A multi-arc gun additive manufacturing system and method

Abstract

The invention belongs to the field of electric arc additive manufacturing, and particularly discloses a multi-electric arc gun additive manufacturing system and method. The system comprises a quick-dismounting flange, a reciprocating motion unit, a rotating unit and an arc welding gun unit; the reciprocating motion unit is arranged at the lower end of the quick-dismounting flange, and comprises three ball screw sliding tables; the rotating unit comprises a plurality of rotating tables; the arc welding gun unit comprises two contour arc welding guns and a plurality of filling arc welding guns,the arc welding gun unit is mounted on the reciprocating motion unit through the rotating unit, and the arc welding gun unit is driven by the reciprocating motion unit to move in a reciprocating linear mode; and during forming, the contour of a component is printed through the contour arc welding guns, and then the contour is filled through the filling arc welding guns. According to the multi-electric arc gun additive manufacturing system, the problems that the size precision is low, the residual stress and deformation are large and the efficiency is low when a large-scale metal component is manufactured through electric additive manufacturing are solved, and the high-efficiency integrated electric arc additive manufacturing is realized.

Description

technical field [0001] The invention belongs to the field of arc additive manufacturing, and more specifically relates to a multi-arc gun additive manufacturing system and method. Background technique [0002] With the development of my country's aerospace and national defense industries, the demand for rapid manufacturing of large and complex structural parts is becoming increasingly urgent. Additive manufacturing technology has attracted widespread attention due to its characteristics of rapid prototyping of complex-shaped components, and has become a research hotspot. At present, there are three methods of additive manufacturing of metal components: laser additive manufacturing, electron beam additive manufacturing and arc additive manufacturing. Among them, the forming efficiency of laser additive manufacturing and electron beam additive manufacturing is low, and due to the The energy concentration of the beam leads to uneven temperature distribution and large residual s...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a multi-arc torch additive manufacturing system and method, which uses two contour arc welding torches to print out the outline of the component, and then several filling arc welding torches. The contour is filled, and according to the contour of the component to be formed, the relative distance between the contour arc welding torch and the filling arc welding torch is changed, which solves the problems of low dimensional accuracy, large residual stress and large deformation of the component during arc additive manufacturing

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