Evaluation of the influence of selected parameters of Selective Laser Sintering technology on surface topography

Kundera, C.; Kozior, Tomasz

doi:10.1088/1742-6596/1183/1/012002

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…AM products' geometry and mechanical properties depend on technological parameters. Kundera et al analyzed the influence of these AM parameters, especially Selective Laser Sintering (SLS), on the quality of the resulting geometric surface texture [8]. They also studied mechanical properties of models made of polyamide PA 3200 manufactured by the SLS [9].…”

Section: Introductionmentioning

confidence: 99%

Design and Behavior of Lightweight Flexible Structure with Spatial Pattern Reducing Contact Surface Fraction

Rybansky,

Marsalek,

Sotola

et al. 2023

Polymers

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Flexible structures are increasingly important in biomedical applications, where they can be used to achieve adaptable designs. This paper presents a study of the design and behavior of 3D-printed lightweight flexible structures. In this work, we focus on the design principles and numerical modelling of spatial patterns, as well as their mechanical properties and behavior under various loads. Contact surface fraction was determined as the ratio of the surface area of the printed pattern to the surface area of the entire curved surface. The objective of this work is to design a spatial pattern reducing contact surface fraction and develop a non-linear numerical model evaluating the structure’s stiffness; in addition, we aimed to identify the best design pattern with respect to its stiffness:mass ratio. The experimental verification of the numerical model is performed on 3D-printed prototypes prepared using the Selective Laser Sintering (SLS) method and made of Nylon—Polyamide 12. The obtained results provide insights into designing and optimizing lightweight external biomedical applications such as prostheses, orthoses, helmets, or adaptive cushions.

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Section: Introductionmentioning

confidence: 99%

Design and Behavior of Lightweight Flexible Structure with Spatial Pattern Reducing Contact Surface Fraction

Rybansky,

Marsalek,

Sotola

et al. 2023

Polymers

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“…Previous research has shown that PBF is a complex process with many variables affecting the product in terms of mechanical properties [11][12][13][14][15], surface quality [14][15][16][17][18][19], and geometric and dimensional accuracy [15,[20][21][22]. The part build orientation is known to have a significant effect on final quality with regards to all of these areas in addition to its contribution to build time and cost [23].…”

Section: Introductionmentioning

confidence: 99%

Investigating the Dimensional and Geometric Accuracy of Laser-Based Powder Bed Fusion of PA2200 (PA12): Experiment Design and Execution

Leirmo

Semeniuta

2021

Applied Sciences

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Variation management in additive manufacturing (AM) is progressively more important as technologies are implemented in industrial manufacturing systems; hence massive research efforts are focused on the modeling and optimization of process parameters and the effect on final part quality. These efforts are, however, hampered by the very problem they are seeking to solve, as conclusions are weakened by poor validity, reliability, and repeatability. This paper details an elaborate experiment design and the subsequent execution with the aim of making the research data available without loss of validity. Test artifacts were designed and allocated to fixed positions and orientations in a grid pattern within the build chamber to facilitate rigid analysis between different builds and positions in the build chamber. A total of 507 specimens were produced over three builds by laser sintering PA12 before inspection with a coordinate measuring machine. This research demonstrates the inherent variations of laser-based powder bed fusion of polymers (LB-PBF/P) that must be considered in experiment designs to account for noise factors. In particular, the results indicate that the position in the xy-plane has a major influence on the geometric accuracy, while the position in the z-direction appears to be less influential.

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Status and prospects of surface texturing: design, manufacturing and applications

Song,

Huang,

Wang

et al. 2023

Surf. Sci. Tech.

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In recent years, the requirements for high-quality development in the manufacturing industry and extreme application conditions have increasingly demanded higher equipment performance. The surface and interface condition of components is directly related to the stability, reliability and service life of equipment. The development of high-performance or multi-performance surface texturing is of great significance for the effective improvement of mechanical properties, optical properties, catalytic properties and biological properties of surfaces. This paper summarizes the application of textured surfaces in improving the physical, chemical and biological properties of surfaces; outlines the types of texturing patterns and the design methods; analyzes the main technical methods and their characteristics for the preparation of surface textures in additive manufacturing, subtractive manufacturing and equal material manufacturing; and makes outlooks on texturing surfaces from the aspects of performance enhancement, pattern design and manufacturing technology in combination with the development trend of textured surfaces’ intelligence and digitization.

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Evaluation of the influence of selected parameters of Selective Laser Sintering technology on surface topography

Cited by 5 publications

References 10 publications

Design and Behavior of Lightweight Flexible Structure with Spatial Pattern Reducing Contact Surface Fraction

Design and Behavior of Lightweight Flexible Structure with Spatial Pattern Reducing Contact Surface Fraction

Investigating the Dimensional and Geometric Accuracy of Laser-Based Powder Bed Fusion of PA2200 (PA12): Experiment Design and Execution

Status and prospects of surface texturing: design, manufacturing and applications

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