Technique for preparing special Ti6Al4V alloy powder used for material increase manufacturing

Abstract

The invention discloses a technique for preparing special Ti6Al4V alloy powder used for material increase manufacturing. The technique organically combines vacuumized and water-cooled copper crucible induction smelting with multistage ultrasonic atomization on the basis of ensuring the purity of raw materials, ensures that titanium alloy is not oxidized and metal melt is uniform in temperature and ingredient during smelting to obtain consistent degree of superheat, and can prevent nozzle blockage as well as prevent that liquid drops adhere in the cooling process to from nonspherical particles; powder particles are relatively thinner and uniform and can reach high standards of requirements on particle size distribution, apparent density, oxygen content, liquidity and other performances.

Description

technical field

[0001] The invention relates to the field of metal materials, in particular to a process method for preparing special Ti6Al4V alloy powder for additive manufacturing. Background technique

[0002] The manufacturing industry has always been the pillar of the national economy. With the continuous development of science and technology, the manufacturing industry is also making continuous progress and innovation. The additive manufacturing technology commonly known as "3D printing" is a new type of manufacturing technology developed under this situation. As an important supplement to the traditional manufacturing technologies of subtractive manufacturing and isomaterial manufacturing, additive manufacturing technology is being increasingly widespread attention. Additive manufacturing technology is a technology that uses CAD data to accumulate material layer by layer to manufacture solid parts. It is a bottom-up material accumulation method. Through layer-by-laye...

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