Preparation method of spherical titanium-alloy powder for 3D printing

A 3D printing, alloy powder technology, applied in the field of additive manufacturing, can solve the problems of uneven particle size of Ti-6Al-4V alloy powder, unable to meet the requirements of 3D printing, irregular shape, etc. Control, high sphericity effect

Inactive Publication Date: 2017-03-15
HEILONGJIANG HEIKE TECH CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem that the existing Ti-6Al-4V alloy powder has uneven particle size and irregular shape and cannot meet the requirements of 3D printing, and provides a method for preparing spherical titanium alloy powder for 3D printing

Method used

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  • Preparation method of spherical titanium-alloy powder for 3D printing
  • Preparation method of spherical titanium-alloy powder for 3D printing
  • Preparation method of spherical titanium-alloy powder for 3D printing

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specific Embodiment approach 1

[0013] The specific embodiment one, the preparation method of the 3D printing spherical titanium alloy powder of the present embodiment is carried out according to the following steps:

[0014] 1. According to the composition of the titanium alloy, add Ti powder and the alloy powder of the elements contained in the ball mill, the ball-to-material ratio is (5-20): 1, fill the ball mill tank with high-purity argon, and the ball mill speed is 200 Under the condition of ~280 rpm, ball mill for 30-80 hours to obtain titanium alloy powder;

[0015] 2. Screen the titanium alloy powder obtained in step 1, and sieve out the titanium alloy powder of 10 to 70 microns;

[0016] 3. Transport the titanium alloy powder obtained in step 2 to thermal plasma spheroidization equipment for spheroidization treatment to obtain spherical titanium alloy powder for 3D printing; wherein the powder delivery amount is 5-20g / min, and the plasma input power is 10 ~50kW, system negative pressure is -2000~-...

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment is different from Embodiment 1 in that the titanium alloy described in step 1 is TC4 (Ti-6Al-4V), TC21, TB8, TA18 or Ti45Nb. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the mass percent concentration of high-purity argon in step 1 is greater than 99.999%. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a preparation method of spherical titanium-alloy powder for 3D printing, relates to a method for manufacturing 3D printing consumables, and aims at solving the technical problems that existing Ti-6Al-4V alloy powder is nonuniform in particle size and irregular in shape, and cannot meet the usage requirement of 3D printing. The method comprises the steps that Ti powder and alloy powder of contained elements are added into a ball mill for ball milling according to components of titanium alloy, and titanium-alloy powder is obtained; and the titanium-alloy powder is screened and conveyed to thermal plasma spheroidizing equipment for plasma spheroidizing in hydrogen-containing gas, and the spherical titanium-alloy powder for 3D printing is obtained. According to the spherical titanium-alloy powder, the particle size is smaller than or equal to 100 micrometers, the spheroidization degree is larger than 95%, and the spherical titanium-alloy powder can be applied to the field of 3D printing manufacturing.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and relates to a method for manufacturing 3D printing consumables, in particular to a method for manufacturing titanium alloy powder for 3D printing. Background technique [0002] 3D printing technology is a metal processing technology developed and gradually matured in recent years. The parts produced by 3D printing have excellent quality and strength. The quality of 3D printing products mainly depends on two factors, printing equipment and consumables used. At present, the consumables for 3D printing are very limited, and the consumables used in my country mainly rely on imports. The price of metal consumables for industrial applications is very expensive, which is an important factor restricting the use of 3D printing products. [0003] Ti-6Al-4V is currently the most widely used metal consumable for 3D printing. It is an equiaxed martensitic α+β titanium alloy developed by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/04B33Y70/00
CPCB22F9/04B33Y70/00B22F2999/00B22F1/065B22F1/14B22F2201/11B22F2201/013B22F2202/13
Inventor 宋美慧李艳春张煜李岩张晓臣苏桂明刘洪成
Owner HEILONGJIANG HEIKE TECH CO LTD
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