6K Additive/Agile Space Industries
6K Additive and Agile Space Industries have announced that Agile is pursuing certification of 6K Additive-produced Ni625 powder for customer space applications including critical rocket parts.
6K’s Ni625 powder is being certified for use at Agile’s manufacturing facility. The first parts to be produced will be sued in Agile’s A2200 bipropellant hypergolic engine. The engines are powered by a pressure-fed hypergolic bipropellant, which does not require ignition as the hydrazine derivative fuel, M20, and MON3 oxidiser combust on contact.
The engine was designed to weigh 5.9 kg and produce 500-lbf of thrust, underscoring the benefits of lightweighting with AM while delivering ‘tremendous’ power according to 6K.
“By weight, 85% of our engine components are additively manufactured, meaning we rely heavily on AM powders that can withstand the extreme temperatures and forces generated during take-off and flight,” said Kyle Metsger, Director of Additive Technology at Agile. “6K Additive allows us to additively manufacture using high-quality powders that are required for our critical applications, while also helping us meet our environmental goals through their recycling program and sustainably manufactured powders. 6K Additive can deliver extremely consistent powder that allows our production line to run the long build times required for these complex components.”
6K Additive says that traditional development cycles for aerospace components can be more than two decades, but with 3D printing, Agile is able to compress development time down to 12 months.
Metsger added: “A year-long development cycle still sounds like a very long time in many industries, but we are showing the primes in the aerospace industry what the future looks like. Moving to the larger TruPrint 5000 machine gave us the ability to qualify the new parameters for the machine and material simultaneously. In this way, AM allows us to be ‘Agile’ in name and practice.”
Agile’s A2200 engines will be used on a Lunar lander vehicle. The engine was developed to provide ‘maximum performance’ on demanding missions, with a specific impulse of more than 318 seconds according to the company. Using a pintle sleeve throttling mechanism, the engine is capable of deep throttling, providing a smooth ride and fine control for a variety of missions says Agile.
The engine can throttle from 50 to 100% thrust in under 650 milliseconds. Making it suitable for heavily demanding manoeuvring sequences that lunar missions require according to Agile.
Frank Roberts, President at 6K Additive, said: “We are always excited to partner with customers like Agile who leverage our high-quality powders to produce critical rocket parts to land on the moon. The fact that we can enable space exploration while continuing to lead the way with sustainability at home on Earth is the best of both worlds. Agile has a cradle-to-grave mentality around its products, and having 6K Additive supply the company with high-quality, sustainably produced Ni625 and provide an established waste stream to help with its environmental stewardship speaks to our mission of going beyond expectations for our customers.”
