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The stochastic analysis of working bodies moving at a finish processing in vibrating granular environment

100%

Branspiz Y. A. , Lubenskaya L. M. , Branspiz E. V.

Vibrations in Physical Systems

2002

tom Vol. 20

112--113

Niezawodne i wydajniejsze wykończenie powierzchni plastikowych części 3D

100%

Świat Obrabiarek i Narzędzi

2021

tom R. 16, nr 3

Study on the interaction characteristics of acrylonitrile butadiene styrene and UV laser

84%

Son S. , Lee D.

Archives of Civil and Mechanical Engineering

2020

tom Vol. 20, no. 3

155--166

3D printing technology is currently used in various fields. Precision is also becoming more important as the usage of the 3D printing increases. However, the precision of the 3D printing is still low due to limitations of manufacturing methods. Especially, the surface roughness and quality are inconsistent. While the post-treatment is necessary, there are no systematic post-treatment methods. Thus, using the laser for the post-treatment of 3D printing would be a good option because it has many advantages for precision engineering. To be used for the post-treatment process, it is essential to understand the interaction characteristics between the laser and the 3D printing materials. Therefore, this study uses an UV pulsed laser and the acrylonitrile butadiene styrene (ABS), which is the most popular material for 3D printing, to understand the interaction characteristics. Furthermore, the effect of surface roughness on the interaction characteristics is also studied. The ABS specimens are prepared by an acetone fumigation technique and CNC milling. The laser is applied by varing laser pulse energy (50–340 μJ) on the ABS specimens. As the surface roughness decreases, it is confirmed that laser and ABS interaction have a certain pattern. For the specimen prepared by the acetone fumigation technique, Heat Affected Zone decreases with decreasing the laser pulse energy. The specimen prepared by end milling requires higher laser ablation threshold.

The influence of abrasive finishing conditions on the surface texture of Inconel 939 elements made using the 3D printing LPBF method

67%

Wojtiuk E. , Radziejewska J. , Marczak M.

Welding Technology Review

2024

tom R. 96

34--40

The article presents research on finishing treatment applied to components made of Inconel through 3D printing by Laser Powder Bed Fusion method. Vibration-abrasive machining was carried out using a supporting fluid and various shapes of abrasive. The effects of the processing conditions were analysed based on the surface roughness of the samples and mass loss. The obtained collective results were subjected to comparative analysis with the effects of vibratory-abrasive processing without the use of a processing fluid, as presented in the article. The research has shown that using vibration-abrasive processing, it is possible to reduce the height of surface irregularities by more than three times after four hours of treatment. The intensity of processing was the highest in the first hour of the process. The lowest roughness heights Ra = 1.8 μm were obtained using ceramic balls in the presence of a supporting fluid.