3D printing technology for ultrasonic shot-peening based on laser welding

An ultrasonic shot peening and 3D printing technology, applied in the field of 3D printing technology, can solve problems such as poor tissue mechanical properties, and achieve the effect of improving microstructure and improving mechanical properties

Active Publication Date: 2014-04-30
CHANGZHOU INST OF MECHATRONIC TECH
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the above-mentioned existing problems, a 3D printing technology based on laser welding and ultrasonic shot peening is provided to solve the problem that the microstructure of metal products printed by ordinary 3D printers is cast state, and the mechanical properties of the structure poor problem

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  • 3D printing technology for ultrasonic shot-peening based on laser welding

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Embodiment Construction

[0009] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0010] As shown in Figure 1, a 3D printing technology based on laser welding and ultrasonic shot peening, first constructs a 3D model of the part in the computer, and then slices the 3D model according to the thickness of the sheet to obtain the sections at various heights of the part Shape, cut the required section from the sheet by milling, place the sheet with suitable width on the liftable workbench and fix it, scan the section of the part with the laser beam along a certain track, and make the sheet The section area above is completely welded with the previously processed section. While the laser beam is scanning and moving, the tool head of the ultrasoni...

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Abstract

The invention relates to a 3D printing technology for ultrasonic shot-peening based on laser welding. According to the 3D printing technology, a 3D model is built in a computer, then slicing is carried out on the 3D model according to the thickness of panel veneer to obtain the shape of each height section of a workpiece, and the needed sections are cut out from the panel veneer in a milling mode; in the overlapping and molding process, the sections of parts are scanned through high-energy laser beams according to a certain motion trail, materials on one section and materials on the prior section are welded together, high-energy shot-peening is carried out on the welding portion immediately after the welding is completed, and the textures and performance of the materials can be improved. According to the 3D printing technology for ultrasonic shot-peening based on laser welding, sheet metal is used for carrying out overlapped welding, and ultrasonic shot-peening is carried out on the welding portion immediately after the welding is completed so that local plastic deformation can happen to the welding portion, and consequently microstructures of the materials can be improved, mechanical properties of finished products can be improved, and the manufactured parts can meet the using requirements of some important strength-bearing portions.

Description

technical field [0001] The invention relates to a 3D printing technology based on ultrasonic shot peening of laser welding. Background technique [0002] 3D printing technology is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. The world's first 3D printer was born in 1986. The most prominent advantage of 3D printing technology is that it can directly generate objects of any shape from computer graphics data without machining or molds, thereby greatly shortening the product development cycle, improving productivity and reducing production costs. For metal products, laser selection and sintering technology is often used for 3D printing, such as the M280 superposition process manufacturing machine of the German EOS (Electro Optical System) company; and the Swiss Arcam company's electron flow melting powder particle technology for 3D printing. Traditional powder laser sinter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C21D7/06C22F1/00
CPCB23P15/00
Inventor 王春艳陈国亮谢兰生刘杰刘阳
Owner CHANGZHOU INST OF MECHATRONIC TECH
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