High speed sintering (HSS) is an additive manufacturing (AM) process that creates parts by sintering powder particles using inkjet and infrared (IR) lamp technology rather than laser systems employed in laser sintering (LS). This research investigated the effects of machine parameters (lamp speed, bed temperature) and the addition of fumed silica flow agent on the tensile properties of thermoplastic elastomer (TPE) parts processed using HSS. The results showed improved elongation at break (EaB) values by a factor of more than 2× compared to reported values for LS of the same TPE. At constant parameters, improved tensile strength and tensile modulus were observed with the addition of flow agent into the sintering mixture.

References

References
1.
Gibson
,
I.
,
Rosen
,
D. W.
, and
Stucker
,
B.
,
2010
,
Additive Manufacturing Technologies: Rapid Prototyping to Direct Digital Manufacturing
,
Springer
,
New York
10.1007/978-1-4419-1120-9.
2.
Hopkinson
,
N.
,
Hague
,
R.
, and
Dickens
,
P.
,
2006
,
Rapid Manufacturing: An Industrial Revolution for the Digital Age
,
Wiley
,
Chichester, UK
10.1002/0470033991.
3.
Wohlers
,
T.
,
2007
, Wohlers Report 2007: State of the Industry: Annual Worldwide Progress Report, Wohlers Associates Inc., Fort Collins, CO.
4.
Starr
,
T.
,
Gornet
,
T.
, and
Usher
,
J.
,
2011
, “
The Effect of Process Conditions on Mechanical Properties of Laser-Sintered Nylon
,”
Rapid Prototyping J.
,
17
(
6
), pp.
418
423
.10.1108/13552541111184143
5.
Advanced Laser Materials (ALM), “
TPE210-S Technical Data Sheet
,” ALM official website, http://www.alm.com
6.
Ellis
,
A.
,
Noble
,
C. J.
, and
Hopkinson
,
N.
,
2014
, “
High Speed Sintering: Assessing the Influence of Print Density on Microstructure and Mechanical Properties of Nylon Parts
,”
Addit. Manuf.
(in press).10.1016/j.addma.2014.07.003
7.
Thomas
,
H. R.
,
Hopkinson
,
N.
, and
Erasenthiran
,
P.
,
2006
, “
High Speed Sintering—Continuing Research Into a New Rapid Manufacturing Process
,”
Proceedings of 17th SFF Symposium
, Austin, TX, pp.
682
691
.
8.
Majewski
,
C. E.
,
Oduye
,
D.
,
Thomas
,
H. R.
, and
Hopkinson
,
N.
,
2008
, “
Effect of Infra-red Power Level on the Sintering Behaviour in the High Speed Sintering Process
,”
Rapid Prototyping J.
,
14
(
3
), pp.
155
160
.10.1108/13552540810878012
9.
Kang
,
S.
,
2005
,
Sintering Densification, Grain Growth, and Microstructure
,
Elsevier Butterworth-Heinemann
,
Amsterdam, The Netherlands
.
10.
Harper
,
C. A.
,
1992
,
Handbook of Plastics, Elastomers, and Composites
,
McGraw-Hill
,
New York
.
11.
Walker
,
B. M.
,
1979
,
Handbook of Thermoplastic Elastomers, Van Nostrand Reinhold
,
New York
.
12.
Vasquez
,
M.
,
Hopkinson
,
N.
, and
Haworth
,
B.
,
2010
, “
Laser Sintering Processes: Practical Verification of Particle Coalescence for Polyamides and Thermoplastic Elastomers
,”
ANTEC 2011 Conference
, Society of Plastics Engineers Incorporated (SPE), Boston, MA, pp.
2458
2462
.
13.
ASTM, “
ASTM International—Standards Worldwide
,” Available at: http://www.astm.org
You do not currently have access to this content.