Sandvik has launched the patent-pending Osprey MAR 55 metallic additive manufacturing device metal powder.
The corporate says the fabric ‘bridges the hole between maraging steels and power steels’ and boasts ‘good mechanical properties and put on resistance.’
Sandvik suggests customers will not have to decide on between good weldability of carbon-free maraging steels and the efficiency of carbon bearing steels. It has been designed for ‘wonderful PBF-LB processability with out the necessity for plate preheating’ and is alleged to be perfect for tooling purposes that require hardness ranges above 50 HRC and put on resistance exceeding that of the 18-Ni class of maraging steels.
Osprey MAR 55 can also be mentioned to indicate enhanced nitriding properties and, when in comparison with 18Ni300 maraging metal, boasts an improved sizzling hardness (as much as 600°C) and a 50% discount in nickel and molybdenum content material. Sandvik claims the leaner composition in MAR 55 considerably reduces each power and emission components, with a 21% discount in embedded CO2 (emission issue tCo2/t) and a discount of 26% in embedded power (KWh/kg) for the uncooked materials make-up in MAR 55 versus 18Ni300. That is based mostly on nominal embedded power components for virgin supplies. If recycled uncooked supplies are used, then power and emissions are additional decreased.
Clients, akin to Seco, a main world supplier of metallic reducing options, have reported an extended service life utilizing MAR 55 in comparison with 18Ni300.
“To me, MAR 55 is the fabric with probably the most curiosity and a spotlight at the moment,” mentioned lngemar Chew, R&D Supervisor at Seco. “It has now, after evaluations and in depth testing, been carried out in our manufacturing. We now have used it each for prototyping and area testing, and merchandise which are operating at the moment in our prospects’ manufacturing.”
Faraz Deirmina, Principal Metallurgist at Powder Options, Sandvik, added: “Earlier than MAR 55, prospects had to decide on between good weldability and efficiency. This new alloy bridges the hole between maraging steels and carbon bearing device steels. It signifies that the alloy is definitely weldable, with distinctive toughness. Additionally, it may be heat-treated with out the necessity for prior expensive resolution annealing (austenitization) or cryogenic remedies. On the similar time its put on and fatigue resistance are just like the carbide strengthened tempered martensitic microstructures of medium carbon device steels.”