Tuskegee University Selected by NASA to Advance Additive Manufacturing in Aerospace

The aerospace industry is a trendsetter when it comes to manufacturing. It is a major industry that evolved its expertise into lighter material, efficient engines and overall safer machines. Leveraging high technologies and reducing time-to-market is essential for the field to move forward, especially with a close future in the commercial development of low Earth orbit (LEO) and beyond. NASA is now accelerating manufacturing needs in the US space sector by selecting three minority-serving institutions to advance aerospace manufacturing. The space agency announced last week that Tuskegee University, in Alabama, will be one of three universities awarded grants through its Minority University Research and Education Project (MUREP). Part of NASA’s Office of STEM Engagement, MUREP partnered with the agency’s Aeronautics Research Mission Directorate to provide the students with the education and experience needed to help address manufacturing needs. Tuskegee will be looking into the impact of additive manufacturing on aerospace high-volume manufacturing and supply chain management.

“In recent years, the U.S. aerospace industry has struggled to meet the growing global demand for aircraft and parts, resulting in all-time-high order backlogs, unsustainable spare parts inventories, and lost opportunities for growth,” explained Firas Akasheh, an associate professor of mechanical engineering at Tuskegee University and leader of the project as its principal investigator.

Through the project, entitled Impact of Additive Manufacturing on Aerospace High-Volume Manufacturing and Supply Chain Management: Workforce Alignment through Research and Training, faculty researchers and students at Tuskegee will collaborate with the Bell Helicopter team, an American aerospace manufacturer headquartered in Fort Worth, Texas. Together, they will analyze current manufacturing and supply chain practices and develop executable 3D manufacturing plans for both helicopter and drone applications. In the drone track, university researchers will incorporate 3D printing into the design, build and test phases to improve the functionality and performance of these aircraft. The work will be conducted in increments to allow for continuous assessment of the quality performance of 3D printed parts.

Akasheh will lead a multidisciplinary research team that includes co-principal investigators Vascar Harris, a professor of aerospace science engineering; Mohammad Hossain, an associate professor of mechanical engineering; and Mandoye Ndoye, an assistant professor of electrical and computer engineering.

During the next two years, the project will provide students with innovative opportunities to learn about designing and building aerospace parts using high-volume manufacturing practices, as well as supply chain management. It will also help Tuskegee’s College of Engineering expand its existing additive manufacturing facilities and capabilities for the benefit of future academic and research efforts.

“3D printing offers an incredible advantage to current manufacturing shortfalls that risk the nation’s aerospace industry maintaining its competitive edge and meeting its strategic requirements,” Akasheh continued.

Image Credits: NASA

Indeed, Akasheh is on the right track: a 2019 Ernst and Young report suggests that aerospace and defense players are also increasingly adopting digital and advanced manufacturing technologies in the design and production of their products. Advanced manufacturing technologies, such as 3D printing, help them reduce supply chain lead time, improve reliability and productivity, and simplify designs. For example, to further enhance its advanced manufacturing capabilities, GE announced the acquisitions of Europe-based Arcam AB and Concept Lasers and is establishing a “GE Additive Customer Experience Center” in Germany. Among original equipment manufacturers (OEMs), Boeing has about 50,000 3D printed parts flying on its commercial, space, and military products. Airbus, on the other hand, is focusing on using AM for not only prototyping and parts manufacturing for a wide range of aircraft, but also for spare parts solutions. Simplifying engineering by using can improve time-to-market, quality, product reuse, significantly cut costs, and supply chain complexity.

Other minority-serving institutions funded through this NASA cooperative include the University of Texas at El Paso that proposed a southwest alliance for aerospace and defense manufacturing and talent development, and Virginia State University, in Petersburg, that will create a pilot program to advance all fronts of manufacturing in the sector.

The MUREP Aerospace High-Volume Manufacturing and Supply Chain Management Cooperative will provide almost $1.5 million to fund curriculum-based learning, research, training, internships, and apprenticeships at all three institutions to meet the growing demand for expertise and techniques in high-volume aerospace manufacturing.

Tuskegee University students

For more than a decade, MUREP investments have enhanced the academic, research and technological capabilities of minority-serving institutions through multiyear grants. These institutions recruit and retain underrepresented and underserved students — including women, girls, veterans, and persons with disabilities — into STEM fields. Out of the total 3,289 enrolled students at Tuskegee, 62% are women, while 80% are Black. Encouragement and incentives are a great way to get people interested in the field of study. Additionally, if the gender gap in STEM careers will close sometime in the next 50 years, it will be with initiatives like MUREP that help us do it.

