A continuous feeding and feeding friction stir additive manufacturing device and additive manufacturing method

Abstract

The invention provides a continuous feeding and feeding friction stir additive manufacturing device and an additive manufacturing method. The device includes a top-to-bottom hydraulic ejector mechanism, a disc feeding mechanism, an upper clutch module, a lower clutch module, a constant speed The feeding mechanism, the additive mixing head and the additive manufacturing components are evenly arranged with multiple pieces of additive raw material in the disc feeding mechanism. The phase between the new additive raw material and the previous additive raw material is synchronously introduced into the additive mixing head, the hydraulic ejector mechanism pushes the new additive raw material into the upper clutch module, the fixed-speed feeding mechanism drives the additive raw material to move downward, and the stirring head drives Additive feedstock rotation and frictional thermal plasticization deposition between additively manufactured components enable continuous-feed additive manufacturing. The invention breaks through the current situation that the traditional friction stir additive is difficult to continuously feed and feed, requires layer-by-layer clamping, is prone to defects, and requires secondary processing after additive, and solves the problem of difficulty in restarting after interruption.

Description

technical field [0001] The invention belongs to the technical field of solid-phase additive manufacturing, and in particular relates to a continuous feeding and feeding friction stirring additive manufacturing device and an additive manufacturing method. Background technique [0002] Additive manufacturing technology, commonly known as 3D printing technology, is a digital manufacturing technology that achieves moldless and precise forming of components by adding and accumulating materials layer by layer. It manufactures three-dimensional complex shape components into simple two-dimensional planar shapes. It avoids a large amount of material and energy waste in traditional machining and precise forming manufacturing, and provides a new design idea for the realization of high-performance or super-performance key components. At the same time, this technology can greatly shorten the production cycle, reduce production costs and processing and manufacturing costs, making it possi...

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Problems solved by technology

[0006] In view of this, the present invention aims to propose a continuous feeding and feeding friction stir additive manufacturing device and additive manufacturing method, breaking through the traditional friction stir additive technology, which is difficult to continuously feed and feed materials, and the additive process requires layer-by-layer clamping, increasing Defects are easy to occur between material layers, and the technical status of secondary processing and material reduction after material addition solves the difficult problem of interruption and restart of the existing continuous feeding strategy

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