Laser-CMT welding aluminum alloy additive manufacturing method and forming system

A technology of additive manufacturing and aluminum alloy, which is applied in the field of laser-CMT welding aluminum alloy additive manufacturing method and forming system, can solve the problems of slag inclusion and non-fusion, so as to improve stability, improve stirring effect, and avoid slag inclusion The effect of the phenomenon

Pending Publication Date: 2017-10-24
NAT INST CORP OF ADDITIVE MFG XIAN +1
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Problems solved by technology

However, defects such as unfused or slag inclusions are prone to occur in the multi-layer welding process

Method used

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  • Laser-CMT welding aluminum alloy additive manufacturing method and forming system

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Embodiment Construction

[0028] The present invention is described in further detail below in conjunction with accompanying drawing:

[0029] In the laser-CMT welding aluminum alloy additive manufacturing method of the present invention, the heat source used is a composite heat source of laser and electric arc, and the "synergistic effect" of laser and electric arc is used to realize efficient and high-quality additive manufacturing of aluminum alloy.

[0030] In the aluminum alloy additive manufacturing process, the aluminum alloy is required to be deposited according to the specified trajectory, so the composite heat source needs to be fixed on a moving mechanism. In terms of the selection of the motion mechanism, you can choose a CNC machine tool or an industrial robot to achieve a fixed trajectory movement.

[0031] Such as figure 1 As shown, the laser-CMT welding aluminum alloy additive manufacturing forming system of the present invention includes an industrial computer and a forming platform 1...

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Abstract

The invention discloses a laser-CMT welding aluminum alloy additive manufacturing method and a forming system. A laser and an electric arc are adopted as a composite heat source, the cold metal short circuiting transfer manner is adopted, and additive manufacturing forming for an aluminum alloy component is achieved. According to the provided laser-CMT welding additive manufacturing method, the problems that in the process of aluminum alloy component manufacturing through laser additive, the required laser power is high, and forming is difficult are solved, the problems that in the traditional process of aluminum alloy manufacturing through electric arc additive, the heat input amount is large, deformation is serious, and a molten bath is prone to overflowing or webbing are solved, and the problem that in the process of aluminum alloy manufacturing through CMT welding additive, incomplete fusion or slag inclusion or the like is likely to happen is solved; and the additive manufacturing method based on the laser-electric arc composite heat source principle is provided for additive manufacturing forming for the aluminum alloy component.

Description

technical field [0001] The invention belongs to the technical field of metal additive manufacturing, and relates to an additive manufacturing method, in particular to a laser-CMT welding aluminum alloy additive manufacturing method and a forming system. Background technique [0002] Aluminum alloy has high specific strength, specific modulus, good fracture toughness, fatigue resistance and corrosion resistance, and is an important material widely used in various industrial sectors. The traditional subtractive machining method has a serious waste of materials, and it is difficult to realize the forming of complex shapes, especially in the case of forming large metal components, which is costly, serious waste, and long manufacturing cycle. Computer additive manufacturing technology is a processing technology based on three-dimensional CAD model data, which is manufactured layer by layer by adding materials. Compared with traditional material cutting, cutting, grinding and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/348B23K26/342B23K103/10
CPCB23K26/342B23K26/348B23K2103/10
Inventor 卢秉恒方学伟张丽娟王博文
Owner NAT INST CORP OF ADDITIVE MFG XIAN
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