期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2019
卷号：2240
页码：506-513
出版社：Newswood and International Association of Engineers
摘要：Selective Laser Sintering is one of the most
advanced and promising technologies of Additive
Manufacturing known to mankind. The accessibility of SLS to
the college students, faculty and independent researchers is
limited due to prohibitively high costs. Through this paper an
attempt has been made to chalk out the methodology used to
design a SLS Printer for polymers thereby addressing the
accessibility problem. Alternatively, this methodology is
relevant to anyone, who is interested in SLS Technology and
building a machine based on it. Through a careful study, it was
established that laser system is one of the highest contributors
to the overall asset cost. Therefore, it was treated as a primary
target for cost reduction . Diode laser was used as an
alternative to commonly used CO2 laser. This selection led to a
significant cost saving. The effect of the loss of power on
account of using a Diode Laser is offset by an infrared heating
system. The infrared heating system increases the scanning
speed and prevents thermal defects such as warping and
delamination leading to more uniform and accurate prints. An
innovative blend of Nylon-12 was used for enhancing the
compatibility of material with the blue diode laser. Through a
series of systematic experiments and subsequent iterations an
optimum composition and scanning parameters were
established. The printed part had a tolerance of 0.3mm which is
sufficient for post processing.
