The RAPID 2013 Conference & Exposition Directory - Society of ...

presentation will cover the intersection of design, technology,
and manufacturing in the Age of Trillions.
2:30–2:55 pm
Advantages of Selective Contour Photocuring (SCP)
Technology for Additive Manufacturing
Martin Forth, Vice President, EnvisionTEC GmbH
Selective contour photocuring (SCP) is a promising new
technology which enables high-speed curing without sacrificing
accuracy, yielding higher productivity as well as better control
over material shrinkage during the build process. In a build area
of 279 x 198 x 203mm, SCP technology enables a build speed
up to 10mm per hour for the full build envelope at 50 microns, Z
resolution inversely proportional to the X dimension, and 20 mm
per hour for half of the X/Y build envelope.
Curing speed is 1.5 inches per second in the X dimension,
while up to 2000 partial images are cured per second in the Y
dimension during X motion, enabling X/Y feature resolution down
to 19 microns. Resolution in the Z dimension is 25–100 microns,
depending on material, and may be adjusted by the user. In
addition, viscosity of the material is no longer a constraint with
SCP: liquid photopolymer may be filled with zirconia, aluminum
oxide, carbon fiber, or other suspended materials. Notably, such
materials may not be jetted; jet technologies require the use of
materials below 60 centipoise (cP) dynamic viscosity. Viscosities up
to 3000 may be accommodated (e.g., EC500 wax-based material).
3–3:25 pm
Design Innovation Enabled by Additive
Manufacturing
Prabhjot Singh, PhD, Manager, GE Global Research
Additive manufactring is enabling new degrees of design freedom
previously not possible in new product developments. GE
reseachers have been working on additive technologies for two
decades. The company's level of activity and investments in additive
have substantially increased during the past five years, as it
has recognized the vast potential of this technology to transform
its own products.
This presentation will provide examples across GE's industrial
portfolio in aviation, health care, oil & gas and more of how GE
researchers are exploiting this capability across its product
portfolio to achieve higher levels of efficiency and performance in
its products and manufacturing operations. There will be discussion
on GE's efforts to foster an ecosystem that accelerates the
growth and scale up of additive manuacturing to meet the largerscale
industrial needs of companies like GE to maximize the
impact this technology can have in transforming manufacturing.
In competing technologies, use of the X and Y galvanometer
mirrors creates distortion in two dimensions during the curing
process. This distortion of the beam as it is reflected off
galvanometer mirrors must be corrected in both the X and Y
dimensions. With SCP, optical correction is only required in the
Y dimension, yielding a more streamlined build process as well
as simpler long-term machine maintenance. The non-projection
light source is reliable, requires no calibration over long periods
of time, and allows for better control of the curing path. Higher
uptime, lower maintenance costs, greater affordability, and
enhanced Quality/Reliability/Durability (QRD) are the result.
Image courtesy Jim Stanis
6/2013 – RAPID 55