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Deterioration of polyamide powder properties in the laser sintering process

Research output: Contribution to journalArticle

Standard

Deterioration of polyamide powder properties in the laser sintering process. / Pham, D.; Dotchev, Krassimir; Yusoff, W.

In: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 222, No. 11, 01.11.2008, p. 2163-2176.

Research output: Contribution to journalArticle

Harvard

Pham, D, Dotchev, K & Yusoff, W 2008, 'Deterioration of polyamide powder properties in the laser sintering process', Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, vol. 222, no. 11, pp. 2163-2176. https://doi.org/10.1243/09544062JMES839

APA

Pham, D., Dotchev, K., & Yusoff, W. (2008). Deterioration of polyamide powder properties in the laser sintering process. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 222(11), 2163-2176. https://doi.org/10.1243/09544062JMES839

Vancouver

Pham D, Dotchev K, Yusoff W. Deterioration of polyamide powder properties in the laser sintering process. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2008 Nov 1;222(11):2163-2176. https://doi.org/10.1243/09544062JMES839

Author

Pham, D. ; Dotchev, Krassimir ; Yusoff, W. / Deterioration of polyamide powder properties in the laser sintering process. In: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2008 ; Vol. 222, No. 11. pp. 2163-2176.

Bibtex

@article{5bd50bbb95d842ecbfb6389e609059df,
title = "Deterioration of polyamide powder properties in the laser sintering process",
abstract = "Polyamide 12 (PA12)-based powders are the most used materials in the laser sintering (LS) process for rapid manufacturing of functional parts. An average of 80–90 per cent of the powdered material in the LS building chamber is not sintered and could be reused. However, the properties of the recycled powder vary, which ultimately affects the quality of produced parts. These differences are due to the process conditions such as temperature and time, the LS machine design, and properties of the powder used for parts fabrication. This paper analyses the LS processing conditions and current recycling practices in relation with the deterioration or ageing of the PA12-based powders. Samples of new and recycled grades of PA2200 powder were artificially aged in a temperature-controlled oven and then tested using differential scanning calorimetry, melt flowrate indexer, and gel permeation chromatography. It has been found that the temperature and the time at which the unsintered powder was exposed are the most influential factors for the deterioration of LS powder properties.",
author = "D. Pham and Krassimir Dotchev and W. Yusoff",
year = "2008",
month = nov
day = "1",
doi = "10.1243/09544062JMES839",
language = "English",
volume = "222",
pages = "2163--2176",
journal = "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science",
issn = "0954-4062",
publisher = "SAGE Publications Inc.",
number = "11",

}

RIS

TY - JOUR

T1 - Deterioration of polyamide powder properties in the laser sintering process

AU - Pham, D.

AU - Dotchev, Krassimir

AU - Yusoff, W.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - Polyamide 12 (PA12)-based powders are the most used materials in the laser sintering (LS) process for rapid manufacturing of functional parts. An average of 80–90 per cent of the powdered material in the LS building chamber is not sintered and could be reused. However, the properties of the recycled powder vary, which ultimately affects the quality of produced parts. These differences are due to the process conditions such as temperature and time, the LS machine design, and properties of the powder used for parts fabrication. This paper analyses the LS processing conditions and current recycling practices in relation with the deterioration or ageing of the PA12-based powders. Samples of new and recycled grades of PA2200 powder were artificially aged in a temperature-controlled oven and then tested using differential scanning calorimetry, melt flowrate indexer, and gel permeation chromatography. It has been found that the temperature and the time at which the unsintered powder was exposed are the most influential factors for the deterioration of LS powder properties.

AB - Polyamide 12 (PA12)-based powders are the most used materials in the laser sintering (LS) process for rapid manufacturing of functional parts. An average of 80–90 per cent of the powdered material in the LS building chamber is not sintered and could be reused. However, the properties of the recycled powder vary, which ultimately affects the quality of produced parts. These differences are due to the process conditions such as temperature and time, the LS machine design, and properties of the powder used for parts fabrication. This paper analyses the LS processing conditions and current recycling practices in relation with the deterioration or ageing of the PA12-based powders. Samples of new and recycled grades of PA2200 powder were artificially aged in a temperature-controlled oven and then tested using differential scanning calorimetry, melt flowrate indexer, and gel permeation chromatography. It has been found that the temperature and the time at which the unsintered powder was exposed are the most influential factors for the deterioration of LS powder properties.

U2 - 10.1243/09544062JMES839

DO - 10.1243/09544062JMES839

M3 - Article

VL - 222

SP - 2163

EP - 2176

JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

SN - 0954-4062

IS - 11

ER -

ID: 109181