Interlayer ultrasonic peening assisted high-performance CMT electric arc additive manufacturing method and device
A technology of ultrasonic impact and additive manufacturing, applied in the direction of electrode support devices, cleaning methods and appliances, manufacturing tools, etc., can solve the problems of deformation, collapse and growth of formed parts, reduce anisotropy and improve density , Improve the effect of strength and toughness
Pending Publication Date: 2022-06-07
JIANGSU UNIV
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The invention belongs to the technical field of composite additive manufacturing of metal structural parts, and particularly relates to an interlayer ultrasonic peening assisted high-performance CMT electric arc additive manufacturing method and device. Through alternate work of the cold metal transition electric arc additive manufacturing control device and the harmonic wave ultrasonic impact control device, regulation and control of stress and tissue in the forming process of the electric arc additive component are achieved, and the strengthening effect is more thorough. Harmonic ultrasonic impact treatment is carried out on an interlayer bonding interface in the CMT electric arc additive manufacturing process, interface residual tensile stress is effectively eliminated, uniform plastic deformation is generated, and therefore the size of primary thick and large columnar beta crystals is regulated and controlled, and anisotropy of mechanical performance of a component is improved; the effects of reducing the grain size, eliminating metallurgical defects and integrally improving strength and plasticity are achieved.
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