The Selective Laser Sintering of Polycarbonate

Berzins, Martin; Childs, T.H.C.; Ryder, G.

doi:10.1016/s0007-8506(07)63044-3

Cited by 47 publications

(30 citation statements)

References 4 publications

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“…The range of Energy Density obtained from equation (7) and used in experiments, has also been preliminarily estimated by the aforementioned models and turned out to be comparable to those used in [8] and [9]. The Energy Density has been varied modulating the scanning speed and the laser power in the range respectively of 500-2500 mm/s and 50-12.5 W. The laser spot diameter Ø was kept constant at the minimum achievable size of 0.7mm for the experimental set-up.…”

Section: Here Tablementioning

confidence: 70%

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Experimental analysis of selective laser sintering of polyamide powders: an energy perspective

Franco

Lanzetta

Romoli

2010

Journal of Cleaner Production

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The diffusion of innovative working process, including rapid prototyping techniques, is needed to achieve sustainable production technology. Selective Laser Sintering (SLS) has a potential as an environmental benign alternative to traditional processes but only few authors deal with the process optimisation including energy aspects. In the present paper an analysis of the energetic aspect of SLS is proposed. In addition, with respect to the classical technological parameters (resolution, productivity) attention is paid to energetic elements (energetic productivity, laser parameters) showing how the perspective of a sensible development of such a kind of technology could be beneficial not only from a technological point of view, but also for energy saving in a lot of manufacturing fields. A polyamide powder is the material tested to acquire some characteristics data of the process. It is shown that the energy intensity of the process in optimal condition could be of the order of 0.2 J for each mm 3 of material agglomerated.

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Section: Here Tablementioning

confidence: 70%

“…An energy balance model for polyamide [7] and an analytical model for polycarbonate have been proposed in [8] and [9]. Three strategies have been investigated: analytical, adaptive mesh finite difference and fixed mesh finite element, with more layers.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of selective laser sintering of polyamide powders: an energy perspective

Franco

Lanzetta

Romoli

2010

Journal of Cleaner Production

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“…analyzed and tailored to the sintering process. Further research has dealt with modeling of the sintering process, [41][42][43][44][45] since a detailed description of the process, in terms of the interaction between laser energy insertion and material, appears to be the key for continuing improvements of part quality and process efficiency.…”

Section: Selective Laser Sintering (Sls)mentioning

confidence: 99%

Additive Processing of Polymers

Wendel

Rietzel

Kühnlein

et al. 2008

Macro Materials & Eng

279

203

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Additive processing technologies are rapidly growing in all fields of application. A large number of scientific publications were investigated in order to provide a comprehensive overview of rapid prototyping methods for polymers and their applications, of currently available materials and research concerning additive processes. The current problems of additive processes are described, together with their potential solutions. Furthermore, this article delivers an insight into possible future trends of additive technologies.

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“…The SLS makes it possible to manufacture products with a unique internal and/or external surface shape and perspective physical and mechanical properties [1][2][3][4][5]. At the same time, there are a number of promising polymer powder materials that differ from those traditionally and long used in the technology of SLS-nylon [6,7], polycarbonate [8][9][10][11][12], polyamides [13][14][15][16][17], polyethylenes [18,19], or ferrielectric polyvinylidene fluorides [20] and so on-by a combination of high heat resistance, durability, and a wide range of interesting physic-mechanical and chemical-biological properties [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

The Setup Design for Selective Laser Sintering of High-Temperature Polymer Materials with the Alignment Control System of Layer Deposition

2018

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This paper presents the design of an additive setup for the selective laser sintering (SLS) of high-temperature polymeric materials, which is distinguished by an original control system for aligning the device for depositing layers of polyether ether ketone (PEEK) powder. The kinematic and laser-optical schemes are given. The main cooling circuits are described. The proposed technical and design solutions enable conducting the SLS process in different types of high-temperature polymer powders. The principles of the device adjustment for depositing powder layers based on an integral thermal analysis are disclosed. The PEEK sinterability was shown on the designed installation. The physic-mechanical properties of the tested 3D parts were evaluated in comparison with the known data and showed an acceptable quality.

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The Selective Laser Sintering of Polycarbonate

Cited by 47 publications

References 4 publications

Experimental analysis of selective laser sintering of polyamide powders: an energy perspective

Experimental analysis of selective laser sintering of polyamide powders: an energy perspective

Additive Processing of Polymers

The Setup Design for Selective Laser Sintering of High-Temperature Polymer Materials with the Alignment Control System of Layer Deposition

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