Wall thickness additive manufacturing device for micro-casting and rolling additive manufacturing of large special-shaped pipes

Abstract

The invention provides a wall thickness additive manufacturing device for micro-casting and rolling additive manufacturing of large special-shaped pipes, which includes a vertical wall, a heat preservation cover, a cross slide assembly and a laser cladding assembly. Fixed connection, the laser cladding component and the cross slide component are fixedly connected; the shape of the vertical wall is a T-shaped structure, the heat preservation cover includes the heat preservation cover base, the heat preservation right cover and the heat preservation left cover, and the heat preservation right cover and the heat preservation left cover are connected with the heat preservation The upper part of the cover base is connected, and the cross slide assembly includes a horizontal slide structure, a vertical slide structure, a hexagonal head nut and a hexagonal head bolt; Sliding connection, fixed connection of longitudinal slide table guide rail and horizontal slide table, sliding connection of longitudinal slide table and longitudinal slide table guide rail. The invention utilizes laser welding to solve the problem of heat preservation of the workpiece in the process of wall thickness forming and additive manufacturing, and improves the qualified rate of the product.

Description

technical field [0001] The invention relates to the field of near-net forming and additive manufacturing of large-scale special-shaped pipes for nuclear power, in particular to a wall thickness additive manufacturing device for micro-casting and rolling additive manufacturing of large special-shaped pipes. Background technique [0002] Large special-shaped pipes for nuclear power are mainly used in nuclear power generators. They have special materials, irregular inner holes and complex shapes, and because they need to withstand high temperature and high pressure steam under working conditions, they have strict requirements on microstructure and internal defects. At present, they mainly rely on forging process to produce. The forging process has a long production process and complex process, and requires supporting large-scale forging equipment and flaw detection devices, so the production cost of large-scale joints remains high. Large-scale steel pipes with irregular shapes...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention provides a wall thickness additive manufacturing device for micro-casting and rolling additive manufacturing of large-scale special-shaped pipes. For the first time, it proposes the use of laser cladding, which solves the problem of wall thickness forming and additive manufacturing of workpieces. The problem of how to keep warm in the process reduces the processing cost and improves the pass rate of the product

Images