5xxx-series aluminum alloy electric-arc additive surface treatment device

Abstract

The invention discloses a 5xxx-series aluminum alloy electric-arc additive surface treatment device. The 5xxx-series aluminum alloy electric-arc additive surface treatment device is characterized by comprising a base plate, a six-axis robot, a welding gun, a connecting bracket and a spray gun, wherein the welding gun and the spray gun are mounted on the six-axis robot through the connecting bracket; and the six-axis robot rotates to drive the connecting bracket to rotate, so that the welding gun and the spray gun are controlled to perform additive and sand-spraying operation on the base plate,and surface hardening on the surface of an aluminum alloy deposited layer is performed while black ash and oxides on the surface of the deposited layer are removed, and therefore, mechanical propertyof the aluminum alloy additive-manufactured part is improved, a welding machine additive program can be quickly transplanted to a sand spraying program, program design time is greatly shortened, andan application prospect is very strong.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, in particular to a 5xxx series aluminum alloy arc additive surface treatment device. Background technique [0002] The principle of additive manufacturing is to perform slice processing according to the CAD data model obtained on the 3D software, convert the 3D model into a 2D section, scan the 2D section layer by layer through a heat source, and use the layer-by-layer accumulation method to form the desired shape. For solid parts, "layered manufacturing" is the main manufacturing idea of ​​additive manufacturing. Compared with traditional subtractive manufacturing technology, additive manufacturing technology belongs to a "bottom-up" manufacturing method, which involves CAD technology, layered manufacturing technology, numerical control technology, reverse engineering technology, materials science, welding, etc. . In the prior art, CN109530851A discloses an arc additive manufacturing meth...

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Problems solved by technology

[0003] For 5xxx aluminum alloys, during the process of metal arc addition, since the magnesium element in the 5xxx series aluminum alloys is gasified at high temperature during the arc addition process, it is very easy to condense into black smoke on the surface and edge of the weld bead. During the process of alloy arc multilayer deposition, the black smoke will affect the deposition structure and mechanical properties of the next layer, and then affect the forming quality of 5xxx series aluminum alloy additive manufacturing parts. In the field of arc additive materials, especially for 5xxx series The aluminum alloy arc additive process needs to remove surface oxides and black dust for each layer. This process greatly reduces the deposition efficiency of additive manufacturing. Therefore, there is an urgent need for a device that can automatically remove surface dust and oxides to replace manual thereby improving production efficiency

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