Powder-solid coupling forming method for internal complex multi-flow passage piece

Abstract

The invention provides a powder-solid coupling forming method for an alloy complex internal multi-flow passage piece, and belongs to the field of aerospace manufacturing. The method comprises the steps of design and preparation of a pipeline, design and preparation of a multi-way connector, design and processing of a solid supporting block, design and processing of a sheath, material selection ofpowder, an integral quality detection process, selection of process parameters and the like. The method is characterized in that powder in a jacket and a solid block of the same kind (dissimilar kind)metal are diffused and connected into a whole in a closed container by means of hot isostatic pressing in a high-temperature high-pressure environment. Before forming, a traditional inner flow channel is replaced by the pipeline which is designed in advance, and then the corresponding multi-way connector is designed according to the pipeline for connection, so that the problem of connection amongmulti-way pipelines is solved, the later-stage cleaning and leakage detection are facilitated, and the use risk caused by residual powder is greatly reduced. The powder-solid coupling forming methodcan change the structure and the material according to the needs, and better solves the related problems of the current inner flow passage piece.

Description

technical field [0001] The invention belongs to the field of aerospace manufacturing, and in particular relates to a forming method of an internal complex multi-channel piece. Background technique [0002] With the rapid development of my country's aerospace industry, higher requirements are put forward for the weight reduction and rational layout of commonly used inner runners on aircraft. For this reason, how to integrate and place many complex pipelines in a narrow space to the greatest extent has become a key technical issue. In the field of aerospace, alloys such as titanium alloys, aluminum alloys, and magnesium alloys are widely used. For alloy parts with internal flow channels, the internal pipe size is small, and the pipe is curved and complex in shape, which requires high forming accuracy, strength and air tightness; if the residue after processing is not completely removed, it will It has a huge impact on the performance of the entire part, which has caused many...

AI Technical Summary

Problems solved by technology

However, this method has brought many challenges to the pipeline connection problem of internal complex multi-flow channel parts

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