Method for preparing cucrzr/316l connectors based on laser additive manufacturing technology

A manufacturing technology and laser additive technology, applied in the field of metal materials, can solve the problems of cumbersome steps, dangerous explosion welding operation, inability to apply to large-scale industrial production, etc., and achieve the effect of improving the interface strength
CN113351883BActive Publication Date: 2021-11-02TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2021-11-02

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Abstract

The present invention provides a method for preparing CuCrZr / 316L connectors based on laser additive manufacturing technology, step S1, using laser additive manufacturing technology to prepare an alloy in 316L alloy and CuCrZr alloy; step S2, for the step S1 The surface of the prepared alloy is remelted by laser; step S3, using laser additive manufacturing technology to prepare another alloy in 316L alloy and CuCrZr alloy on the surface of the alloy treated in step S2, so as to form a CuCrZr / 316L connector. The interface of the CuCrZr / 316L connector prepared by the present invention forms a new multi-element alloy mixed area, and a large number of nano-grains are formed inside the area, and the formed nano-grain interface has higher mechanical properties than the base material (CuCrZr and 316L) and strength to ensure the high quality of the CuCrZr / 316L interface.
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Description

technical field

[0001] The invention belongs to the technical field of metal materials, in particular to a method for preparing CuCrZr / 316L connectors based on laser additive manufacturing technology. Background technique

[0002] In recent years, laser additive manufacturing, a technology that facilitates custom production and freedom of design by fabricating complex parts directly from digital files, is now rapidly changing the manufacturing ecosystem. Laser additive manufacturing uses a high-energy laser beam to repeatedly scan each layer of powder particles, directly fuses the particles into a three-dimensional component, and solidifies them by partial or complete melting. Another important property of laser additive manufacturing is the ultrafast cooling rate (103-108 K / s). Unlike other rapid cooling techniques such as quenching, AM can produce three-dimensionally shaped metals (bulk parts) at extremely high cooling rates. Therefore, the technology has attracted consi...

Claims

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