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Post Processing Treatments on Laser Sintered Nylon 12

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published
Publication date8/12/2017
Host publicationSolid Freeform Fabrication 2017: Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference
PublisherThe Minerals, Metals & Materials Society (TMS)
Pages1464-1471
Number of pages8
<mark>Original language</mark>English
Event28th Annual International Solid Freeform Fabrication Symposium - Hilton Hotel Austin, Austin, United States
Duration: 7/08/20179/08/2017
Conference number: 28th
https://imisweb.tms.org/portal/MEETINGS___EVENTS/TMS_Meetings___Events/Upcoming_TMS_Meetings/2017_Annual_International_Solid_Freeform_Fabrication_Symposium/portal/Meetings___Events/2017/SFF2017/default.aspx?hkey=3a5ae621-fafa-4efc-9ce9-75bc245b08e3

Symposium

Symposium28th Annual International Solid Freeform Fabrication Symposium
Country/TerritoryUnited States
CityAustin
Period7/08/179/08/17
Internet address

Symposium

Symposium28th Annual International Solid Freeform Fabrication Symposium
Country/TerritoryUnited States
CityAustin
Period7/08/179/08/17
Internet address

Abstract

The laser sintering of polymers is an established process producing components with well-documented material properties. Whilst these properties are inferior to those of injection moulded nylon 12, they are suitable for prototyping and several specialist production applications. Broadening the applicability of the process to a wider range of manufacturing applications can be accomplished by rendering the material properties of sintered nylon closer to those of injection moulded nylon. This paper reports on a series of post-processing treatments which have been carried out to enhance the mechanical properties of sintered nylon. The work has examined the effects of heat, pressure, infiltration with methyl methacrolate and combinations of these treatments. Results are reported on the impact of the treatments on the elongation and Ultimate Tensile Strength (UTS) of the test samples, with heated pressured samples improving UTS by 2MPa, and infiltrated parts increasing elongation by 5.2%.