A device and method for electromagnetic impact composite arc additive manufacturing

Abstract

The invention belongs to the technical field related to additive manufacturing, and discloses a device and method for electromagnetic impact composite arc additive manufacturing. The device includes a deposition energy source, a flexible clamp, and an electromagnetic impact generating mechanism. The electromagnetic impact generating mechanism Connected to the deposition energy source through the flexible clamp, the electromagnetic shock generating mechanism moves synchronously with the deposition energy source; After the wire material is fused and deposited, the electromagnetic impact generating mechanism generates a pulsed electromagnetic field, and the electromagnetic field performs electromagnetic impact on the high-temperature fused micro-area behind the deposition area. The invention can suppress metallurgical defects such as pores, unfused, and microcracks, break the recrystallization process, refine grains, relieve or even eliminate the tensile stress of formed parts, inhibit the deformation of formed parts, and avoid cracking, thereby improving the forming quality and quality of metal components. mechanical properties.

Description

technical field [0001] The invention belongs to the technical field related to additive manufacturing, and more specifically relates to a device and method for electromagnetic impact composite arc additive manufacturing. Background technique [0002] Metal additive manufacturing technology generally uses high-energy beams (laser, electromagnetic beam or electric arc) for local metal wire / powder melting and deposition, and metal parts undergo periodic rapid cooling and rapid heating, melting, solidification and solid-state phase transition, and the material space and time The uneven expansion and contraction of the components lead to complex thermal stress and deformation of the components, and high-quality defects such as inclusions, pores and unfused during the accumulation process, as well as tissue defects caused by local special thermal phenomena are all factors that damage the performance of the parts. In order to eliminate these defects And to improve the performance o...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a device and method for electromagnetic impact composite arc additive manufacturing, which belongs to a device and method for improving the microstructure and mechanical properties of metal additive manufacturing formed parts, Solve the problems of complex and concentrated distribution of residual stress, large deformation of formed parts and coarse structure in free forming of traditional metal arc additive manufacturing, and it is difficult to avoid defects such as pores and slag inclusions

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