Arc additive manufacturing and forging-milling composite machining forming device and method

Abstract

The invention belongs to the field of metal additive manufacturing, and relates to an arc additive manufacturing and forging-milling composite machining forming device and a method. The composite machining forming device comprises a manipulator arc additive manufacturing unit, a stroke-limiting high-frequency forging modification unit and a numerical control milling finish machining unit, the manipulator arc additive manufacturing unit comprises a manipulator, a connecting plate, a cylindrical clamp, insulating blocks, a welding gun, a wire feeding pipe and wire feeding pipe clamps, the wire feeding pipe is fixed to a welding gun handle through the two ladder type wire feeding pipe clamps, and the wire feeding pipe is parallel to the welding gun handle so that the fact that wire feeding iscarried out smoothly can be ensured. The welding gun is clamped through the two insulating blocks, so that not only the isolating insulation between the manipulator and the welding gun, but also thewelding gun rotates around the handle. The arc additive manufacturing and forging-milling composite machining forming device and the method is a integrated manufacturing equipment and integrates additive manufacturing, equal material modification and material reducing finish machining, a machining center is taken as a base, a forging device is added and cooperates with the manipulator, so that therapid integration of each module is realized, the manufacturing efficiency is improved and the automation degree is high.

Description

technical field [0001] The invention belongs to the field of metal additive manufacturing, and relates to an electric arc additive and forging-milling compound processing forming device and method. Background technique [0002] In recent years, the additive manufacturing technology industry has developed rapidly. Its rapid prototyping technology without molds has continuously shortened the preparation cycle of large and complex structural parts. However, additive technologies using lasers, electron beams, etc. as heat sources are expensive and inefficient. The arc additive manufacturing technology based on the principle of surfacing welding uses arc as the heat source, and the method of feeding metal wire can quickly and cost-effectively manufacture complex parts. [0003] However, the essence of arc-added material is micro-casting. After the material is added, the structure of the parts is not dense enough, the metal grains are uneven in thickness, and some even have defect...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the additive manufacturing technology industry has developed rapidly. Its rapid prototyping technology without molds has shortened the preparation cycle of large and complex structural parts. However, additive technologies using lasers and electron beams as heat sources are expensive and inefficient. The arc additive manufacturing technology based on the principle of surfacing welding uses the arc as the heat source, and the method of feeding metal wire can quickly and cost-effectively manufacture complex parts

[0003] However, the essence of arc additive material is micro-casting. The structure of parts after additive forming is not dense enough, and the thickness of metal grains is uneven. , the biggest limitation when using the arc as the heat source to manufacture parts is that the machining accuracy cannot meet the needs of use. After the parts are formed, they must be machined before they can be put into practical use.

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