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Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part

Laser Sintering (LS) allows functional parts to be produced in a wide range of powdered materials using a dedicated machine, and is thus gaining popularity within the field of rapid prototyping. It offers the user the ability to optimise part design in order to meet customer requirements with few ma...

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Main Authors: Wan Yusoff, Wan Ahmad Yusmawiza, Ani, Mohd Hanafi, Pham, DT, Dotchev, K.
Format: Conference or Workshop Item
Language:English
English
Published: EDP Sciences 2015
Subjects:
T Technology (General)
Online Access:http://irep.iium.edu.my/50714/1/50714.pdf
http://irep.iium.edu.my/50714/4/50714_Influence%20of%20molecular%20weight%20average_Scopus.pdf
http://irep.iium.edu.my/50714/
http://www.matec-conferences.org/articles/matecconf/pdf/2015/07/matecconf_acmme2015_03005.pdf
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spelling my.iium.irep.507142017-05-04T01:55:26Z http://irep.iium.edu.my/50714/ Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part Wan Yusoff, Wan Ahmad Yusmawiza Ani, Mohd Hanafi Pham, DT Dotchev, K. T Technology (General) Laser Sintering (LS) allows functional parts to be produced in a wide range of powdered materials using a dedicated machine, and is thus gaining popularity within the field of rapid prototyping. It offers the user the ability to optimise part design in order to meet customer requirements with few manufacturing restrictions. A problem with LS is that sometimes the surface of the parts produced displays a texture similar to that of the skin of an orange (the so­called “orange peel” (texture). The main aim of this research is to develop a methodology of controlling the input material properties of PA12 powder that will ensure consistent and good quality of the fabricated parts. Melt Flow Rate (MFR) and Gel permeation chromatography (GPC) were employed to measure the flow viscosity and molecular weight distributions of Polyamide PA12 powder grades. The experimental results proved that recycle PA12 powder with higher melt viscosity polymer has a higher entanglement with a longer molecule chain causes a higher resistance to flow which cause poor and rough surface finished on laser sintered part EDP Sciences 2015-10-12 Conference or Workshop Item REM application/pdf en http://irep.iium.edu.my/50714/1/50714.pdf application/pdf en http://irep.iium.edu.my/50714/4/50714_Influence%20of%20molecular%20weight%20average_Scopus.pdf Wan Yusoff, Wan Ahmad Yusmawiza and Ani, Mohd Hanafi and Pham, DT and Dotchev, K. (2015) Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part. In: 2015 3rd Asia Conference on Mechanical and Materials Engineering (ACMME 2015), 23rd-24th July 2015, Chengdu, Sichuan, China. http://www.matec-conferences.org/articles/matecconf/pdf/2015/07/matecconf_acmme2015_03005.pdf 10.1051/matecconf/20152603005
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic T Technology (General)
spellingShingle T Technology (General)
Wan Yusoff, Wan Ahmad Yusmawiza
Ani, Mohd Hanafi
Pham, DT
Dotchev, K.
Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
description Laser Sintering (LS) allows functional parts to be produced in a wide range of powdered materials using a dedicated machine, and is thus gaining popularity within the field of rapid prototyping. It offers the user the ability to optimise part design in order to meet customer requirements with few manufacturing restrictions. A problem with LS is that sometimes the surface of the parts produced displays a texture similar to that of the skin of an orange (the so­called “orange peel” (texture). The main aim of this research is to develop a methodology of controlling the input material properties of PA12 powder that will ensure consistent and good quality of the fabricated parts. Melt Flow Rate (MFR) and Gel permeation chromatography (GPC) were employed to measure the flow viscosity and molecular weight distributions of Polyamide PA12 powder grades. The experimental results proved that recycle PA12 powder with higher melt viscosity polymer has a higher entanglement with a longer molecule chain causes a higher resistance to flow which cause poor and rough surface finished on laser sintered part
format Conference or Workshop Item
author Wan Yusoff, Wan Ahmad Yusmawiza
Ani, Mohd Hanafi
Pham, DT
Dotchev, K.
author_facet Wan Yusoff, Wan Ahmad Yusmawiza
Ani, Mohd Hanafi
Pham, DT
Dotchev, K.
author_sort Wan Yusoff, Wan Ahmad Yusmawiza
title Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
title_short Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
title_full Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
title_fullStr Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
title_full_unstemmed Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered part
title_sort influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide pa12 powder grades on the microstructures of laser sintered part
publisher EDP Sciences
publishDate 2015
url http://irep.iium.edu.my/50714/1/50714.pdf
http://irep.iium.edu.my/50714/4/50714_Influence%20of%20molecular%20weight%20average_Scopus.pdf
http://irep.iium.edu.my/50714/
http://www.matec-conferences.org/articles/matecconf/pdf/2015/07/matecconf_acmme2015_03005.pdf
_version_ 1643613794909290496
score 13.211869

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