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The Influence of Metal 3D Printing Process Chain on the Properties of TC4 Powder

The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Tourists and business trips have plummeted. On the booking website, there are a large number of air tickets for local routes with a price reduction of nearly 90% compared with the original price and only tens of yuan for a one-way trip.
In February, China's aviation industry recorded its largest single-month loss of 24.59 billion yuan, of which airlines lost 20.96 billion yuan.
Data from the Civil Aviation Administration of China showed that in February, the number of passengers traveling by air fell 84.5% year-on-year to 8.34 million.
The stagnation of the Asian aviation industry has brought volatility to Ti6Al4V powder.

In the powder bed laser melting technology, from the production, transportation, storage, printing and recycling of materials, the powder has been under a variety of mechanical and atmospheric environments throughout the process chain, the chemical composition and shape of the powder particles, and the entire process. The characteristics of powder materials may be affected by factors such as the atmosphere, temperature, humidity, and external forces. This article discusses the potentially important influencing factors of TC4 powder in the entire process. The research results can be used in other powder processing and management to ensure the quality of the material throughout the service life and make the SLM process more robust and reliable.

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In order to evaluate the characteristics and batch stability of the powder, the same specifications and two batches produced by TC4-Ti6Al4V(level 5) three different processes (gas atomization EIGA, plasma atomization PA, inductively coupled plasma atomization ICPA) were studied. For powders, the particle size distribution, particle morphology and fluidity of these powders were measured.

The results show that the sizes of the three powder particles are between 15-65 microns, with a Gaussian distribution, but the PA and ICPA powders show a wider particle size distribution compared with the EIGA powder. The flow time measured by the Hall flowmeter is in the range of 14.6s-16.1s, indicating that all powders and batches have good flowability. Electron microscopy results show that the three powders have high spherical shapes, but the EIGA powder particles are slightly elongated, while the ICPA powder contains a lot of satellite powder.


In order to study whether argon protection is required during powder storage, two powder containers were stored under the same conditions of 30°C and 30% relative humidity. One container has been stored intact, and the protective atmosphere of the other container is destroyed by one opening process. After a storage period of ten days, samples for mechanical testing and elemental measurement were prepared.


The results of the tensile test show that the ultimate tensile strength of the sample is basically the same in a protective atmosphere and an unprotected atmosphere; the powder stored in a humid environment has the highest ultimate strength, which is slightly higher than that of the dry powder printed sample 5%, and the elongation rate dropped severely. Gas content measurement confirmed that in a humid environment, the oxygen content of the sample is about 10% higher than that in a dry environment, which leads to material embrittlement.


About KMPASS:

KMPASS is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic,Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, KMPASS dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for Ti6Al4V Powder, please send an email to: sales2@nanotrun.com


For Germany, the largest economy in Europe, the impact of the Russian-Ukrainian conflict on the natural gas market is the most obvious. This also exposed the serious dependence of some German industrial enterprises on Russian natural gas. Some analysts pointed out that the instability of natural gas supply has had a big impact on the German economy and threatened its market competitiveness because alternative energy supplies will not be cheap and difficult to come quickly. Increased uncertainty over natural gas supplies is putting enormous pressure on German manufacturers in sectors ranging from steelmaking to chemical production, especially Germany's large number of small and medium-sized companies.

There will be no shortage of Ti6Al4V powders for the time being, but the market demand for Ti6Al4V powders in the future will also change with the influence of various external factors. If you need Ti6Al4V powders, please feel free to contact us.

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