October 1, 2018 | International, Naval
U.S. Navy research contract could make complex metal additive manufacturing a reality both in production centers and deep in the field
DENVER, Oct. 1, 2018 /PRNewswire/ -- Today, 3-D printing generates parts used in ships, planes, vehicles and spacecraft, but it also requires a lot of babysitting. High-value and intricate parts sometimes require constant monitoring by expert specialists to get them right. Furthermore, if any one section of a part is below par, it can render the whole part unusable. That's why Lockheed Martin (NYSE: LMT) and the Office of Naval Research are exploring how to apply artificial intelligence to train robots to independently oversee—and optimize—3-D printing of complex parts.
The two-year, $5.8 million contract specifically studies and will customize multi-axis robots that use laser beams to deposit material. The team will develop software models and sensor modifications for the robots to build better components.
Lockheed Martin Metal 3D printer
"We will research ways machines can observe, learn and make decisions by themselves to make better parts that are more consistent, which is crucial as 3-D printed parts become more and more common," said Brian Griffith, Lockheed Martin's project manager. "Machines should monitor and make adjustments on their own during printing to ensure that they create the right material properties during production."
Researchers will apply machine learning techniques to additive manufacturing so variables can be monitored and controlled by the robot during fabrication.
"When you can trust a robotic system to make a quality part, that opens the door to who can build usable parts and where you build them," said Zach Loftus, Lockheed Martin Fellow for additive manufacturing. "Think about sustainment and how a maintainer can print a replacement part at sea, or a mechanic print a replacement part for a truck deep in the desert. This takes 3-D printing to the next, big step of deployment."
Currently, technicians spend many hours per build testing quality after fabrication, but that's not the only waste in developing a complex part. It's common practice to build each part compensating for the weakest section for a part and allowing more margin and mass in the rest of the structure. Lockheed Martin's research will help machines make decisions about how to optimize structures based on previously verified analysis.
That verified analysis and integration into a 3-D printing robotic system is core to this new contract. Lockheed Martin, along with its strong team, will vet common types of microstructures used in an additive build. Although invisible from the outside, a part could have slightly different microstructures on the inside. The team will measure the performance attributes of the machine parameters, these microstructures and align them to material properties before integrating this knowledge into a working system. With this complete set of information, machines will be able to make decisions about how to print a part that ensures good performance.
The team is starting with the most common titanium alloy, Ti-6AI-4V, and integrating the related research with seven industry, national lab and university partners.
About Lockheed Martin
Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company that employs approximately 100,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. This year the company received three Edison Awards for ground-breaking innovations in autonomy, satellite technology and directed energy.
SOURCE Lockheed Martin
March 7, 2022 | International, Aerospace
As the German government weighs its options, there is no deadline for Berlin to opt into the attack-helicopter program later, an Airbus spokesperson told Defense News.
February 25, 2019 | International, Aerospace
Sanjeev Miglani NEW DELHI (Reuters) - Lockheed Martin offered India on Wednesday a new combat jet to be made locally, the F-21, in an attempt to win a large military order worth more than $15 billion. The U.S. defense firm had previously offered its F-16 fighter used by countries around the world for the Indian air force's ongoing competition for 114 planes to be made in India. But Lockheed, unveiling the plan at an air show in the southern city of Bengaluru, said it was offering India a new plane configured for its needs. It would carry technologies from its fifth generation planes, the F-22 and the F-35, the firm said. “The F-21 is different, inside and out,” Vivek Lall, vice president of Strategy and Business Development for Lockheed Martin Aeronautics, said in a statement. The company will build the plane in collaboration with India's Tata Advanced Systems, the firm said. Lockheed is competing with Boeing's F/A-18, Saab's Gripen, Dassault Aviation's Rafale, the Eurofighter Typhoon and a Russian aircraft for the air force order. The deal to replace the Indian Air Force's ageing fleet of Soviet-era fighter jets is one of the biggest contracts for such planes in play. India has a lengthy procurement process, and no decision is expected until well after a national election due by May. Lockheed has offered to move its F-16 production plant at Fort Worth, Texas, to India, if it wins the order in a boost for Prime Minister Narendra Modi's Make-in-India plan to build a domestic military industrial base and create jobs. It said it expected to export planes from the proposed plant in India on top of the Indian requirements for an overseas market that it estimated at $20 billion. But the Indian military has had concerns over the F-16 as an old plane and in an earlier competition it lost out to the eventual winner, the Rafale built by Dassault. But Lockheed said the F-21 could be India's pathway to the stealth F-35 fighter, which has entered U.S. service in one of the world's most expensive defense programs. “The F-21 has common components and learning from Lockheed Martin's 5th Generation F-22 and F-35 and will share a common supply chain on a variety of components,” the company said. It said production in India would create thousands of jobs for Indian industry as well as support hundreds of U.S.-based Lockheed Martin engineering, program management and customer support positions. https://www.reuters.com/article/us-airshow-india-lockheed/lockheed-unveils-new-f-21-fighter-jet-configured-for-india-idUSKCN1Q90ED
September 2, 2022 | International, C4ISR