A kind of forming device and method of electric arc additive material and forging and milling composite processing

Abstract

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. The compound processing and forming device includes a manipulator arc additive manufacturing unit, a stroke-limited high-frequency forging modification unit, and a numerical control milling finishing unit. The manipulator arc additive manufacturing unit includes a manipulator, a connecting plate, a cylindrical clamp, an insulating block, a welding torch, a wire feed tube and a wire feed tube clamp. The wire feeding tube is fixed to the handle of the welding torch by two stepped clamps for the wire feeding tube, and the wire feeding tube is parallel to the handle of the welding torch to ensure smooth wire feeding. The welding torch is clamped by two insulating blocks, which not only ensures the isolation and insulation of the mechanical arm and the welding torch, but also enables the welding torch to rotate around the handle. The invention integrates the integrated manufacturing equipment of additive manufacturing, equal material modification, and material subtractive finishing. Based on the machining center, adding a forging device and cooperating with a manipulator, the rapid integration of each module is realized, and the manufacturing efficiency is improved. Automated high degree.

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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