Desktop Metal Qualifies IN625 Nickel Superalloy for 3D Printing of Production Systems –

Desktop Metal (NYSE: DM), a leader in mass production of metal 3D printing, announced that nickel-chromium superalloy IN625 is the latest material suitable for high-volume 3D printing with its industrial production system is and joins 4140 low alloy steel with 17-4PH stainless steel, 316L stainless steel and many others. This nickel alloy is widely used for aerospace, power generation, marine, and chemical processing applications because of its high strength, excellent weldability, corrosion and oxidation resistance, and its ability to withstand extreme, elevated temperatures and pressures for stressed parts.

“As Desktop Metal continues our internal R&D efforts to qualify more materials for the production system platform, we are pleased to offer our customers a comprehensive binder jetting solution for printing fully characterized IN625 with excellent properties. We expect to continue rapidly expanding our materials portfolio in the coming months to accelerate the deployment of our AM 2.0 solutions to produce large-scale end-use metal parts in a growing range of industries and applications, ” said Jonah Myerberg, co-founder and CTO of Desktop Metal.

Construction kit for turbine blades

The production system uses the company’s patent-pending Single Pass Jetting (SPJ) technology to achieve speeds up to 100 times faster than legacy AM platforms for powder bed fusion, combining an open material platform with desktop metal -Engineered binders so users can print high-performance parts from the same low-cost metal powders used in metal injection molding (MIM).

The platform consists of the P-1 printer for volume production and process development applications and the large format P-50 printer for mass production of end-use parts, and the inert processing environment of the production system makes it compatible with many materials, including reactive metals such as aluminum and titanium and high-performance alloys, which brings us back to IN625.

Desktop metal production system

In accordance with ASTM testing requirements, the company’s materials science team has qualified and characterized the superalloy for mass production of strong parts that can withstand extreme environments and high temperatures. As a result, parts that are 3D printed from this material on the production system can reduce material waste, tooling, and production time and part costs.

There are several important use cases for the IN625, such as: B. a hydraulic slide valve used to adjust the flow rates of control valves in oil and gas applications. Usually these coils are assembled from several machine components, but with 3D printing on the production system, each one can be printed as a separate part, which significantly reduces the labor costs for assembly. In addition, IN625 gives these coils the ability to survive in extremely corrosive environments.

Hydraulic coils

Another application is rotor blades for gas or steam turbines in the aerospace industry and, due to their complex cooling channels and geometries, can only be mass-produced with great difficulty. Here, too, IN625 is a good choice of material due to its corrosion resistance, high creep, fracture, tensile, fatigue and thermal fatigue strength. When printing on the production system, these geometries and channels are much easier to manufacture and do not require machining or casting.

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Aircraft engine combustion blocks also have tricky geometries and usually require advanced CAM programming and machining settings to manufacture them. Because IN625 has excellent material properties in environments with extremely high temperatures and forces – such as those found in the aerospace industry – it is a good material for this application.

Combustion block

“As a transformative incinerator company, we are excited to release IN625 for its high temperature and corrosion resistance in flare and sulfur combustion applications. This will give us a lot more flexibility in innovative additive manufacturing designs for some of our toughest applications, ”said Jason Harjo, Director, Mechanical & Electrical Design (Americas), Koch Engineered Solutions.

In addition, this part can be printed near net shape during manufacture on the production system without the need for tools, and only a few machining settings are required to optimize the inside dimensions.

Construction kit for valve plugs

Valve cones are another excellent application for the newly qualified IN625 as they are used to control extremely corrosive fluids in chemical process environments. The superalloy has traditionally been quite difficult to machine and this part has organic curvatures, which means costly and long tool lead times in conventional manufacturing. However, the material is resistant to corrosion and the pressure on the production system allows valves to be tailored in multiple configurations without the need for expensive, unique casting tools for each one.

Modular system for four-way valve housing

Finally, valve bodies that are used to process corrosive fluids in power plants also have complex internal features, which in turn means multi-component assembly if you manufacture four-way valve bodies in conventional production. But IN625’s longevity and corrosion resistance make it a valuable material for making these parts. In addition, manufacturers can reduce the number of parts, production cost, and assembly labor time by using the production system’s SPJ technology to print these packages.

(Source / Pictures: Desktop Metal)

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