[Image credits: NASA and Tuskegee University]

The post Tuskegee University Selected by NASA to Advance Additive Manufacturing in Aerospace appeared first on 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing.

3D Printing News Briefs: February 8, 2019

We made it to the weekend! To celebrate, check out our 3D Printing News Briefs today, which covers business, research, and a few other topics as well. PostProcess has signed its 7th channel partner in North America, while GEFERTEC partners with Linde on 3D printing research. Researchers from Purdue and USC are working together to develop new AI technology, and the finalists for Additive World’s Design for Additive Manufacturing 2019 competition have been announced. Finally, Marines in Hawaii used 3D printing to make a long overdue repair part, and Thermwood and Bell teamed up to 3D print a helicopter blade mold.

PostProcess Technologies Signs Latest North American Channel Partner

PostProcess Technologies, which provides automated and intelligent post-printing solutions for additive manufacturing, has announced its seventh North American Channel Partner in the last year: Hawk Ridge Systems, the largest global provider of 3D design and manufacturing solutions. This new partnership will serve as a natural extension of Hawk Ridge Systems’ AM solutions portfolio, and the company will now represent PostProcess Technologies’ solution portfolio in select North American territories.

“Hawk Ridge Systems believes in providing turnkey 3D printers for our customers for use in rapid prototyping, tooling, and production manufacturing. Often overlooked, post-printing is a critical part of all 3D printing processes, including support removal and surface finish refinement,” said Cameron Carson, VP of Engineering at Hawk Ridge Systems. “PostProcess Technologies provides a comprehensive line of equipment that helps our customers lower the cost of labor and achieve more consistent high-quality results for our 3D printing technologies, including SL (Vat polymerization), MJF (Sintered polymer), and ADAM (Metal) printing. We vet our partnerships very closely for consistent values and quality, and I was impressed with PostProcess Technologies’ reputation for reliability and quality – an ideal partnership to bring solutions to our customers.”

GEFERTEC and Linde Working Together on 3D Printing Research

Near-net-shaped part after 3D printing. [Image: GEFERTEC]

In order to investigate the influence of the process gas and the oxygen percentage on 3DMP technology, which combines arc welding with CAD data of metal parts, GEFERTEC GmbH and Linde AG have entered into a joint research project. The two already work closely together – Linde, which is part of the larger Linde Group, uses its worldwide distribution network to supply process gases for 3D printing (especially DMLS/metal 3D printing/LPBF), while GEFERTEC brings its arc machines, which use wire as the starting material to create near-net-shaped parts in layers; conventional milling can be used later to further machine the part after 3D printing is complete.

The 3D printing for this joint project will take place at fellow research partner Fraunhofer IGCV‘s additive manufacturing laboratory, where GEFERTEC will install one of its 3D printers. The last research partner is MT Aerospace AG, which will perform mechanical tests on the 3D printed parts.

Purdue University and USC Researchers Developing New AI Technology

In another joint project, researchers from Purdue University and the University of Southern California (USC) are working to develop new artificial intelligence technology that could potentially use machine learning to enable aircraft parts to fit together more precisely, which means that assembly time can be reduced. The work speaks to a significant challenge in the current AM industry – individual 3D printed parts need a high level of both precision and reproducibility, and the joint team’s AI technology allows users to run software components in their current local network, exposing an API. Then, the software will use machine learning to analyze the product data and build plans to 3D print the specific parts more accurately.

“We’re really taking a giant leap and working on the future of manufacturing. We have developed automated machine learning technology to help improve additive manufacturing. This kind of innovation is heading on the path to essentially allowing anyone to be a manufacturer,” said Arman Sabbaghi, an assistant professor of statistics in Purdue’s College of Science.

“This has applications for many industries, such as aerospace, where exact geometric dimensions are crucial to ensure reliability and safety. This has been the first time where I’ve been able to see my statistical work really make a difference and it’s the most incredible feeling in the world.”

Both 3D Printing and AI are very “hot” right now. Outside of the hype there are many ways that machine learning could be very beneficial for 3D printing in coming years in part prediction, melt pool monitoring and prediction, fault analysis and in layer QA. Purdue’s technology could be a possible step forward to “Intelligent CAD” that does much of the calculation, analysis and part generation for you.

