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Aluminum-silicon-based welding wire for electric arc additive manufacturing and preparation method of aluminum-silicon-based welding wire

A welding wire, aluminum-silicon technology, applied in arc welding equipment, manufacturing tools, additive processing, etc., can solve the requirements that limit the development of the arc additive manufacturing industry, cannot expand the performance optimization of the arc additive manufacturing industry, and the direct application performance is low. And other issues

Active Publication Date: 2019-10-18
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct application performance of the aluminum-silicon welding wire used for welding in arc additive manufacturing is low, and it is impossible to expand the requirements of the arc additive manufacturing industry for performance optimization, which limits the further development of the arc additive manufacturing industry. The primary task of manufacturing industry applications is to establish a new welding wire system and standards for arc additive manufacturing

Method used

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  • Aluminum-silicon-based welding wire for electric arc additive manufacturing and preparation method of aluminum-silicon-based welding wire
  • Aluminum-silicon-based welding wire for electric arc additive manufacturing and preparation method of aluminum-silicon-based welding wire
  • Aluminum-silicon-based welding wire for electric arc additive manufacturing and preparation method of aluminum-silicon-based welding wire

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Put 315g of pure aluminum and 660g of Al-Si intermediate alloy in a crucible, wait for it to melt, add JZF-03 type covering agent to cover evenly, then heat up to 750°C for melting; after melting in the crucible, Mg particles 11g, Al-Ce intermediate After 10.25g of alloy and 4.2g of Mn powder, add JZJ type harmless aluminum alloy refining agent for degassing refining, the temperature is 650-750°C, and the ingot is obtained after the melt is left to stand for 45 minutes; the ingot is homogenized and annealed, That is, keep the temperature at 510°C for 36h. The fully homogenized aluminum alloy casting slab is extruded into an aluminum alloy wire billet with a diameter of 20mm by an extrusion machine, the extrusion ratio is controlled at 10, and the extrusion speed is 1.5-3.0m / min; the drawing is divided into multiple passes, And the drawing and stress relief annealing are carried out alternately, the drawing elongation decreases with each pass, the temperature range of st...

Embodiment 2

[0053] Put 255g of pure aluminum and 710g of Al-Si master alloy in a crucible, wait for it to melt, add JZF-03 type covering agent to cover evenly, then heat up to 780°C for melting; add 10g of Mg grains and Al-Ce master alloy in turn in the crucible After 20g and 5.5g of Mn powder, add JZJ type harmless aluminum alloy refining agent for degassing and refining, the temperature is 650-750°C, and the ingot is obtained after the melt is left to stand for 40 minutes; the ingot is homogenized and annealed, that is, Insulate at a temperature of 505°C for 32h. The fully homogenized aluminum alloy casting slab is extruded into an aluminum alloy wire billet with a diameter of 20mm by an extrusion machine, the extrusion ratio is controlled at 10, and the extrusion speed is 1.5-3.0m / min; the drawing is divided into multiple passes, And the drawing and stress relief annealing are carried out alternately, the drawing elongation decreases with each pass, the temperature range of stress reli...

Embodiment 3

[0059] Put 239g of pure aluminum and 730g of Al-Si master alloy in a crucible, wait for it to melt, add JZF-03 type covering agent to cover evenly, then heat up to 810°C for melting; after melting in the crucible, add 6g of Mg particles, Al-Ce After 20g of master alloy and 6g of Mn powder, add JZJ type harmless aluminum alloy refining agent for degassing refining, the temperature is 650-750°C, and the ingot is obtained after the melt is left to stand for 35 minutes; the ingot is homogenized and annealed, that is Insulate at a temperature of 500°C for 30h. The fully homogenized aluminum alloy casting slab is extruded into an aluminum alloy wire billet with a diameter of 20mm by an extrusion machine, the extrusion ratio is controlled at 10, and the extrusion speed is 1.5-3.0m / min; the drawing is divided into multiple passes, In addition, drawing and stress relief annealing are carried out alternately, the drawing elongation decreases with each pass, the temperature range of stre...

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Abstract

The invention provides an aluminum-silicon-based welding wire for electric arc additive manufacturing and a preparation method of the aluminum-silicon-based welding wire, the reinforcing mode of the aluminum-silicon-based welding wire comprises alloy compensation and alloy strengthening; and the aluminum-silicon-based welding wire is composed of the following components, in percents by mass, Al-Si(6.5%-7.5%)-Mg(0.4%-1%)-Ce(0.4%-1%)-Mn(0.4%-0.6%). The preparation method comprises the following steps that pure aluminum, Al-Si intermediate alloy, Mg particles, Al-Ce intermediate alloy and Mn powder are used as raw materials to prepare a cast blank, and after homogenization heat treatment, the cast blank is subjected to hot extrusion, drawing and surface treatment, so that the welding wire isobtained. The aluminum-silicon-based welding wire is suitable for the electric arc additive manufacturing technology.

Description

technical field [0001] The invention relates to an aluminum-silicon-based welding wire and a preparation method thereof, in particular to an aluminum-silicon-based welding wire for arc additive manufacturing and a preparation method thereof. Background technique [0002] Aluminum alloy has high specific strength, specific modulus, fracture toughness, fatigue strength and corrosion resistance, and also has good forming process and weldability, and the cost is relatively low. Therefore, it has become a It is the most widely used non-ferrous metal structural material in the fields of train, chemical industry and military. [0003] Metal additive manufacturing technology does not require molds, and can be directly formed according to the three-dimensional model of the part. It has the characteristics of short manufacturing cycle and low production cost of small batch parts. It can solve the problem of rapid response in the model development stage. achieved rapid development. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/40B23K9/04B33Y40/00
CPCB23K9/04B23K35/0261B23K35/286B23K35/40B33Y40/00
Inventor 李险峰夏存娟邓亚琪陈东王浩伟
Owner SHANGHAI JIAO TONG UNIV
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