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In-situ reinforced solid welding wire for welding a welding seam by melting SiC particle reinforced aluminum-based composite material

A technology of particle reinforced aluminum and composite materials, applied in the direction of welding/cutting medium/material, welding medium, welding equipment, etc., to achieve the effect of increasing tensile strength, improving weld strength, and wide application range

Active Publication Date: 2010-01-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the strength of the weld seam obtained by welding particle-reinforced aluminum-based composite materials with existing welding wires can only reach about 40% of that of the base metal; In-situ reinforced solid wire

Method used

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  • In-situ reinforced solid welding wire for welding a welding seam by melting SiC particle reinforced aluminum-based composite material
  • In-situ reinforced solid welding wire for welding a welding seam by melting SiC particle reinforced aluminum-based composite material
  • In-situ reinforced solid welding wire for welding a welding seam by melting SiC particle reinforced aluminum-based composite material

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specific Embodiment approach 1

[0014] Specific implementation mode 1: In this implementation mode, SiC particle reinforced aluminum matrix composite material fusion welding seam in-situ reinforced solid wire consists of 4%-8% SiC, 5%-10% Si, 1.0%-1.8% Ti, 0.1% to 0.3% of Sc, 0.05% to 0.15% of Y, 0.1% to 0.3% of B, 0.3% to 0.8% of Mg and the rest of Al.

[0015] The welding wire described in this embodiment can be used as a filler for TIG, MIG, plasma arc welding, electron beam welding and laser welding. The strength of the welding seam obtained by the welding wire in this embodiment can reach more than 70% of the base metal.

[0016] The welding wire described in this embodiment can be prepared by the following methods, such as hot pressing drawing method or smelting continuous casting drawing method: the hot pressing drawing method uses a method similar to powder metallurgy to convert the required raw materials into solid particles Form mixing is first pressed into a prefabricated block, then extruded and...

specific Embodiment approach 2

[0017] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the SiC particle reinforced aluminum matrix composite material fusion welding seam in-situ reinforced solid core welding wire consists of 5% to 7% SiC, 6% to 8% by mass percentage. %Si, 1.2%-1.6% Ti, 0.1%-0.3% Sc, 0.05%-0.15% Y, 0.12%-0.25% B, 0.3%-0.8% Mg and the rest Al.

[0018] The welding wire described in this embodiment can obtain a weld strength of more than 70.4% of the base metal; the welding wire can be prepared by the method described in Embodiment 1.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one is: SiC particle reinforced aluminum matrix composite material fusion welding seam in-situ reinforced solid core welding wire is composed of 5.5% to 6.5% SiC, 5.5% to 7% by mass percentage %Si, 1.1%-1.5% Ti, 0.1-0.3% Sc, 0.05-0.15% Y, 0.15%-0.2% B, 0.3%-0.8% Mg and the rest Al.

[0020] The welding wire described in this embodiment can obtain a weld strength of more than 70.6% of the base metal; the welding wire can be prepared by the method described in Embodiment 1.

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Abstract

The invention provides an in-situ reinforced solid welding wire for welding a welding seam by melting SiC particle reinforced aluminum-based composite material, which relates to a solid welding wire for welding by melting the SiC particle reinforced aluminum-based composite material. The invention solves the problem that the strength of the welding seam obtained by welding the particle reinforced aluminum-based composite material by using the prior welding wire only can reach about 40% of that of base material. The in-situ reinforced solid welding wire for welding the welding seam by melting the SiC particle reinforced aluminum-based composite material comprises the following components according to the mass percent: 4-8% of SiC, 5-10% of Si, 1.0-1.8% of Ti, 0.1-0.3% of Sc, 0.05-0.15% of Y, 0.1-0.3% of B, 0.3-0.8% of Mg and Al as the rest. The welding wire of the invention has the advantages of good formation of the appearance of the welding seam, increased tensile strength and wide application range. The welding wire can be used as the stuffing for TIG, MIG, plasma arc welding, electron beam welding and laser welding. The strength of the welding seam obtained by welding the particle reinforced aluminum-based composite material by using the welding wire of the invention can reach 70% of that of the base material.

Description

technical field [0001] The invention relates to a solid welding wire for fusion welding of SiC particles reinforced aluminum-based composite materials. Background technique [0002] Aluminum matrix composites, especially particle-reinforced aluminum matrix composites, in addition to the excellent properties of ordinary metal matrix composites, also have low density, high specific stiffness, high specific strength, good corrosion resistance, relatively simple manufacturing process and equipment, The cost is relatively low, and it can be mass-produced on a large scale. It plays an important role in the development and research of metal matrix composite materials. [0003] Inert gas shielded arc welding has the advantages of wide application range, low cost, and flexible welding, so it has become the preferred method for welding complex-shaped components of aluminum matrix composites. [0004] The most commonly used inert gas arc welding is non-melting arc welding (TIG welding...

Claims

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Application Information

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IPC IPC(8): B23K35/28B23K35/40
Inventor 牛济泰龙伟民关绍康卢广玺汤文博程东峰田昊
Owner HARBIN INST OF TECH
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