An aluminum-based welding material for friction stir welding of aluminum/steel filler and its preparation method

A friction stir welding, aluminum-based technology, applied in welding equipment, welding/cutting media/materials, manufacturing tools, etc., can solve the problem of restricting the development of lightweight structures and restricting the promotion and practice of aluminum alloy and steel dissimilar metal composite components Application and other issues, to achieve the effect of promoting high-quality bonding, improving tensile strength, and improving joint strength

Active Publication Date: 2021-09-24
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Based on the above two points of discussion, Al-Si-Cu-Ni-Co filler metals cannot be directly used for friction stir welding of aluminum / steel fillers. Friction stir welding joints have high-strength and high-plasticity-toughness welding consumables at the same time, which restricts the promotion and practical application of aluminum alloy and steel dissimilar metal composite components to a certain extent, and further limits the development of lightweight structures.

Method used

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  • An aluminum-based welding material for friction stir welding of aluminum/steel filler and its preparation method
  • An aluminum-based welding material for friction stir welding of aluminum/steel filler and its preparation method
  • An aluminum-based welding material for friction stir welding of aluminum/steel filler and its preparation method

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Embodiment 1

[0040] Embodiment 1, an aluminum-based welding consumable for friction stir welding of aluminum / steel fillers, comprising the following components by weight percentage: 9% silicon, 4% copper, 2% nickel, the balance is aluminum, and the alloy degree 15%, the preparation method of the aluminum-based welding material comprises the following steps:

[0041] Step 1, ingredients, according to the above-mentioned weight percentage of each component of the aluminum-based welding consumables to prepare the furnace charge, the proportion of aluminum in the form of pure metal, the proportion of silicon, copper, and nickel in the form of an intermediate alloy, cutting the prepared charge into flakes, and repeating Grinding to remove oxides on the surface of the sheet charge, cleaning, drying and weighing. see Figure 5 , pure aluminum, aluminum-silicon master alloy, aluminum-copper master alloy and aluminum-nickel master alloy are stacked from bottom to top to form a placement unit. It s...

Embodiment 2

[0047] Embodiment 2, an aluminum-based welding consumable for friction stir welding of aluminum / steel fillers, comprising the following components by weight percentage: 9% silicon, 4% copper, 3.5% nickel, the balance is aluminum, alloy degree 16.5%, the preparation method of the aluminum-based welding material comprises the following steps:

[0048] Step 1, ingredients, according to the above-mentioned weight percentage of each component of the aluminum-based welding consumables to prepare the furnace charge, the proportion of aluminum in the form of pure metal, the proportion of silicon, copper, and nickel in the form of an intermediate alloy, cutting the prepared charge into flakes, and repeating Grinding to remove oxides on the surface of the sheet charge, cleaning, drying and weighing. see Figure 5 , pure aluminum, aluminum-silicon master alloy, aluminum-copper master alloy and aluminum-nickel master alloy are stacked from bottom to top to form a placement unit. In the ...

Embodiment 3

[0055] Embodiment 3, an aluminum-based welding consumable for friction stir welding of aluminum / steel fillers, comprising the following components by weight percentage: 9% silicon, 4% copper, 6% nickel, the balance being aluminum, alloy degree 19%, the preparation method of the aluminum-based welding material comprises the following steps:

[0056] Step 1, ingredients, according to the weight percentage of each component of the above-mentioned aluminum-based welding consumables, the charge is prepared, the aluminum is proportioned in the form of pure metal, the proportion of silicon, copper, and nickel is in the form of an intermediate alloy, and the prepared charge is cut into flakes, and repeated Grinding to remove oxides on the surface of the sheet charge, cleaning, drying and weighing. see Figure 5 , pure aluminum, aluminum-silicon master alloy, aluminum-copper master alloy and aluminum-nickel master alloy are stacked from bottom to top to form a placement unit. In the ...

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Abstract

The invention discloses an aluminum-based welding consumable for friction stir welding of aluminum / steel fillers, which comprises the following components by weight percentage: 5-10% of silicon, 3-5% of copper, 4-10% of nickel, cobalt ≤3%, the balance is aluminum. It can fully meet the needs of the industrial production of aluminum / steel filler friction stir welding, and improve the tensile performance, ductility and bending performance of the aluminum / steel friction stir welding joint. The invention also discloses a preparation method of the aluminum-based welding material used for the friction stir welding of the aluminum / steel filler, which is relatively concise, does not need to be rolled for casting ingots, and has a high fault tolerance rate.

Description

technical field [0001] The invention belongs to friction stir welding welding materials, in particular to an aluminum-based welding material used for friction stir welding of aluminum / steel filling materials and a preparation method. Background technique [0002] The technical demands of low-carbon development, energy conservation, and resource waste reduction are presented to the processing and manufacturing personnel, which has also become the background of the current scientific research work and actual production and life. With the rapid development of railway passenger cars, automobiles and other mass transportation manufacturing industries, especially the rapid development of high-speed railway passenger cars, aerospace industry, and shipbuilding industry, the trend of lightweight rail vehicles and the use of aluminum instead of steel structures is on the rise. Under the background of the times, friction stir welding is the most effective and direct way to realize the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/28B23K35/40
CPCB23K35/0261B23K35/286B23K35/40
Inventor 许惠斌杨明波李默阳甘贵生杨栋华钟万亮
Owner CHONGQING UNIV OF TECH
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