Flexural properties of selectively sintered polyamide and Alumide

Marșavina, Liviu; Stoia, Dan Ioan

doi:10.1002/mdp2.112

Cited by 7 publications

(7 citation statements)

References 11 publications

(20 reference statements)

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“…Print orientation also has a notable influence on the flexural strength of SLS printed parts. For example, a maximum flexural strength at 0° (59.23 MPa) followed by at 45° (46.25 MPa) and minimum at 90° (19.89 MPa) is reported [ 224 ].…”

Section: Properties Of Printed Partsmentioning

confidence: 99%

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

et al. 2021

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Additive manufacturing (AM) or 3D printing is a digital manufacturing process and offers virtually limitless opportunities to develop structures/objects by tailoring material composition, processing conditions, and geometry technically at every point in an object. In this review, we present three different early adopted, however, widely used, polymer-based 3D printing processes; fused deposition modelling (FDM), selective laser sintering (SLS), and stereolithography (SLA) to create polymeric parts. The main aim of this review is to offer a comparative overview by correlating polymer material-process-properties for three different 3D printing techniques. Moreover, the advanced material-process requirements towards 4D printing via these print methods taking an example of magneto-active polymers is covered. Overall, this review highlights different aspects of these printing methods and serves as a guide to select a suitable print material and 3D print technique for the targeted polymeric material-based applications and also discusses the implementation practices towards 4D printing of polymer-based systems with a current state-of-the-art approach.

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Section: Properties Of Printed Partsmentioning

confidence: 99%

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

et al. 2021

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“…[20][21][22][23] Regarding the energy density used for manufacturing the SENB samples, this was selected at three values: E 1 = 0.067 J/mm 2 , E 2 = 0.046 J/mm 2 , and E 3 = 0.034 J/mm 2 . 24,25 For DCB design, the highest energy was considered (E 1 = 0.067 J/mm 2 ) for all samples.…”

Section: Introductionmentioning

confidence: 99%

Fracture toughness in additive manufacturing by selective laser sintering: an overview

Marșavina

Stoia

Linul

2021

Mat Design & Process Comms

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This paper presents manufacturing, testing, and computing steps for determining the fracture toughness property of polyamide PA 2200 processed by laser sintering using different process parameters. The design of the samples was conducted according to ASTM D5045-99 and ASTM D5528-01, and the fracture tests consist of four-point bending in symmetric and asymmetric configuration and double cantilever beam test. The process parameters selected as variables were in-plane orientation, spatial orientation, energy density of the process, and induced structural defects. The results provide an extended view regarding the variation of fracture properties when the manufacturing conditions in laser sintering are changed.

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“…For example, a maximum flexural strength at 0 °C (59.23 MPa) followed by one at 45 °C (46.25 MPa) and a minimum at 90 °C (19.89 MPa) is reported. 211 In terms of rheological properties, a powder with lower zero viscosity and lower surface tension of the polymer melt is desired. Difficulty in sintering amorphous powders comes from the requirement of zero viscosity resulting in brittle and instable amorphous parts.…”

Section: Selective Laser Sintering (Sls)mentioning

confidence: 99%

3D Printing of Green and Renewable Polymeric Materials: Toward Greener Additive Manufacturing

Guggenbiller

Brooks

King

et al. 2023

ACS Appl. Polym. Mater.

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There is an ever-growing push toward sustainability and green manufacturing in a wide array of industries, especially 3D printing, which is now recognized as a viable manufacturing method. The number of studies focusing on leveraging additive manufacturing of natural products continues to grow, with key areas of interest including exciting chemistries or modifications of natural products toward 3D printable materials, advancements in prototypes or products by changing feedstocks to green or bioderived alternatives, and the introduction of added functionalities or properties. This includes concepts such as processing natural or bioderived polymers into filament for extrusion-based 3D printing, the design of photopolymer resins and inks for vat photopolymerizations, jet printing, or direct ink writing processes, and the use of powders for selective laser sintering. The strategies employed to achieve materials suitable for 3D printing, the physical properties of the materials, and the resultant applications including strengths and limitations, will be explored in this review. Overall, the advancements in the field are leading to future opportunities in biomaterials and medical devices, electronics and batteries, and environmental remediation and water purification.

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Flexural properties of selectively sintered polyamide and Alumide

Cited by 7 publications

References 11 publications

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

Fracture toughness in additive manufacturing by selective laser sintering: an overview

3D Printing of Green and Renewable Polymeric Materials: Toward Greener Additive Manufacturing

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