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Tailor-welding molding method for foamed aluminum sandwiched components

A foamed aluminum and sandwich technology, applied in the field of aluminum plate welding, can solve the problems of low metallurgical bonding strength of the plate/core interface, poor compactness and uniformity of the preform, and achieve high density and uniformity, reduce production costs, and improve The effect of preparation efficiency

Active Publication Date: 2016-04-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned technical problems, the present invention provides a tailor-welded forming method of aluminum foam sandwich components, which can solve the problems of poor compactness and uniformity of the prefabricated body prepared by the traditional process, and the low metallurgical bonding strength of the plate / core interface; and the like; Large-area connections can be made to prefabricated bodies, or further tailor-welded with solid plates, and then foamed to prepare AFS components

Method used

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  • Tailor-welding molding method for foamed aluminum sandwiched components
  • Tailor-welding molding method for foamed aluminum sandwiched components
  • Tailor-welding molding method for foamed aluminum sandwiched components

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Embodiment 1

[0048] The present invention comprises the following steps:

[0049] S1. Fully mix the foaming agent and stabilizer powder: the foaming agent is titanium hydride, the powder size is 50 μm, and the mass ratio of the added amount to the two metal plates is 1%; the stabilizer is aluminum oxide powder, the powder size is 1 μm, The mass ratio of the amount added to the two metal plates is 10%;

[0050] S2, the above mixed powder is evenly distributed on the lower 304 stainless steel plate and the ADC06 middle layer aluminum alloy plate, the plate thickness of the ADC06 middle layer aluminum alloy plate is 2mm, the upper layer 304 stainless steel plate is covered, and the thickness of the upper and lower 304 stainless steel plate is 1mm, the size of the three plates is the same, the length is 200mm, and the width is 300mm;

[0051] S3. Install the above-mentioned slab on the working platform of the friction stir welding equipment, and then carry out 8 times of friction stir welding...

Embodiment 2

[0055] The present invention comprises the following steps:

[0056] S1. Fully mix the foaming agent and stabilizer powder: the foaming agent is titanium hydride, the powder size is 50 μm, and the mass ratio of the added amount to the metal plate is 1%; the stabilizer is alumina powder, the powder size is 1 μm, and the added amount The mass ratio to the sheet metal is 10%;

[0057] S2, the above mixed powder is evenly distributed on the lower 6061 aluminum alloy sheet (thickness 1mm) and the ADC06 middle layer aluminum alloy sheet (thickness 2mm); cover the upper layer 6061 aluminum alloy sheet (thickness 1mm), three sheets The size is the same, the length is 200mm, and the width is 300mm;

[0058] S3. Install the above-mentioned slab on the working platform of the friction stir welding equipment, and then carry out 8 times of friction stir welding. The welding process parameters are welding speed 200r / min, welding speed 600mm / min, axial downward pressure 0.1mm, after weldin...

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Abstract

The invention discloses a tailor-welding molding method for foamed aluminum sandwiched components. The tailor-welding molding method for foamed aluminum sandwiched components comprises the following steps: S1, fully mixing foaming agent powder and stabilizing agent powder; S2, uniformly distributing mixed powder on a middle-layer aluminum alloy plate and a metal plate stacked on the bottom surface of the middle-layer aluminum alloy plate, and then stacking a metal plate on the top surface of the middle-layer aluminum alloy plate; S3, carrying out multi-pass welding treatment on the three stacked plates by friction stir welding so as to obtain compact sandwich plates of foamed aluminum metal preforms; S4, carrying out tailor-welding connection on at least two sandwich plates of the foamed aluminum metal preforms, or carrying out tailor-welding connection on the sandwich plates of the foamed aluminum metal preforms and at least one tailor-welding aluminum alloy plate to obtain a tailor-welding component; and S5, placing the tailor-welding component in a mold to heat and foam so as to obtain the foamed aluminum sandwiched components. By the tailor-welding molding method, the foamed aluminum sandwiched components with uniform core aluminum alloy foam structures can be obtained.

Description

technical field [0001] The invention belongs to the technical field of aluminum plate welding, and in particular relates to a tailor welding forming method of foamed aluminum sandwich components. Background technique [0002] Foamed aluminum material is a light weight, multi-void metal material. It has multiple advantages such as high specific strength, high specific stiffness, high strength and toughness, noise reduction and heat insulation, cushioning and vibration reduction, and has broad application prospects in many fields. . However, due to the randomly distributed pore structure of the foam material, the tensile strength and flexural strength of the foamed aluminum are low, and the sandwich structure composite panel of the foamed aluminum sandwich structure is similar to the I-beam, so it has high resistance. Bending strength and tensile strength, and well inherited the excellent properties of aluminum foam, it can be used as high-rigidity structural parts such as ne...

Claims

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Application Information

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IPC IPC(8): B23K20/12
CPCB23K20/122B23K2101/02B23K2103/10
Inventor 胡志力庞秋戴明亮张益雷华林
Owner WUHAN UNIV OF TECH
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