Additive manufacturing method for electric arc filler wire and device

An additive manufacturing and wire filling technology, applied in the field of additive manufacturing, can solve the problems of substandard quality of parts and easy generation of a large number of pores, and achieve the effects of improving the structure and properties, removing pore defects, and refining grains

Inactive Publication Date: 2017-05-31
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method and device for arc-filled wire additive manufacturing, which is used to solve the technical problem that a large number of pores are easily generated in the prior art during the additive manufacturing process, resulting in substandard quality of the produced parts

Method used

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  • Additive manufacturing method for electric arc filler wire and device
  • Additive manufacturing method for electric arc filler wire and device
  • Additive manufacturing method for electric arc filler wire and device

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with accompanying drawing.

[0035] Please refer to figure 1 , figure 1 For the working principle figure of the additive manufacturing method provided by the present invention, at first, utilize drawing software (such as three-dimensional CAD software) to draw the three-dimensional model (such as three-dimensional CAD software) of required component on computer figure 1 shown in (a)), and the model built by the slicing software (ie figure 1 (as shown in (b)) in the layer slice processing, to obtain the two-dimensional profile of each layer section (as shown in (c)); secondly, after processing the slice data of these two-dimensional profiles, use programming technology to generate The trajectory code of the welding torch; finally, the method of arc-filling additive manufacturing is adopted, as shown in (d), A is the tungsten electrode, which is set on the welding torch, C is the welding wire, and B is...

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Abstract

The invention provides an additive manufacturing method for an electric arc filler wire and a device. The device comprises a control module, a manufacturing module and a power module which are connected mutually. The control module is used for controlling the manufacturing module to be operated to manufacture a product, and controlling the power module to supply the power. The power module is used for, under the control of the control module, outputting compound superaudio frequency pulse current to the manufacturing module so as to provide a heat source to the manufacturing module. The added compound superaudio frequency pulse has the remarkable modulating action to GTAW electric arc, the electric arc shrinkage is remarkable, the electric arc force is greatly improved, the fusion penetration rate of the settled layer is improved, the side surface roughness of the settled layer is reduced, and the forced vibration of the liquid metal in a weld pool can be caused by the electric arc ultrasound effect, so the liquid metal flow is a double-circle flow mode, the air hole defect is reduced, the gain structure is refined, and the component performance is improved.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to an arc-filled wire additive manufacturing method and device. Background technique [0002] Additive manufacturing technology is a new manufacturing technology that emerged in the 1980s and developed rapidly. Different from traditional casting and forging, which needs to be molded into blanks and then cut and processed, additive manufacturing is a direct rapid prototyping technology without molds. Based on the principle of "discrete-stacking", according to the CAD model of the part, the material is accumulated layer by layer. directly produce solid parts. Additive manufacturing technology leads the development of the "design / manufacturing / material" trinity model, conforms to the development trend of the new technological revolution, and drives the manufacturing industry from the traditional large-scale and mass production mode to the mode of individualization, cust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K9/167
CPCB23K9/042B23K9/167
Inventor 从保强齐铂金王强张伟刘方军
Owner BEIHANG UNIV
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