(The following press release from GE Aviation was received by e-mail. It 
was not confirmed by the sender.) 
GE Aviation Signs Additive Manufacturing Cooperative Agreement with Sigma Labs
In-Process Inspection Technology Progresses Additive Production Speeds 
EVENDALE, OHIO - May 24, 2013 - GE Aviation and Sigma Labs, Inc. signed a Joint 
Technology Development Agreement (JTDA) to advance and implement in-process 
inspection technologies for additive manufactured jet engine components. 
The mutually-developed inspection technology will verify the quality and 
geometry of additive components during the additive build process, increasing 
additive production speeds up to 25 percent in support of GE Aviation's growing 
production rates. 
"Today, post-build inspection procedures account for as much as 25 percent of 
the time required to produce an additively manufactured engine component," said 
Greg Morris, GE Aviation's business development leader for additive 
manufacturing. "By conducting those inspection procedures while the component 
is being built, GE Aviation and Sigma labs will expedite production rates for 
GE's additive manufactured engine components like the LEAP fuel nozzle." 
Mark Cola, President and Chief Executive Officer of Sigma Labs, stated, "We are 
pleased to have signed the agreement and to begin the next phase in 
demonstrating our PrintRite3D(tm) technology for additive manufacturing of 
metal parts. Together, we will be focusing our efforts in working to assure the 
build quality and as-built repeatability of additively manufactured aircraft 
engine components, thereby ensuring predictable materials properties critical 
to successful product commercialization." 
By 2020, GE Aviation will produce more than 100,000 additive manufactured 
components for the LEAP(tm) and GE9X engines. GE will install 19 additive 
manufactured fuel nozzles on every LEAP engine, which has amassed more than 
4,500 orders. The LEAP fuel nozzle is up to 25 percent lighter and five-times 
more durable than traditionally manufactured fuel nozzles, leading to 
significant fuel savings. 
Additive manufacturing enables optimized designs for complex components.  GE 
Aviation uses additive manufacturing methods such as direct metal laser melting 
(DMLM) to build 3D-designed production engine components that traditional 
manufacturing methods are incapable of producing. 
GE's additive manufactured components weigh less than conventional parts 
because they replace complex assemblies with single pieces, reducing the need 
for brazing and welding. Additive manufacturing also generates less scrap 
material during the fabrication process. 
The additive manufacturing process involves taking digital designs from 
computer aided design (CAD) software, and laying horizontal cross-sections to 
manufacture the part.  The process creates the layered cross-sections using a 
laser beam to melt the raw material. 
About Sigma Labs, Inc.
Sigma Labs, Inc. (OTCBB: SGLB) has two wholly-owned subsidiaries - B6 Sigma, 
Inc. and Sumner & Lawrence Limited (dba Sumner Associates). B6 Sigma develops 
precision manufacturing solutions and advanced materials technologies, as well 
as R&D solutions for first-tier integrators and other commercial firms 
worldwide. Sumner Associates provide high-level consultants to Federal 
government and commercial clients seeking productive solutions for emerging and 
strategic development technologies. Sigma Labs has current contracts with 
Federal government and private industry clients to provide high-level contract 
engineering services and develops technologies from their conception through 
the design, building, and testing of prototype systems. For more information 
please visit us at<>.  Follow 
Sigma Labs on Twitter at<> 
About GE Aviation
GE Aviation, an operating unit of GE (NYSE: GE), is a world-leading provider of 
jet, turboshaft and turboprop engines, components and integrated systems for 
commercial, military, business and general aviation aircraft. GE Aviation has a 
global service network to support these offerings. For more information, visit 
us at<>. Follow GE Aviation on 
Twitter at and YouTube at For more information on ecomagination, 
LEAP(tm) is a trademark of CFM International, a joint company between GE and 
Snecma (SAFRAN) of France 
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For further information, contact:
Matt Benvie           513.243.3249  <>    Mobile:  513.432.6834
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