Finalists Announced for Design for Additive Manufacturing Challenge

[Image: Additive Industries]

Additive Industries has announced the finalists for its Additive World Design for Additive Manufacturing Challenge, a yearly competition where contestants redesign an existing, conventionally manufactured part of a machine or product with 3D printing, taking care to use the technology’s unique design capabilities, like custom elements and thin walls. This year, over 121 students and professionals entered the contest, and three finalists were chosen in each category, with two honorable mentions – the Unibody Hydraulic System by from Italy’s Aidro Hydraulics & 3D Printing and the Contirod-Düse from Nina Uppenkam, SMS Group GmbH – in the professional category.

“The redesigns submitted from all over the world and across different fields like automotive, aerospace, medical, tooling, and high tech, demonstrated how product designs can be improved when the freedom of additive manufacturing is applied,” said Daan Kersten, CEO of Additive Industries. “This year again we saw major focus on the elimination of conventional manufacturing difficulties, minimization of assembly and lowering logistical costs. There are also interesting potential business cases within both categories.”

The finalist designs are listed below, and can be seen in the image above, left to right, top to bottom:

  • “Hyper-performance suspension upright” from Revannth Narmatha Murugesan, Carbon Performance Limited (United Kingdom, professional)
  • “Cutting dough knife” from Jaap Bulsink, K3D (The Netherlands, professional)
  • “Cold Finger” from Kartheek Raghu, Wipro3D (India, professional)
  • “Brake Caliper” from Nanyang Technological University team (Singapore, student)
  • “Cubesat Propellant Tank” from Abraham Mathew, the McMaster University (Canada, student)
  • “Twin Spark Connecting Rod” from Obasogie Okpamen, the Landmark University (Nigeria, student)

Marines 3D Printed Repair Part 

US Marine Corps Lance Cpl. Tracey Taylor, a computer technician with 7th Communications Battalion, aboard Marine Corps Base Camp Hansen in Okinawa, Japan, is one of the Marines that utilize 3D printing technology to expand capabilities within the unit. [Photo: US Marine Corps Cpl. George Melendez]

To save time by moving past the lengthy requisitioning process, 3D printing was used at Marine Corps Base Hawaii, Kaneohe Bay, to create a repair part that would help fix a critical component to increase unit readiness. This winter, Support Company, Combat Logistics Battalion (CLB) 3 fabricated the part for the Electronic Maintenance (EM) Platoon, 3rd Radion Battalion, and both EM technicians and members of CLB-3 worked together to design, develop, and 3D print the part, then repaired the component, within just one month, after having spent almost a year trying to get around delays to fix it.

US Marine Cpl. Anthony Farrington, designer, CLB-3, said that it took about three hours to design the replacement part prototype, and an average between five to six hours to 3D print it, before it was used to restore the unit to full capability.

“With the use of 3D printing, Marines are empowered to create solutions to immediate and imminent challenges through additive manufacturing innovation,” said subject matter expert US Marine Chief Warrant Officer 3 Waldo Buitrago, CLB-3.

“We need to embrace 3D printing and encourage our Marines to express their creativity, which in turn, could lead to solutions in garrison and combat such as in this case study.”

3D Printed Helicopter Blade Mold

Thermwood and Bell recently worked together to create a 3D printed tool, but not just any 3D printed tool. Thermwood believes that the 3D printed helicopter blade mold is the largest ever 3D printed autoclave-capable tool. Bell, frustrated with expensive tooling that took a long lead time, reached out to Thermwood for help, and the company suggested its LSAM system, with new 60 mm melt core technology. Bell then provided Thermwood with a 20-foot-long, 17-inch-high, 14-inch-wide closed cavity blade mold, and upon receiving both the model and Bell’s tooling requirements, Thermwood began printing the tool with Techmer PM’s 25% carbon fiber reinforced PESU material (formulated specifically for its LSAM additive printing) in a continuous run. The new melt core can achieve a high print rate, even when processing high temperature material, which was great news for Bell.

Glenn Isbell, Vice President of Rapid Prototyping and Manufacturing Innovation at Bell, said, “Thermwood’s aggressive approach to pushing the boundaries and limitations of traditional 3D printing and machining is exactly what we were looking for.”

The final bond tool was able to maintain the vacuum standards required by Bell for autoclave processing right off the printer, without needing a seal coating. Thermwood will soon 3D print the second half of the blade mold, and both teams will complete further testing on PESU 3D printed molds for the purpose of continued innovation.

Discuss these stories and other 3D printing topics at 3DPrintBoard.com or share your thoughts in the Facebook comments below.