Numerous companies entered the metal powder market after the development of the additive industry. In the rapid-growing additive manufacturing industry, titanium alloys (superalloys) have steadily become the dominant materials. The requirements of additive manufacturing require that titanium alloys and hightemperature alloy powders be unique in size and purity. This is to ensure high-quality and stable component production.
As the aerospace industry has grown rapidly, and especially with the advancement of high-speed vehicles and engines, there has been a significant increase in titanium alloy material demand. For aircraft that have a reduced weight or high thrust to-weight ratio, titanium alloys can be found in blades, compressor wheels, integral blade disks (casings), rotors and missile rudders wing skeletons, cabins and engine inlets—manufacturing airway and other components. The aerospace industry is advancing in performance, so there are higher standards for high-temperature aluminum alloys.
Canadian patent-pending plasma milling technology will allow a Canadian company to manufacture high-sphericity titanium powder. It can then be used by the aerospace and medical industry to supply additive manufacturing powder. Plasma milling will be utilized by the company to produce powders suitable for metal additive production. One of the advantages of plasma milling is its ability to create metal powders that are spherical and with excellent control over particle size distribution. In addition, the company is developing next-generation plasmamilling equipment that will produce many additive manufacturing metals as well as composite powders.
TA32 titanium alloy, whose nominal composition is Ti-5.5Al-3.5Sn-3Zr-1Mo-0.5Nb-0.7Ta-0.3Si, is a new type of near-alpha titanium alloy newly developed. It has a low temperature of 550. With its good creep and lasting properties, the material can replace other steel or nickel superalloys. Its short-term service temperature is 600 F. The material has great comprehensive mechanical properties. These include tensile strength, fatigue resistance, creep and creep.
Additive Manufacturing.
This technology uses water-cooled crucible vacuum smelting atomization gas atomization technology to finish the development of TA32 Titanium alloy powder. This technology uses electromagnetic heating to melt titanium alloy rods using a water-cooled coppercrucible. Molten material is created by bottom injection. It forms a small, stable flow when the liquid is introduced to the tube. If the mixture liquid flows past the nozzle into the atomizing nostril, the high-speed nozzle airflow will be crushed to create fine powder particles.
It was discovered that the TA32 titanium-alloy powder made by this process has high purity. Several tests of performance were done on the TA32. They had a particle diameter range from 15 to 53m. The contents of many impurity elements were far lower than the requirements set forth in the GB /T3620.1 -2016 standards. These properties were also tested. The median particle size (d50) of TA32 powder were 36m. The bulk density was 2.4 g/ cm3. The Hall flow rate for this material was 45 s/ 50g.
The control of the laser energy content allowed TA32 aluminum alloy powder to undergo laser selective melting 3D print forming tests with different process parameters. The metallographic analysis results demonstrated that the grain size was quite small in the TA32 powder for laser selective melting forming. Furthermore, results from mechanical testing of the test specimen showed that it had a 1200MPa and 88% tensile force and length at roomtemperature. The high-temperature test pieces show tensile strengths up to 867 MPa, 819MPa, and 712MPa respectively at temperatures between 500 °C, 500 °C, 550°C and 600°C. Additionally, the plastic values are 14.4%, 15.9%, 17.0% and excellent mechanical characteristics.
TRUNNANO (Luoyang Trunnano Tech Co. Ltd.) has more than 12 years in the chemical products research and manufacturing industry. For high quality Nitinol Titanium, contact us today and submit an inquiry.
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