Electric arc fused deposition laser shock forging additive manufacturing method and device

Abstract

The invention discloses an electric arc fused deposition laser shock forging additive manufacturing method. The electric arc fused deposition laser shock forging additive manufacturing method comprises the following steps that (1) an electric arc welding device is controlled to move and conduct metal fusing position, so that a weld layer is formed; (2) the temperature of an electric arc fused deposition metal area of the weld layer is collected through a temperature sensor, the collected data are sent to the controller, and the controller controls a laser generator to conduct synchronous shock forging on the electric arc fused deposition metal area at the easy plasticity deformation temperature; (3) the step (2) and the step (3) are repeatedly executed, the weld layers are stacked layer by layer, and then a workpiece is formed. The invention further provides an electric arc fused deposition laser shock forging additive manufacturing device. By the adoption of the electric arc fused deposition laser shock forging additive manufacturing method and device, in the manufacturing process of the part, metal grains are refined, the microstructure is optimized, the possible internal defects of pores, fusion failure, shrinkage porosity and the like of an ordinary electric arc additive manufacturing formed metal part are avoided, and meanwhile the comprehensive mechanical performance of the metal part is also improved.

Description

technical field [0001] The invention relates to an additive manufacturing method and device, in particular to an arc deposition laser shock forging additive manufacturing method and device. Background technique [0002] Different from traditional "removal" manufacturing, "additive manufacturing" does not require original embryos and molds. Based on computer graphics data, objects of any shape can be generated by adding materials. Compared with traditional manufacturing methods, it can form high-performance, complex and difficult-to-machine parts with high efficiency and low cost, so it has broad application prospects in high-end manufacturing fields such as aerospace, automobiles, molds, and biomedicine. According to the difference of energy beam, metal additive manufacturing can be divided into three categories: laser, electron beam and electric arc. Arc additive manufacturing technology is suitable for low-cost, high-efficiency rapid prototyping of large-sized and complex...

AI Technical Summary

Problems solved by technology

The metal material has a good shape at the recrystallization temperature. The essence of this method is that a cladding layer is completely solidified, and the ultrasonic impact strengthening begins after cooling to below the recrystallization temperature. The elimination of the same cladding layer has almost no effect, and the temperature at different positions of the same cladding layer is completely different. It is difficult to achieve the homogenization treatment of improving mechanical properties and eliminating residual stress when ultrasonic impact treatment is used.

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