Industrial laser micro sintering

Petsch, Tino; Regenfuß, Peter; Ebert, R.; Hartwig, L.; Klötzer, S.; Brabant, Th.; Exner, Horst

doi:10.2351/1.5060352

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…However, the archived density is less than those in bulk materials. Petsch et al [110] studied the use of micro SLS technique to manufacture microcomponents made from metal and ceramic powders for miniaturised tools and products. The process has successfully fabricated micro-parts for tools from ceramic powders such as aluminium nitride.…”

Section: Powder Bed Fusionmentioning

confidence: 99%

Micro-fabrication of ceramics: Additive manufacturing and conventional technologies

et al. 2021

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Ceramic materials are increasingly used in micro-electro-mechanical systems (MEMS) as they offer many advantages such as high-temperature resistance, high wear resistance, low density, and favourable mechanical and chemical properties at elevated temperature. However, with the emerging of additive manufacturing, the use of ceramics for functional and structural MEMS raises new opportunities and challenges. This paper provides an extensive review of the manufacturing processes used for ceramic-based MEMS, including additive and conventional manufacturing technologies. The review covers the micro-fabrication techniques of ceramics with the focus on their operating principles, main features, and processed materials. Challenges that need to be addressed in applying additive technologies in MEMS include ceramic printing on wafers, post-processing at the micro-level, resolution, and quality control. The paper also sheds light on the new possibilities of ceramic additive micro-fabrication and their potential applications, which indicates a promising future.

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Section: Powder Bed Fusionmentioning

confidence: 99%

Micro-fabrication of ceramics: Additive manufacturing and conventional technologies

et al. 2021

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“…However, proof of concept to realize metal and ceramic parts using this approach is evident. Petsch et al [ 120 ] used LMS techniques to fabricate metal and ceramic microparts. The authors were able to process aluminum nitride and achieved high‐density microparts.…”

Section: Applicationsmentioning

confidence: 99%

Microadditive Manufacturing Technologies of 3D Microelectromechanical Systems

2021

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Conventional microfabrication processes have been well established, but their capabilities are generally limited simple and 2D extruded geometries. Additive manufacturing allows the ability to manufacture true 3D complex geometries, rapid design for manufacturing, mass customization, materials savings, and high precision, which have triggered the increased interest in manufacturing microelectromechanical systems (MEMS). Herein, MEMS manufacturing's recent advancements, including both conventional and additive manufacturing technologies, their working principles, and practical capabilities are consolidated. The use of additive manufacturing in several MEMS areas such as in microelectronics, circuitry, microfluidics, lab on a chip, packaging, and structural MEMS is also discussed in detail. Furthermore, the potentials and limitations of additive manufacturing are investigated with regard to the MEMS requirements. Finally, the technology outlook and improvements are discussed. This study shows that additive manufacturing offers a promising future for the fabrication of MEMS, especially using high‐resolution techniques such as microstereolithography, materials jetting, and materials extrusion. In contrast, current challenges such as materials requirements, equipment innovation, fabricating of in vivo devices for biomedical applications, inherited defects and poor surface finish, adhesion to substrates, and productivity are areas that require further study to increase the uptake by the MEMS community.

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“…In the working system, powder groups consisting of metal powders in a bed are melted or sintered by a laser beam. This process is a powder welding process to make a solid part or attachment to a previously determined computer-generated 3D model [90]. Most of the powders used in this technique are metals (Ag, Al, Cu, and stainless steels) or polymers in addition to some ceramics which can be processed using this technique [88].…”

Section: Powder Bed Fusion (Additive Laser Technique)mentioning

confidence: 99%

Manufacturing of Microfluidic Sensors Utilizing 3D Printing Technologies: A Production System

Khorsandi¹,

Nodehi²,

Waqar³

et al. 2021

Journal of Nanomaterials

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3D integrated microfluid devices are a group of engineered microelectromechanical systems (MEMS) whereby the feature size and operating range of the components are on a microscale. These devices or systems have the ability to detect, control, activate, and create macroscale effects. On this basis, microfluidic chips are systems that enable microliters and smaller volumes of fluids to be controlled and moved within microscale-sized (one-millionth of a meter) channels. While this small scale can be compared to microfluid chips of larger applications, such as pipes or plumbing practices, their small size is commonly useful in controlling and monitoring the flow of fluid. Through such applications, microfluidic chip technology has become a popular tool for analysis in biochemistry and bioengineering with their most recent uses for artificial organ production. For this purpose, microfluidic chips can be instantly controlled by the human body, such as pulse, blood flow, blood pressure, and transmitting data such as location and the programmed agents. Despite its vast uses, the production of microfluidic chips has been mostly dependent upon conventional practices that are costly and often time consuming. More recently, however, 3D printing technology has been incorporated in rapidly prototyping microfluid chips at microscale for major uses. This state-of-the-art review highlights the recent advancements in the field of 3D printing technology for the rapid fabrication, and therefore mass production, of the microfluid chips.

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Industrial laser micro sintering

Cited by 8 publications

References 6 publications

Micro-fabrication of ceramics: Additive manufacturing and conventional technologies

Micro-fabrication of ceramics: Additive manufacturing and conventional technologies

Microadditive Manufacturing Technologies of 3D Microelectromechanical Systems

Manufacturing of Microfluidic Sensors Utilizing 3D Printing Technologies: A Production System

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