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Aluminum alloy powder core wire for arc welding additive manufacturing

An additive manufacturing, aluminum alloy powder technology, applied in manufacturing tools, welding/cutting media/materials, welding media, etc., can solve the problems of long processing cycle, many pores in the finished product, difficult component adjustment, etc., to reduce pores, reduce Porosity, the effect of avoiding hydrogen embrittlement

Inactive Publication Date: 2019-08-30
新乡市和光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of solid aluminum alloy wire is difficult to process, the processing cycle is long, and the composition adjustment is difficult
The aluminum alloy wire with powder core can be easily adjusted and has the advantages of environmental protection and high utilization rate. However, the aluminum alloy wire with powder core in the prior art has the problem of many pores in the finished product.

Method used

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  • Aluminum alloy powder core wire for arc welding additive manufacturing
  • Aluminum alloy powder core wire for arc welding additive manufacturing
  • Aluminum alloy powder core wire for arc welding additive manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The aluminum strip made of 5056 aluminum alloy is rolled into a U-shaped tube through the forming groove, and then filled with powder core in the U-shaped tube. The mass of the powder core accounts for 8% of the total mass of the aluminum alloy powder core wire. Wherein, the composition of the powder core is: calcium-silicon alloy powder (the mass percentage of Ca in the calcium-silicon alloy powder is 31.5%, the mass percentage of Si is 62.5%, the mass percentage of C is 0.5%, and the balance Fe), aluminum powder, titanium powder and silicon-zirconium alloy (the mass percentage content of Zr in the silicon-zirconium alloy powder is 38.4%, the mass percentage content of Si is 50.8%, the mass percentage content of C is 0.5%, and the rest Fe), chromium powder, and manganese powder; among them: the content of Ca element accounts for 2.0% of the total mass of the powder core, the content of titanium element accounts for 10% of the total mass of the powder core, and the conte...

Embodiment 2

[0032] The aluminum strip made of 5056 aluminum alloy is rolled into a U-shaped tube through the forming groove, and then filled with powder core in the U-shaped tube. The mass of the powder core accounts for 8% of the total mass of the aluminum alloy powder core wire. Wherein, the composition of the powder core is: silicon-barium alloy powder (the mass percentage of Ba in the silicon-barium alloy powder is 35.0%, the mass percentage of Si is 35.0%, the mass percentage of C is 0.3%, and the balance Fe), aluminum powder, titanium powder and silicon-zirconium alloy (the mass percentage content of Zr in the silicon-zirconium alloy powder is 38.4%, the mass percentage content of Si is 50.8%, the mass percentage content of C is 0.5%, and the rest Fe), chromium powder, and manganese powder; among them: the content of Ba element accounts for 1.5% of the total mass of the powder core, the content of titanium element accounts for 10% of the total mass of the powder core, and the content...

Embodiment 3

[0035]The aluminum strip made of 5056 aluminum alloy is rolled into a U-shaped tube through the forming groove, and then filled with powder core in the U-shaped tube. The mass of the powder core accounts for 8% of the total mass of the aluminum alloy powder core wire. Wherein, the composition of the powder core is: silicon-strontium alloy powder (the mass percentage of Sr in the silicon-strontium alloy powder is 52%, the mass percentage of Si is 45%, the mass percentage of S is 0.5%, the mass percentage of Al The mass percentage content is 2%, the balance is C), aluminum powder, titanium powder, silicon-zirconium alloy (the mass percentage content of Zr in the silicon-zirconium alloy powder is 38.4%, the mass percentage content of Si is 50.8%, and C The mass percentage content is 0.5%, and the balance is Fe), chromium powder, and manganese powder; wherein, the content of silicon-strontium alloy powder accounts for 3.0% of the total mass of the powder core, and the content of ti...

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Abstract

The invention discloses an aluminum alloy powder core wire for arc welding additive manufacturing. The aluminum alloy powder core wire comprises an aluminum alloy metal skin and a powder core; the powder core internally contains one or few of barium, strontium, or calcium of second main group elements, the powder core further comprises manganese nitride, and the content of manganese nitride is 5%or below of the total mass of the powder core. One or few of barium, strontium, or calcium of the second main group elements are added into the powder core of the aluminum alloy powder core wire for arc welding additive manufacturing, air holes generated by hydrogen in the manufactured finished product can be reduced, the porosity is reduced, and meanwhile, the hydrogen embrittlement caused by hydrogen can be avoided.

Description

technical field [0001] The invention relates to an aluminum alloy metal powder core wire for additive manufacturing, in particular to an aluminum alloy powder core wire for arc welding additive manufacturing. Background technique [0002] In the past 30 years, additive manufacturing technology has received more and more attention in the process manufacturing industry, especially in the mold manufacturing and molding industries, and additive manufacturing technology has significantly shortened the production cycle of products. Additive manufacturing technology mainly includes wire feeding additive manufacturing technology and powder feeding manufacturing technology. Compared with powder-fed additive manufacturing technology, wire-fed additive manufacturing technology uses metal wire as the filling material. Its material utilization rate can reach 100%, and its additive efficiency is much higher than powder feeding additive manufacturing technology, which can reach 2500cm 3 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/02B23K35/28
CPCB23K35/0266B23K35/286
Inventor 张晓尹玉环赵慧慧
Owner 新乡市和光科技有限公司
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