Robot additive manufacturing method based on MIG/MAG welding process

A welding process and additive manufacturing technology, applied in the field of robotic additive manufacturing based on MIG/MAG welding process, can solve problems such as difficulty in welding high-precision, high-quality metal products, complex problems, etc.

Active Publication Date: 2019-03-05
NANJING UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

The welding-based additive manufacturing technology is different from the current mature additive manufacturing technology. The factors involved are more complicated, and is

Method used

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  • Robot additive manufacturing method based on MIG/MAG welding process
  • Robot additive manufacturing method based on MIG/MAG welding process
  • Robot additive manufacturing method based on MIG/MAG welding process

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Embodiment Construction

[0085] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0086] The additive manufacturing method of metal parts is not mature enough, and the existing slicing algorithm and path planning algorithm are not suitable for the variable welding process. In order to improve the welding quality of metal parts, it is necessary to design a special 3D printing program for a specific welding process.

[0087] to combine figure 1 , the present invention is based on the robot additive manufacturing method of MIG / MAG welding process, comprises:

[0088] Step 1: Establish a CAD model of the metal part to be manufactured, or obtain a CAD model of the metal part to be manufactured through a laser scanner;

[0089] Step 2: Study the influence of the welding process parameters on the geometric features of the weld through the welding process test, and establish the mapping relationship between the welding process parameters and the...

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Abstract

The invention discloses a robot additive manufacturing method based on a MIG/MAG welding process. The robot additive manufacturing method based on the MIG/MAG welding process comprises the following steps that (1) a CAD model of a metal part is established; (2) a welding process test is carried out to establish a mapping relation between welding process parameters and weld seam geometric characteristics; (3) modeling is carried out on a weld seam body and weld seam characteristic parameters; (4) the stacking direction is determined according to the shape of the metal part, the layering heightof overlaying welding is determined according to the established weld seam model, and secondary development is carried out on a three-dimensional model software to realize a slicing function to the model; (5) a section profile obtained in the slicing step is extracted, the row spacing of overlaying welding is determined according to the established weld seam model, an appropriate path planning algorithm is designed, and a numerical control program is generated; and (6) after the numerical control program is imported into a robot simulation software for testing, a robot drive program is exported to produce the metal part. The robot additive manufacturing method based on the MIG/MAG welding process has the advantages of high forming precision and quality, process integration and the like, and has low manufacturing costs and high market response speed.

Description

technical field [0001] The invention belongs to the technical field of metal forming and manufacturing, and in particular relates to a robot additive manufacturing method based on a MIG / MAG welding process. Background technique [0002] Additive manufacturing technology is a high-tech manufacturing technology developed in the late 1980s. It is mainly used for the forming and manufacturing of non-metallic materials. RF) to achieve the purpose of direct forming of functional metal parts. At present, RF technology has attracted great attention at home and abroad, and governments of various countries have also continuously increased their efforts and support for this technology research, and it has been widely used in many industries such as transportation, medical treatment, military affairs, and education. [0003] According to the different characteristics of this technology, researchers have named it differently, such as "rapid prototyping technology", "3D printing", "addit...

Claims

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Application Information

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IPC IPC(8): B23K9/02B23K9/173G06F17/50
CPCB23K9/02B23K9/173G06F30/20
Inventor 孔建寿乔飞孙新程谭迪陈炜刘钊
Owner NANJING UNIV OF SCI & TECH
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