Structural and mechanical characteristics of porous 316L stainless steel fabricated by indirect selective laser sintering

Xie, Fangxia; He, Xiaocong; Cao, Shunli; Qu, Xuanhui

doi:10.1016/j.jmatprotec.2012.12.014

Cited by 85 publications

(36 citation statements)

References 19 publications

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“…Nevertheless, porosity is common in these powder bed processes requiring hot isostatic pressing or infilling with another material to improve the mechanical properties of the finished product. [17,18] To fabricate a dense and mechanically stable 3D structures such as active material constructors or current collectors, DED is another powder-or wire-based printing method that utilizes a laser or electron beam focused on a substrate producing a melt pool to which a coaxial powder stream or a wire feed is injected, building a 3D structure [19,20] (Figure 1h). Despite producing robust structures, the process is time consuming and requires inert conditions making it expensive for industrial use.…”

Section: D Printing Methods-state Of the Artmentioning

confidence: 99%

“…Several examples of successful adoption of additive manufacturing in mass production have emerged in recent years. Among others, footwear, automotive parts, and even almost fully printed cars, dental aligners, medical prosthetics, implants, tools, etc., [30,159] parts for aerospace industry, [18,25] electronic devices, [20,38,160] jewelry [40] are all being mass-produced using a variety of additive manufacturing techniques, such as VAT-P, SLM, ME, SLS, aerosol jet printing, etc. Given the ongoing development of new hardware and software with improved specifications, extensive research in 3D printing, and many undeniable benefits of additive manufacturing, it is almost certain that the number of businesses and industries that move toward the adoption of AM will grow rapidly in the near future.…”

Section: Reproducibility and Mass Production In 3d Printed Eesdsmentioning

confidence: 99%

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Evolution of 3D Printing Methods and Materials for Electrochemical Energy Storage

et al. 2020

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Additive manufacturing has revolutionized the building of materials, and 3D‐printing has become a useful tool for complex electrode assembly for batteries and supercapacitors. The field initially grew from extrusion‐based methods and quickly evolved to photopolymerization printing, while supercapacitor technologies less sensitive to solvents more often involved material jetting processes. The need to develop higher‐resolution multimaterial printers is borne out in the performance data of recent 3D printed electrochemical energy storage devices. Underpinning every part of a 3D‐printable battery are the printing method and the feed material. These influence material purity, printing fidelity, accuracy, complexity, and the ability to form conductive, ceramic, or solvent‐stable materials. The future of 3D‐printable batteries and electrochemical energy storage devices is reliant on materials and printing methods that are co‐operatively informed by device design. Herein, the material and method requirements in 3D‐printable batteries and supercapacitors are addressed and requirements for the future of the field are outlined by linking existing performance limitations to requirements for printable energy‐storage materials, casings, and direct printing of electrodes and electrolytes. A guide to materials and printing method choice best suited for alternative‐form‐factor energy‐storage devices to be designed and integrated into the devices they power is thus provided.

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Section: D Printing Methods-state Of the Artmentioning

confidence: 99%

Section: Reproducibility and Mass Production In 3d Printed Eesdsmentioning

confidence: 99%

Evolution of 3D Printing Methods and Materials for Electrochemical Energy Storage

et al. 2020

View full text Add to dashboard Cite

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“…Depending on the machine parameters, mechanical properties changes after manufacturing, as well as part properties during manufacturing. The shrinkage, internal stress, residual stress, distortion and manufacturability of the parts also change [4][5][6][7]. Furthermore, the manufacturability with PBF depends mainly on two situations.…”

Section: Introductionmentioning

confidence: 99%

On The Relation Between Cooling Rate and Parts Geometry in Powder Bed Fusion Additive Manufacturing

Yılmaz¹,

Kayacan²

2018

acperpro

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Direct metal laser sintering (DMLS), one of the laser powder bed additive manufacturing technologies produces solid metal parts from 3-D CAD data, layer by layer, by melting/sintering and bonding metal powders with a focused laser beam. In these processes isn't complete melting of powder particles in micro melt pools as well as selective laser melting (SLM) and electron beam melting (EBM). Thus some different stress conditions and defects occur depending on the temperature changes during manufacturing. In this study, this problem is investigated aspect cooling rate. Cooling rate affects the solidification process in the melting (sintering) process such as casting, welding, laser assisted processes. Therefore, it also affects part quality and properties. In the scope of study, it is tried to explain how occurring the internal stresses and distortions differ depending on the cooling rates of geometrically different parts in additive manufacturing. The residual stresses and deformations are analysed by FEA to see relation with geometry (volume, area) to cooling rate for Ti6Al4V materials. Cube shaped samples at 20, 40, 60, 80 and 100 mm edge dimensions have analysed by using FEA. Besides 10mm cube sample is manufactured as solid and verified both as experimental and numerical. Based on the FEA results, cooling rate values are changed from 1.67 to 16.67. In conclusion, the reasons of the problems occurring during laser powder bed fusion are investigated in terms of the cooling rate in relation with the samples geometry.

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“…Selective laser sintering is one of the most popular process in the production of finished three-dimensional parts in a tight schedule [1][2][3][4]. However, in order to ensure the required parameters of strength and durability, the most of finished parts should have a defectless microstructure, the required roughness and have a minimal porosity [5,6]. This work presents the experimental studies results of the tribo-mechanical properties of the specimens obtained by selective laser sintering.…”

Section: Introductionmentioning

confidence: 99%

Investigation of tribo-mechanical properties and structure of specimens obtained by selective laser melting of stainless steel powders

2018

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The article presents experimental data about the quality parameters of the stainless steel three-dimensional parts obtained by the selective laser sintering procedure. The results of the porosity, tribological properties, tensile test, hardness measurement and density for different values of the focal point position during the engineering process of the three-dimensional parts sintering were given. For parts made from steel powder CL20ES at a laser radiation power of 200 W in a different focal length range, it is demonstrate that the specimens with the highest density and microhardness values are obtained during the synthesis by using a converging laser beam.

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Structural and mechanical characteristics of porous 316L stainless steel fabricated by indirect selective laser sintering

Cited by 85 publications

References 19 publications

Evolution of 3D Printing Methods and Materials for Electrochemical Energy Storage

Evolution of 3D Printing Methods and Materials for Electrochemical Energy Storage

On The Relation Between Cooling Rate and Parts Geometry in Powder Bed Fusion Additive Manufacturing

Investigation of tribo-mechanical properties and structure of specimens obtained by selective laser melting of stainless steel powders

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