China3D printingNet, April 1, news, Swedish aerospace and defense company Saab (Saab) has successfully tested3D printing, As a repair to its battle-damaged Gripen fighter.
In a recent test flight, a Saab supersonic aircraft was fitted with a replacement hatch made of polymer additives and flew over its Linköping facility.The success of the trial may represent the company’s move towards using3D printingThe rapid repair of spare parts for fighter jets has taken an important step, thereby improving combat effectiveness and reducing the number of parts carried in deployment.
Manager Håkan Stake said: “The potential of this approach means that on-site maintenance personnel can use separately installed spare parts. You no longer need to resort to emergency repair procedures and you don’t have to worry about parts of other malfunctioning aircraft. Development of this project. This also reduces The operating time during maintenance has been reduced.
The initial test of the door after the flight was very good, and there were no visual structural changes during the flight. “
Saab’s Gripen C/D fighter.
First successful to external3D printingThe components were flight tested. Photo by Saab.
Flight test breakthrough
Saab conducted a groundbreaking test flight on Friday, March 19, 2021, marking the first time that Saab has flown any external aircraft on its Gripen fighter.3D printingpart.Given that there was no previous 3D model of the relevant parts (an external hatch cover), the company’s engineers were forced to scan the original documents and use3D printingReplace with an accurate copy.
The hatch is made of durable PA2200 polymer and is installed near the rear fuselage of Saab’s two JAS 39D Gripen fighters. The aircraft can carry jets with a Mach number of 1.2 and fly over the company’s dedicated aircraft manufacturing plant.After the test flight, the tailor-made components did not appear to be damaged, reflecting3D printingIt has the potential to produce similar on-demand spare parts and speed up the recovery of failed aircraft.
Stake and his team have now set out to test alternative materials with the goal of producing flexible parts that can withstand high altitudes and low temperatures.In the future, engineers also intend to develop a container solution that will enable pilots to carry them with them when they are carried to remote locations.3D printingequipment.
Ellen Molin, Senior Vice President and Head of Saab’s Support and Services Department, said: “The test flight of such flight-affected components is an important step because the aircraft (including all its components) must always meet the stringent requirements of the airworthiness process. So increase In terms of operational availability in this area, additive manufacturing will change the rules of the game.”
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Saab3D printingThe hatch panel is installed on one of its Gripen aircraft. Photo by Saab.
Sabo3D printingSuccess
Saab’s recent flight test represents its adoption3D printingAn important step in technology, but Saab has deployed the technology to manufacture multiple internal parts for its aircraft. For the past five years, the company has been working closely with GKN Aerospace to certify parts that can be used for flight, and to develop PBF processes and materials to reduce the cost and delivery time in the aerospace production process.
The company is also a founding member of the AMEXCI consortium, a group of leading Swedish industrialists dedicated to finding production3D printingNew methods of parts and equipment. In the past four years, Saab has worked with companies such as ABB and Scania to participate in 16 different R&D programs, and in the process identified more than 300 unique additive manufacturing applications.
AMEXCI CEO Edvin Resebo explained: “Saab may be the furthest in structured additive manufacturing.” Saab usually mass-produces very complex mid-to-low-end parts. In some areas, performance is better than that of each part. Cost is more important. We are just starting the journey. There is more to come. “
3D printingReady
3D printingThe latest developments in the world make it possible to produce aerospace parts that are critical to flight, and have the durability to withstand even rapid changes in altitude.For example, Boom Supersonic’s XB-1 aircraft is equipped with PBF 3D printing21 types produced by machine manufacturer VELO3D3D printingComponents. In January 2021, the company chose to publish a detailed case study to gain insight into the design, manufacture and completion of supersonic aircraft similar to Concorde.
Honeywell Aerospace’s first flight-critical engine component has been certified by the Federal Aviation Administration (FAA), and is slightly smaller. The bearing box is a key structural element in the ATF3-6 turbofan engine of the Dassault Falcon 20G maritime patrol aircraft.
Elsewhere, companies like Airbus subsidiary Satair have adopted metal3D printingAs a way to produce certified aircraft parts for airline customers. By switching from casting to additive manufacturing, the company was able to manufacture A320ceo wingtip fences faster, more flexible, and cheaper than before.
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