What is steel 3D printing powder?
Metal 3D printing is a 3D printing innovation that uses steel powder to directly print metal parts, also known as metal powder sintering (SLM). Most of the metal powders presently utilized in 3D printers consist of stainless steel, lightweight aluminum alloys, cobalt-chromium alloys, copper alloys, titanium alloys, and nickel alloys.
Types of steel 3D printing powder
The kind of steel powder and the 3D printing procedure utilized identify the final product's performance.
1. Stainless steel powder
Relatively affordable steel printing products, high-cost performance, excellent corrosion resistance, high strength, quick and efficient production of small amounts of complex industrial parts.
2. Titanium alloy powder
It is extensively utilized in the aerospace market. Also, the benefits of 3D printing can aid in enhancing item layout, for example, by changing the original solid body with a facility and also a sensible framework to ensure that the weight of the ended-up item is reduced and the mechanical properties are better. This not only reduces costs yet likewise allows lightweight production of individual parts.
3. Aluminum alloy powder
At existing, the aluminum alloy made use of in steel 3D printing mostly consists of lightweight aluminum-silicon AlSi12 as well as AlSi10Mg. AlSi12 is a lightweight additive for the production of steel powder with good thermal residential properties.
4. Cobalt-chromium alloy powder
Metal 3D printing of cobalt-chromium alloy powder, as a result of its exceptional wear and also rust resistance, generally made used for printing different orthopedic implants and synthetic joints, along with the dental field, is additionally valuable.
5. Copper alloy powder
With outstanding thermal and electrical conductivity, copper with superb thermal conductivity in thermal management applications can be integrated with the flexibility of layout to produce intricate inner structures and follow the form of the cooling network.
6. Nickel alloy powder
Nickel alloys are resistant to oxidation and deterioration, making them suitable for high-pressure and also high-temperature severe atmospheres. When nickel alloys are warmed, the alloy surface area will passivate a stable as well as thick oxide layer to safeguard the alloy from internal corrosion. Nickel alloys maintain great mechanical residential or commercial properties over various temperature levels.
How powder products are made use of for 3D printing
A high-energy laser light beam controlled by 3D model information is utilized to partially thaw the metal matrix while sintering, healing the powdered metal materials and automatically stacking them in layers to produce solid and eliminate dense geometry.
3D printing of metal powder efficiency needs
1. Purity
Ceramic inclusions will dramatically minimize the final component's efficiency, and these incorporations generally have a high melting factor; it is challenging to sinter the shape, so the powder should be free of ceramic additions. In oxygen, addition and nitrogen material additionally need to be strictly controlled. Currently, the powder preparation innovation made use of for metal 3D printing is mainly based on the atomization method; the powder has a particular large area, easy to oxidation; in aerospace as well as various other unique applications, the consumer's needs for this index are extra rigid, such as high-temperature alloy powder oxygen web content of 0.006% -0.018%, titanium alloy powder oxygen material of 0.007% -0.013%, stainless-steel powder oxygen content of 0.010% -0.025%.
2. Powder fluidness as well as loose packing thickness
Powder fluidness straight impacts the harmony of the printing process of laying powder and the security of the powder feeding procedure. Movement and powder morphology, fragment size circulation, and also loose-packing density, the bigger the powder fragments, the more routine the bit form, the smaller sized the percentage of really great powder in the bit dimension make-up, the much better its movement; particle density stays the same, the loved one thickness increases, the powder movement is boosted. On top of that, the bit surface area adsorption of water, gas, etc., will reduce powder movement.
3. Powder dimension distribution
Various 3D printing devices and creating processes call for various powder fragment size circulations. Currently, metal 3D printing frequently utilizes powder particle dimension variety 15-53μm (fine powder) as well as 53-105μm (crude powder). 3D printing with steel powder bit size option is mainly based on the various power sources of the metal printer department; the laser is the energy source of the printer because of its focus place penalty, much easier to melt the great powder, suitable for using 15-53μm powder as a consumable, powder replenishment Means for the layer by layer laying powder; electron beam of light as a source of power to lay powder printer, concentrating area somewhat crude, more suitable for melting rugged powder, appropriate for use 53-105μm crude powder as the major; for coaxial powder printer, the fragment dimension of 105-150μm powder can be used as consumables.
4. Powder shape
Powder morphology and powder prep work approaches are carefully associated. Usually, from the gaseous state of metal or molten fluid into powder, powder bit form tends to be spherical; from the solid state right into a powder, powder bits are a more irregular shape, and also, a lot of the powder prepared by the aqueous electrolysis method is dendritic. Typically talking, the higher the sphericity, the much better the flexibility of the powder bits. 3D printing metal powder needs a sphericity of 98% or even more to ensure that it is easier to spread and feed the powder when printing.
Luoyang Tongrun Nano Technology Co., Ltd. takes powder-based 3d printing as the core; the main products are nickel-based superalloy powder such as Inconel 718, Inconel 625, cobalt alloy powder such as CoCrMo, CoCrW, titanium alloy powder such as Ti6Al4V, aluminum alloy powder such as AlSi10Mg, AlSi7Mg, Ferroalloy powder such as SS316L, H13, 18Ni300, stainless steel powder, CuSn10 and so on. If you need
metal 3D printing powder, please feel free to contact us.
