CMT-ultrasonic peening composite additive manufacturing method
An ultrasonic impact, additive manufacturing technology, applied in manufacturing tools, auxiliary devices, arc welding equipment, etc., can solve problems such as reducing the performance of metal additive manufacturing components, stress concentration, and reducing the effective bearing area of forming components
Inactive Publication Date: 2018-05-25
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses a CMT-ultrasonic peening composite additive manufacturing method. The surface of a formed component is subject to ultrasonic peening treatment while CMT electric arc additive manufacturing is carried out, the surface of the component has plastic deformation, internal air holes are extruded while the texture of the formed component is compact, and the air hole size is decreased or eliminated; and meanwhile, part of action energy of ultrasonic peening is transmitted to a CMT liquid state molten bath through the component, solubility of bubbles into molten bath liquid is reduced, the floating speed of the bubbles is increased, time of the bubbles in the molten bath is shortened, and the number and size of air holes in the formed component are reduced; and meanwhile, through ultrasonic peening, the surface of a welding joint has obvious plastic deformation, the close-surface layer microstructure is broken, and grains on the surface of the joint are refined.
Welding/cutting auxillary devicesArc welding apparatus +2
- Experimental program(1)
Description & Claims & Application Information
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