.
Researchers at Oak Ridge National Laboratory have developed a way to combine post-inspection data from printed parts with information collected by sensors during the printing process, and the combined data teaches machine learning algorithms to identify defects in products. This new method achieves a 90% detection rate, which is consistent with the defect detection probability of traditional evaluation methods, thus saving time and reducing costs.

1-2 New technology:

Unsupported metal 3D printing

In recent years, through years of continuous research and development and repeated trials, Jinshi 3D core technology team, under the leadership of chief scientist Professor Yang Yongqiang, has made important breakthroughs in the field of unsupported metal 3D printing: Breaking the 45° limit and developing a universally applicable unsupported low Angle forming method to achieve the effective forming of industrial parts in large overhang areas, has successfully printed unsupported metal impellers and other samples with the lowest Angle of 15°, providing application solutions for many industries.

In February 2024, Professor Yang Yongqiang and Professor Wang Di of South China University of Technology, the core scientific research team of Jinshi 3D, jointly published an invited paper entitled "Research on the Method and process of Laser Selective Melting Forming of Low-angle Unsupported Structures" in the journal of China Laser. The forming mechanism, the surface quality of the sample and the applicability of the forming method of unsupported metal printing were investigated, and the actual industrial parts were used for printing verification.