Laminated structure solid-phase additive manufacturing method

Abstract

The invention discloses a laminated structure solid-phase additive manufacturing method. The method comprises the following steps that a wire material is heated to a softening state, and a corresponding roller mould with an isosceles trapezoid, a square and a plane shape is adopted by means of external force, in the raw material forming process, filling and repairing are carried out alternately, so that a trapezoid shape, a square shape, an inverted trapezoid shape and a trapezoid shape are formed by the raw materials layer by layer in sequence, additive manufacturing is carried out sequentially and circularly, and the raw materials are columnar wire materials. The method is a solid-phase additive forming method which is free in phase change, stable in lap joint, in extrusion / forging type,compact in structure, precise in forming and low in cost. The technical scheme of the method can be widely applied to short processes, high quality, high efficiency and overall manufacturing of medium and large structural members, the practical bottleneck which is difficult to control in forming and poor in performance reliability in the existing melting additive directly forming high-performanceaerospace component technology at home and abroad is broken through, and a practical new way is developed for high-quality, high-efficiency and directly integral manufacturing of the large and medium-sized and high-performance complex parts.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a solid-phase additive manufacturing method for a laminated structure. Background technique [0002] The design and manufacturing concepts of additive manufacturing are increasingly developing towards the trend of light weight, long life and low cost. The traditional manufacturing of parts and components mainly relies on traditional casting, forging, and welding methods to complete. The existing additive manufacturing is mainly based on the surfacing welding of molten wire or powder materials, while solid-phase additive materials use thin strips. Mainly, single-channel "wall" body stacking is the main method, and it is impossible to realize the integrated additive manufacturing of blocks and more complex components. [0003] The existing melting additive manufacturing technology mainly relies on heat source to melt metal and manufacture directly. The structure of ...

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Problems solved by technology

[0006] Second, the cost of thin tape is much higher than that of wire, which is also the main constraint factor that limits its popularization and application.

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