Additive and equal composite forming equipment and forming method

Abstract

The invention relates to additive and equal composite forming equipment. The additive and equal composite forming equipment comprises a workbench, a fixed mechanism connected with the workbench, a printing mechanism connected with the fixed mechanism, a plastic forming mechanism, a laser mechanism, a powder feed mechanism and a gas conveying mechanism. The printing mechanism comprises a printing head, a mounting seat connected with the printing head, a laser pipe connected with the mounting seat, a powder feed pipe connected with the printing head and a gas conveying pipe connected with the printing head. The mounting seat is arranged on the fixed mechanism. One end of the laser pipe is connected with the laser mechanism, one end of the powder feed pipe is connected with the powder feed mechanism, and one end of the gas conveying pipe is connected with the gas conveying mechanism. The plastic forming mechanism comprises a press block and a control part connected with the press block. According to the additive and equal composite forming equipment, the laser pipe is connected with the mounting seat, the printing head is arranged in the powder feed pipe and the gas conveying pipe, light inner coaxial powder coupling is achieved, and the material utilization rate is increased; the plastic forming mechanism is used for carrying out plastic processing on each forming layer, and thepart density is improved; and by means of the equipment, the work efficiency is obviously improved, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a simple-structured additive compound forming device and a forming method thereof. Background technique [0002] 3D printing technology is the main implementation form of "additive manufacturing". It does not need original embryos and molds, and can directly produce objects of any shape by adding materials based on computer graphics data. As the most cutting-edge and most potential technology in the entire 3D printing system, 3D printing technology of metal parts is an important development direction of advanced manufacturing technology. [0003] At present, metal 3D laser processing technology is a rapidly developing emerging science and technology. This technology combines selective laser sintering technology and laser cladding technology. Based on the forming idea of ​​"discrete + accumulation", it scans and accumulates materials layer by layer according to the layered se...

AI Technical Summary

Problems solved by technology

[0004] Traditional 3D laser processing technology generally adopts external optical synchronous powder feeding laser forming, but the material utilization rate is low and the work efficiency is not high

Moreover, insufficient mechanical properties due to internal defects such as pores and lack of fusion make the source of fatal fatigue initiation of load-bearing structural parts, resulting in low density of metal 3D printing parts, unsatisfactory surface accuracy, and hidden dangers in reliability

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