A method, equipment and product for arc additive manufacturing of high-strength aluminum alloy components

An aluminum alloy component and additive manufacturing technology, which is applied in arc welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of difficult forming, easy cracking, and many pores, and achieves improvement of melting behavior, suppression of cracks, The effect of suppressing agglomeration

Active Publication Date: 2021-11-09
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an arc additive manufacturing method, equipment and products for high-strength aluminum alloy components, which use MXene nanomaterials to modify high-strength aluminum alloys, and Nanosecond pulsed laser beams are applied during the material manufacturing process to solve the problem of high-strength aluminum alloy arc additive manufacturing, which is difficult to form. At the same time, it solves the problems of many pores, easy cracking, and impurities in the high-strength aluminum alloy additive manufacturing process. It can be prepared Defect-free high-strength aluminum alloy components

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  • A method, equipment and product for arc additive manufacturing of high-strength aluminum alloy components
  • A method, equipment and product for arc additive manufacturing of high-strength aluminum alloy components

Examples

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Effect test

Embodiment 1

[0058] This embodiment takes 7075 aluminum alloy components as an example to describe the manufacturing method of the present invention in detail, where MXene uses Ti 3 C 2 , including the following steps:

[0059] S1 combines 7075 aluminum alloy with Ti 3 C 2 Powder mixed to make 1.2mm diameter Ti 3 C 2 - MXene modified high-strength aluminum alloy welding wire, wherein the mass ratio of high-strength aluminum alloy powder to MXene nanomaterials is 98:2;

[0060] S2 transports the MXene-modified high-strength aluminum alloy welding wire and starts the arc to form a molten pool. At the same time, it provides nanosecond pulse laser to irradiate the arc cathode atomization area at the front of the molten pool. The nanosecond pulse laser power is 100W, and the laser pulse width The scanning speed is 100ns, the scanning speed is 2m / s, and the beam spot diameter is 0.1mm;

[0061] S3 makes the MXene-modified high-strength aluminum alloy welding wire move according to the spec...

Embodiment 2

[0063] This embodiment takes 7050 aluminum alloy components as an example to describe the manufacturing method of the present invention in detail, wherein MXene uses Ti 3 C 2 , including the following steps:

[0064] S1 combines 7050 aluminum alloy with Ti 3 C 2 Material mixed to make 1.2mm diameter Ti 3 C 2 - MXene modified high-strength aluminum alloy welding wire, wherein the mass ratio of high-strength aluminum alloy powder to MXene nanomaterial is 99:1;

[0065] S2 transports the MXene-modified high-strength aluminum alloy welding wire and starts the arc to form a molten pool. At the same time, it provides nanosecond pulse laser to irradiate the arc cathode atomization area at the front of the molten pool. The nanosecond pulse laser power is 200W, and the laser pulse width The scanning speed is 200ns, the scanning speed is 4m / s, and the beam spot diameter is 0.2mm;

[0066] S3 makes the MXene-modified high-strength aluminum alloy welding wire move according to the s...

Embodiment 3

[0068] This embodiment takes 2319 aluminum alloy components as an example to describe the manufacturing method of the present invention in detail, where MXene uses Ti 2 C, specifically including the following steps:

[0069] S1 combines 2319 aluminum alloy with Ti 2 C powder mixed to make 1.5mm diameter Ti 2 C-MXene modified high-strength aluminum alloy welding wire, wherein the mass ratio of high-strength aluminum alloy powder to MXene nanomaterials is 98.5:1.5;

[0070] S2 transports the MXene-modified high-strength aluminum alloy welding wire and starts the arc to form a molten pool. At the same time, it provides nanosecond pulse laser to irradiate the arc cathode atomization area at the front of the molten pool. The nanosecond pulse laser power is 50W and the laser pulse width The scanning speed is 0.1ns, the scanning speed is 10m / s, and the beam spot diameter is 0.15mm;

[0071] S3 makes the MXene-modified high-strength aluminum alloy welding wire move according to the...

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Abstract

The invention belongs to the field of arc additive manufacturing, and specifically discloses an arc additive manufacturing method, equipment and products for high-strength aluminum alloy components, which uses MXene nanomaterials to modify high-strength aluminum alloys, and uses the modified High-strength aluminum alloy is used as the raw material for arc additive manufacturing. During the arc additive manufacturing process, nanosecond laser beams are applied simultaneously to form an enhanced arc cathode atomization cleaning effect to remove impurities, and then prepare defect-free high-strength aluminum alloy components. . The invention can solve the problem of high forming difficulty in high-strength aluminum alloy arc additive manufacturing, and at the same time solve the problems of many pores, easy cracking and many impurities in the high-strength aluminum alloy additive manufacturing process, and can prepare defect-free high-strength aluminum alloy components.

Description

technical field [0001] The invention belongs to the field of arc additive manufacturing, and more specifically relates to an arc additive manufacturing method, equipment and products for high-strength aluminum alloy components. Background technique [0002] With the continuous innovation and development of aerospace, rail transit, new energy vehicles and other fields, the demand for high speed, high range and low energy consumption of vehicles is increasing, and the simultaneous strengthening and lightweight of structures has become one of the important research topics. High-strength aluminum alloy has high strength, toughness, corrosion resistance, and low cost. It is an ideal lightweight material. In addition to using lightweight materials, overall structural optimization and integrated forming are also important methods for lightweighting. Previous studies have shown that complex structures can be integrally formed using additive manufacturing after topology optimization,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/348B23K26/60B23K26/342B23K26/70B33Y10/00B33Y30/00B33Y40/00
CPCB23K26/348B23K26/60B23K26/70B23K26/342B33Y10/00B33Y30/00B33Y40/00C22C21/16C22C21/06B23K9/04B23K9/23B23K2103/10B23K9/235B23K26/0622B23K26/082B23K26/0853B23K26/702B33Y70/00B23K26/352B23K9/042B23K9/232B23K9/328B23K26/0006B23K26/0093B23K26/16B23K26/40
Inventor 张臣刘胜朱俊凯张东斌
Owner WUHAN UNIV
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