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Method for controlling gaps of laser fusion weld plates of aluminum alloy vehicle bodies

A control method, laser melting technology, applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve problems such as quality defects, and achieve the effect of low processing cost, simple process and easy implementation

Inactive Publication Date: 2016-10-26
ANHUI JEE AUTOMATION EQUIP CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

However, compared with ordinary galvanized sheets, the cooling speed of aluminum alloy laser welding is faster, and the hydrogen gas that escapes too late will cause hydrogen gas holes, thus forming quality defects

Method used

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  • Method for controlling gaps of laser fusion weld plates of aluminum alloy vehicle bodies
  • Method for controlling gaps of laser fusion weld plates of aluminum alloy vehicle bodies
  • Method for controlling gaps of laser fusion weld plates of aluminum alloy vehicle bodies

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Experimental program
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Embodiment Construction

[0020] see figure 2 In this embodiment, the laser welding plate is formed with an overlapping area between the outer plate 1 and the inner plate 2, and the laser welding seam 3 is formed between the edge of the outer plate and the outer surface of the inner plate along the edge of the outer plate.

[0021] see figure 1 In this embodiment, the method for controlling the gap between the laser welding panels of the aluminum alloy vehicle body is: in the overlapping area, a protrusion 4 is formed on the outer surface of the inner panel 2, and the outer surface of the inner panel 2 refers to the position where the outer panel 1 is located. On the surface of the inner plate on the side, the protrusion 4 is used to maintain a gap in the overlapping area between the clamped outer plate 1 and the inner plate 2 during the laser welding process, and the height of the gap is the height of the protrusion 4 .

[0022] In specific implementation, such as Figure 4 As shown, the protrusio...

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Abstract

The invention discloses a method for controlling gaps of laser fusion weld plates of aluminum alloy vehicle bodies. Overlap regions are formed between outer plates and inner plates of the laser fusion weld plates, laser fusion weld seams penetrate the overlap regions, and the inner plates and the outer plates are welded with one another. The method for controlling the gaps of the plates is characterized by comprising steps that protrusions are formed on the outer surfaces of the inner plates in the overlap regions, the outer surface of each inner plate refers to the surface of the side, where the corresponding outer plate is located, of the inner plate, the gaps keep in the overlap regions between the clamped outer plates and the clamped inner plates by the aid of the protrusions in laser fusion weld procedures, and the heights of the gaps are the heights of the protrusions. The method has the advantages that the gaps of the laser fusion weld plates can be effectively controlled by the aid of the method, uniform gaps for exhausting hydrogen can be stably formed, and accordingly the weld quality can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a method for controlling the gap between laser welding panels of an aluminum alloy vehicle body. Background technique [0002] With the continuous development of high-power and high-performance laser processing equipment, laser welding of aluminum alloys has been used in the production of automobile body-in-white as a new welding technology. Compared with the traditional connection technology SPR of aluminum alloy, laser welding has fast speed, strong applicability and high reliability, and can effectively reduce the length of the lap joint, which not only directly reduces the use of plates, but also improves the connection strength of the car body , increasing the market competitiveness of the product. [0003] Aluminum alloy has a series of advantages such as high specific strength, corrosion resistance, good thermal stability, and easy forming, and is favored in the aut...

Claims

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Application Information

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IPC IPC(8): B23K26/26B23K26/244B23K26/70B23K103/10
CPCB23K26/26B23K26/244B23K26/702
Inventor 刘蕾刘宏婕申启乡汤东华成子文
Owner ANHUI JEE AUTOMATION EQUIP CO LTD
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