Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of tial alloy wire for 3D printing and preparation method thereof

A 3D printing and alloy wire technology, applied in the field of 3D printing and material preparation, can solve the problems of difficulty in preparing TiAl alloy wire, high deformation resistance of TiAl alloy, and high preparation cost, and achieves increased supercooling and refined structure. , smooth surface effect

Active Publication Date: 2018-07-17
QINGDAO TECHNOLOGICAL UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the atomization method is generally used to prepare TiAl alloy spherical powder, which has been researched and developed in the field of 3D additive manufacturing of TiAl alloy, but the preparation of TiAl alloy spherical powder still has high preparation costs and impurities. high content problem
In the process of preparing TiAl continuous filaments, because of the high deformation resistance and brittleness of TiAl alloys, it is difficult to use the traditional spinning process to prepare TiAl alloy wires.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of tial alloy wire for 3D printing and preparation method thereof
  • A kind of tial alloy wire for 3D printing and preparation method thereof
  • A kind of tial alloy wire for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of the TiAl alloy wire for 3D printing includes step S1: according to the target TiAl alloy wire composition ratio, the raw materials are mixed and smelted to obtain the TiAl alloy, wherein the raw materials include sponge titanium, aluminum, Al-Nb master alloy (aluminum-Nb Niobium master alloy), Al-V master alloy (aluminum-vanadium master alloy), Al-W master alloy (aluminum-tungsten master alloy) and Al-Mo master alloy (aluminum-molybdenum master alloy).

[0030] Among them, the sponge titanium is preferably military-grade sponge titanium, and the purity of the raw materials is above 99.9%, preferably above 99.99%. When preparing raw materials, raw materials can be prepared according to atomic percentages according to different TiAl alloy wires to be prepared, such as Ti-44Al-8.5Nb-4V, Ti-44Al-8Nb-0.2W, etc.

[0031] When mixing and smelting the raw materials, the smelting conditions are: smelting at 2000-3000°C for 2-3 minutes. The smelting is ...

Embodiment 1

[0042] The preparation method of the TiAl alloy wire used for 3D printing provided in this embodiment comprises the following steps:

[0043] Step S1: Using military-grade sponge titanium, high-purity Al, Al-Nb master alloy and Al-V master alloy as raw materials, the purity of all raw materials is 99.99%, and preparing Ti-44Al-8.5Nb-4V by atomic percentage TiAl alloy, using VAR vacuum consumable melting furnace, at 2200 ° C, the front and back sides are alternately smelted 5 times, each time for 3 minutes;

[0044] Then, the TiAl alloy is cut and grown into a 10cm, 9mm diameter TiAl alloy column by electric discharge wire, and the TiAl alloy column is sanded, ultrasonically cleaned and dried in sequence;

[0045] Step S2: Carry out 5 cycles of evacuating and argon filling the cavity of the melt pumping equipment. The purity of argon is 99.5%. After filling with argon, the ambient pressure is maintained at 1 atm;

[0046] Use a water-cooled copper crucible with a diameter of 1...

Embodiment 2

[0050] The preparation method of the TiAl alloy wire used for 3D printing provided in this embodiment comprises the following steps:

[0051] Step S1: Using military-grade sponge titanium, high-purity Al, Al-Nb master alloy and Al-W master alloy as raw materials, the purity of all raw materials is 99.995%, and preparing Ti-44Al-8Nb-0.2W by atomic percentage TiAl alloy, using VAR vacuum consumable melting furnace, at 3000 ° C, the front and back sides are alternately smelted 5 times, each time for 2 minutes;

[0052] Then, the TiAl alloy is cut and grown into a 10cm, 9mm diameter TiAl alloy column by electric discharge wire, and the TiAl alloy column is sanded, ultrasonically cleaned and dried in sequence;

[0053] Step S2: Carry out 5 cycles of evacuating and argon filling the cavity of the melt pumping equipment. The purity of argon is 99.9%. After filling with argon, the ambient pressure is maintained at 0.8 atm;

[0054] Use a water-cooled copper crucible with a diameter o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
purityaaaaaaaaaa
Login to View More

Abstract

The invention provides a TiAl alloy wire for 3D printing and a preparation method thereof, and relates to the technical fields of 3D printing and material preparation. The preparation method of TiAl alloy wire for 3D printing includes several steps of batch melting, heating and melting, and spraying. The preparation method is a new production method, can prepare TiAl alloy wire, realizes industrialized production of TiAl alloy wire preparation, and has simple steps and convenient operation. The prepared TiAl alloy wire has a smooth surface and a size that meets industrial requirements, and can be applied in the field of 3D printing technology.

Description

technical field [0001] The invention relates to the technical field of 3D printing and material preparation, in particular to a TiAl alloy wire for 3D printing and a preparation method thereof. Background technique [0002] 3D additive manufacturing is the current near-clean, one-time advanced technology, which is widely used in the preparation of aerospace and other structural parts, especially suitable for the preparation of products using Ti alloys, TiAl alloys, etc. as raw materials. TiAl alloy is a high-temperature and high-strength structural material with high specific strength and specific modulus, as well as excellent high-temperature oxidation resistance and creep resistance, but the preparation and processing of TiAl alloy is difficult, thus limiting the development and development of TiAl alloy. Engineering applications. [0003] Specifically, the material forms required for 3D additive manufacturing are generally divided into two types: one is spherical powder,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03B22D11/06
CPCC22C1/03B22D11/0611B22F10/00B22F10/20Y02P10/25
Inventor 张树玲陈玉勇张树志陈炜晔于永川耿桂宏
Owner QINGDAO TECHNOLOGICAL UNIVERSITY