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New Application Of Tungsten Powder-Indirect Metal 3D Printing Tungsten Alloy Powder

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Tungsten dust, greyish black metal with metallic shine (body-centred cube crystal). Melting point 3400. Boiling temperature 5555 The tungsten powder is one of the most hard metals. The sintered bar of tungsten is between 200 and 250 hardness. And the rod of tungsten after using a rotary tool is 350 to 400. Combine with hydrofluoric acid and acid dissolved into nitric acid. Combine the sodium hydroxide, sodium carbonate and melt. The nitric acid (sulfuric acid) and aqua regia are slightly solubles. It is insoluble in hydrofluoric and potassium hydroxide. There are two types of tungsten pulver, type a or B. Type A is stable at normal temperature and pressure. Only oxygen can make B-type type tungsten powder. Although it’s stable at lower temperatures than 630, the powder can only be transformed to tungsten when above 630. The process of conversion is irreversible.

There are specific regulations regarding the amount of impurities in tungsten powder. However, it is important to control the oxygen level within a specified range. Fischer’s standard particle size is two to 10mm for most tungsten-based powder. Polygonal particles are the tungsten dust. There are also differences in the specific surface, bulk densities, and tap densities for tungsten dust. Production of tungsten material is directly affected by the performance of the tungsten-pulp powder. The quality of the tungsten powder products metallurgy products also has an effect on their performance, with a greater emphasis being placed on purity and smaller particle sizes. Tungsten is divided into different types according to its properties and the size of its particles.

The melting point for tungsten powder, which is the most common of all the metal elements, is extremely high. Also, its density (19.3 g/cm), and hardness are also high. For instance, tungsten carbide’s hardness is similar to diamond’s. Additionally, tungsten is highly versatile in different fields. For example, cemented carbide is the most common consumer of tungsten.

It is an example of a refractory material, which can be difficult to form and very difficult to use metal 3D printing technology to produce. 3D Science Valley has found that only a handful of companies have begun to explore the possibility of making pure and/or diluted tungsten through 3D printing using the powder bed method. Both are Direct Metal 3D Printing technologies. Manufacturers of tungsten powder are developing two tungsten-alloy powders. The two new tungsten-alloy powders are different from the tungsten-3D printing powders. These materials can be used in indirect metal printing, which is a form of 3D printing with binder injection.

Explore tungsten alloy

A new design possibility

Manufacturers of tungsten powder are creating two tungsten-based powder materials based upon binder jet metal 3D-printing technology: cemented carbide (WC–Co) and copper tungsten [Cu-W].

Cemented carbide, also known as WC-Co (or WC-Co), is a high-hardness and tough material used for the manufacture of cutting tools. Cu-W materials made of copper tungsten are ideal for environments that require high heat resistance and high electrical and/or thermal conductivity.

To make tungsten metal, the traditional process is to first press the tungsten carbide powder and then to increase strength and density by using the sintering method. The binder jet metallic 3D printing process allows for the formation of tungsten metal without the use of a mould. This powder can then be combined with traditional sintering techniques and other processes to increase its strength. 3D printing technology not only allows you to save time and money on mould production but can also allow for the creation of more intricate parts and enhance your parts’ value.

The tungsten powder producers also develop tungsten alloy 3D printer materials. They offer 3D printing service for cemented caride parts.

3D Science Valley

The tungsten powder producers also supply tungsten alloy powders to 3D print EBM or SLM metals. The 3D printing processes of tungsten-alloy powders were examined during their development. Tungsten powder makers have collaborated with partners to conduct a study called “Direct Metal Laser Scattering / Selective laser Melting of Tungsten Pulps” that examines the impact of tungsten dust densification on manufacturing parts of high mechanical properties. Also, the research team examined whether a low apparent density of small spherical particles could be used as raw material in selective laser melting 3D printers.

3D-printing of pure tungsten and tungsten alloys is possible according to market research by 3D Science Valley. Accordingly to Philips medical imaging component manufacturer Smit R ntgen, a range of authentic tungsten components have been manufactured using 3D printed equipment such as SLM 3D manufacturing pinhole collimator pieces in Xray equipment. It is possible to make thin-walled parts using 3D printing. This allows you great flexibility in manufacturing the collimated aperture shape and angle. GE is another major medical imaging company that has created a tungsten collimator with metal 3D printer technology. GE Additive Manufacturing offers EBM3D printing technology for high-temperature materials, such as nickel-based superalloys.

Additive manufacturing is also being developed by a number of companies. A few companies developed parts that can be 3D printed using SLM 3D printing equipment. Parts are thin-walled with only 0.1mm wall thickness. The components of WC-Co’s cemented carbide layer-diamond composite materials and the additive manufacturing process based EBM3D printing technology have been researched by the company. This technology addresses the problem of carbide tool coating peeling. Chemical bonding is achieved by additive manufacturing using materials and processes.

The high-speed and low-cost indirect metal 3D print technology known as binderjet metal 3D printed technology has attracted considerable industry attention. 3D Science Valley remains concerned about whether the indirect 3D printer technology of tungsten alloys that is being promoted and supported by tungsten powder producers will offer quick, lower-cost mass-production options for tungsten-alloy applications.

Luoyang Tech Co. Ltd. (Tungsten powder) has more than 12 years’ experience in chemical products development and research. You can contact us to request high quality Tungsten Powder .

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