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Laser welding method of foamed aluminum green packaging material and application thereof

A technology of laser welding and packaging materials, applied in laser welding equipment, welding media, welding equipment, etc., can solve the problems of porous structures that cannot support their own weight and collapse, and achieve the effects of changing performance, increasing structural density, and increasing weight

Inactive Publication Date: 2012-09-19
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the existence of the porous structure of foamed aluminum, its porous structure cannot support its own weight at high temperature and collapse during the welding process.

Method used

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  • Laser welding method of foamed aluminum green packaging material and application thereof
  • Laser welding method of foamed aluminum green packaging material and application thereof
  • Laser welding method of foamed aluminum green packaging material and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0015] Adopt solid continuous Nd:YAG laser, its model is JK2003SM. The technical parameters of the laser equipment are shown in Table 1.

[0016] Table 1 Main technical parameters of JK2003SM laser

[0017] Average power of maximum output (W)

2000

Output pulse modulation peak power (W)

4000

Fiber Diameter (μm)

600

Pulse frequency Modulation frequency(Hz)

100-1000 adjustable

Spot adjustable diameter range (mm)

0.3-0.9 continuously adjustable

[0018] In order to achieve the relative movement between the laser beam and the filled aluminum alloy, so as to achieve the purpose of welding, the special welding machine used is a multi-axis CNC laser processing machine, and its model is: TDJG-1.

[0019] The aluminum foam used is made of ZL111 aluminum alloy as the base material and pr...

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Abstract

The invention discloses a laser welding method of a foamed aluminum green packaging material and an application thereof. An aluminum alloy with components which are the same with those of foamed aluminum basically is adopted at a weld joint of the foamed aluminum material as a weld joint filling material for performing laser welding. According to the technical scheme disclosed by the invention, by selecting the appropriate weld joint filling material, the collapse of a hole structure during the welding process of the foamed aluminum porous material can be overcome during the laser welding process, the formation of a compact structure at the weld joint can be avoided, a qualified connection joint is finally formed, and the requirements for foamed aluminum connection in the packaging industry can be met.

Description

technical field [0001] The invention relates to the field of welding technology, and more specifically, relates to a laser welding method and application of a foamed aluminum green packaging material. Background technique [0002] The packaging industry is an important part of the national economy and provides important support for the development of the world economy. This industry is known as "a sunrise industry that will never decline" and has unparalleled industrial advantages. [0003] As a new type of packaging material, aluminum foam is based on Al or other alloys, contains a large number of holes, has the function of cushioning energy absorption, and has the characteristics of small specific gravity, light weight, strong heat resistance, and high rigidity. The attention paid to various fields such as packaging and transportation, military protection, aviation, and aerospace has been widely applied to cushioning packaging of vulnerable items, protection of important ...

Claims

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Application Information

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IPC IPC(8): B23K26/32B23K35/28
Inventor 罗震敖三三张迪孟繁亮冯梦楠
Owner TIANJIN UNIV
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