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Method for additive manufacturing of high-entropy alloy part through metal wires

A high-entropy alloy and additive manufacturing technology, used in manufacturing tools, metal processing equipment, welding accessories, etc., can solve the problems of difficult preparation of pre-alloyed powder, waste of alloy raw material powder, and difficulty in real-time control of alloy composition, so as to avoid waste. , low cost, simple and easy preparation of raw materials

Inactive Publication Date: 2018-08-14
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the existing disadvantages of difficult real-time control of alloy composition, waste of a large amount of alloy raw material powder, and difficulty in preparing pre-alloyed powder when manufacturing high-entropy alloy parts through the addition of powder raw materials. Method for Additively Manufacturing High Entropy Alloy Components

Method used

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  • Method for additive manufacturing of high-entropy alloy part through metal wires
  • Method for additive manufacturing of high-entropy alloy part through metal wires
  • Method for additive manufacturing of high-entropy alloy part through metal wires

Examples

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Embodiment 1

[0030] A robot is used to control the processing path, an electric arc is used as a heat source, and a CoCrFeNi four-principal high-entropy alloy part is manufactured by using a metal argon arc welding technology according to the method disclosed in the present invention. The main implementation steps are as follows:

[0031] (1) Establish a three-dimensional model of the high-entropy alloy parts to be manufactured on the computer (such as figure 1 shown), and program the robot machining path according to the 3D model of the part.

[0032] (2) if figure 2 As shown, select pure metal Co, Cr, Fe and Ni wires with a diameter of 0.5 mm, choose one wire for each type, and combine these four pure metal wires into a wire rope.

[0033] (3) Schematic diagram of additive manufacturing equipment such as image 3 shown. During additive manufacturing, the wire rope 6 synthesized by metal wire is loaded into the welding wire reel 14, and one end thereof passes through the welding cont...

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Abstract

The invention discloses a method for additive manufacturing of a high-entropy alloy part through metal wires. The method comprises the specific steps that (1) a three-dimensional module of the to-be-manufactured high-entropy alloy part is established on a computer, and a processing route program is established according to the three-dimensional module; (2) the metal wires of different types required by the to-be-manufactured high-entropy alloy part are combined into a wire rope which is fed into a wire feeding device or a multiple-channel wire feeding device, the wire feeding speed, heat source energy, the scanning speed and protection gas flow are set, and additive manufacturing is conducted through special additive manufacturing equipment or a robot or a numerical control machine tool ormanual work at protective atmosphere or under protection of submerged-arc welding flux; and (3) the high-entropy alloy part is obtained through subsequent treatment of machining, heat treatment, surface treatment and the like on a part blank obtained through additive manufacturing. The method disclosed by the invention is simple and easy to conduct, low in cost and suitable for industrial production of the high-entropy alloy part.

Description

technical field [0001] The invention relates to a method for preparing high-entropy alloy parts through additive manufacturing technology using pure metal or intermediate alloy wire, which belongs to the field of preparation and processing of high-entropy alloys or multi-principal alloys, and also belongs to the additive manufacturing of metal materials technical field. Background technique [0002] High-entropy alloys are a new type of alloy system, also known as multi-principal alloys or multi-element alloys, generally composed of a variety of metal (non-metallic) elements in equimolar ratio or near equimolar ratio. Due to the high entropy effect of mixing multiple elements, the formation of intermetallic compounds is inhibited. High entropy alloys generally consist of simple face-centered cubic solid solution (FCC), body-centered cubic solid solution (BCC) or hexagonal close-packed solid solution (HCP) phase. composition. Compared with traditional alloy systems based on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K9/32
CPCB23K9/04B23K9/32B23K9/325
Inventor 孟军虎张爱军韩杰胜苏博
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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