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Spherical tc4 titanium alloy powder for laser 3D printing and preparation method thereof

A 3D printing, titanium alloy technology, applied in metal processing equipment, transportation and packaging, additive processing, etc., to achieve the effect of a wide range of application prospects

Active Publication Date: 2017-08-25
ANSHAN DONGDA LASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestic research on the preparation technology of rotating electrode induction melting TC4 titanium alloy powder is different from foreign products in terms of powder particle size distribution, sphericity, hollow spherical rate, chemical composition, bulk density, fluidity, and oxygen content. There is still a large gap compared with

Method used

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  • Spherical tc4 titanium alloy powder for laser 3D printing and preparation method thereof
  • Spherical tc4 titanium alloy powder for laser 3D printing and preparation method thereof
  • Spherical tc4 titanium alloy powder for laser 3D printing and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The preparation method of the spherical TC4 titanium alloy powder for laser 3D printing specifically comprises the following steps:

[0069] Step 1, preprocessing:

[0070] (1) The raw material TC4 titanium alloy is made into a cylinder as an electrode titanium rod. The diameter of the cylinder is 50mm and the length is 1000mm; then one end of the electrode titanium rod is processed into a 40-degree conical tip with a surface roughness of Ra12.5 , at the other end of the electrode titanium rod, at a distance of 6mm from the top, process an annular slot with a width of 8mm and a depth of 4mm;

[0071] (2) Clean the electrode titanium rod and install it on the electrode control system of 10kg rotating electrode vacuum induction melting. The specific operation is as follows:

[0072] Use No. 1000-2000 metallographic sandpaper to remove oxides and impurities on the surface of the TC4 electrode titanium rod, clean the surface of the TC4 electrode titanium rod with petroleum...

Embodiment 2

[0106] The preparation method of the spherical TC4 titanium alloy powder for laser 3D printing specifically comprises the following steps:

[0107] Step 1, preprocessing:

[0108] (1) The raw material TC4 titanium alloy is made into a cylinder as an electrode titanium rod. The diameter of the cylinder is 50mm and the length is 1000mm; then one end of the electrode titanium rod is processed into a 45-degree conical tip with a surface roughness of Ra15. At the other end of the titanium rod, at a distance of 6mm from the top, process an annular slot with a width of 8mm and a depth of 4mm;

[0109] (2) Clean the electrode titanium rod and install it on the electrode control system of 10kg rotating electrode vacuum induction melting. The specific operation is as follows:

[0110] Use 1000-2000 No. metallographic sandpaper to remove oxides and impurities on the surface of the TC4 electrode titanium rod, clean the surface of the TC4 electrode titanium rod with petroleum ether and al...

Embodiment 3

[0146] The preparation method of the spherical TC4 titanium alloy powder for laser 3D printing specifically comprises the following steps:

[0147] Step 1, preprocessing:

[0148] (1) The raw material TC4 titanium alloy is made into a cylinder as an electrode titanium rod. The diameter of the cylinder is 50mm and the length is 1000mm; then one end of the electrode titanium rod is processed into a 50-degree conical tip with a surface roughness of Ra12.5 , at the other end of the electrode titanium rod, at a distance of 6mm from the top, process an annular slot with a width of 8mm and a depth of 4mm;

[0149] (2) Clean the electrode titanium rod and install it on the electrode control system of 10kg rotating electrode vacuum induction melting. The specific operation is as follows:

[0150] Use 1000-2000 No. metallographic sandpaper to remove oxides and impurities on the surface of the TC4 electrode titanium rod, clean the surface of the TC4 electrode titanium rod with petroleum...

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Abstract

A spherical TC4 titanium alloy powder for laser 3D printing and a preparation method thereof, the titanium alloy powder particles are spherical in shape, the particle size is 1-180 μm, the oxygen content is 0.09-0.14%, and the bulk density is 2.587-2.656g / cm3, the fluidity of the powder with a particle size of 54-150μm is 20.0-30.0s / 50g; the powder with a particle size of 1-54μm can be used for laser 3D printing by powder coating, and the powder with a particle size of 54-150μm can be used for powder feeding Laser 3D printing; preparation method: Titanium alloy is made of an electrode titanium rod with a conical tip at one end, the titanium rod is placed in an induction melting chamber to rotate and induction melting is started, and when the tip forms droplets, the titanium rod rotates and moves vertically downward; The atomization air pressure and induction parameters are adjusted to make the alloy droplets atomized by inert gas in the atomization chamber to form powder; the powder collection device is then used to collect and sieve out powders of different particle sizes for vacuum storage.

Description

technical field [0001] The invention belongs to the technical field of preparation of highly active metal powder for laser 3D printing, and in particular relates to a spherical TC4 titanium alloy powder for laser 3D printing and a preparation method thereof. [0002] technical background [0003] Laser 3D printing technology is an advanced technology that has gradually developed since the early 1980s. This technology can be used for the rapid prototyping of three-dimensional (3D) solid metal parts that bear strong mechanical loads, and can also be applied to the repair of parts with complex shapes and large volumes, manufacturing defects, misprocessing damage, or service damage. Therefore, it has been a frontier research topic at home and abroad since its appearance. So far, the domestic and foreign output value of laser 3D printing related industries has reached billions of dollars, especially with the rapid development of research on large-scale high-power laser devices, 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00C22C14/00B22F9/10B33Y70/00
CPCC22C14/00B22F9/10B33Y70/00B22F1/065
Inventor 陈岁元刘常升董欢欢郭快快梁京蓝天张雯倩
Owner ANSHAN DONGDA LASER TECH CO LTD
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