Method for preparing titanium-based nano composite material based on selective laser melting 3D printing

Abstract

The invention discloses a method for preparing a titanium-based nano composite material based on selective laser melting 3D printing, relates to a method for preparing the titanium-based nano composite material, and aims at solving the problem of poor cutting processing performance of titanium and the titanium-based composite material. The method comprises the steps that preparation is conducted,wherein composite powder is prepared through ball milling, and the content of B4C powder in the composite powder is (0.5-1) wt%; selective laser melting 3D printing is utilized for shaping. The methodhas the advantages that the mass of the prepared composite material is light, the thermodynamic stability is high, the strength is high, the wearing resistance is high, fixture tools or molds are notneeded in the shaping process, 'near net shape forming' is easily achieved, the composite material can be massively prepared in a short time, and sources of raw materials are wide; substrate crystalline grains of the prepared composite material are significantly fined, in-site generated complete nano scale TiB whiskers are diffusely distributed on boarders of substrate crystalline grains, an obvious enhancing effect on the composite material is achieved, the mechanical performance is significantly improved, and the method is suitable for preparing the titanium-based nano composite material through 3D printing.

Description

technical field [0001] The invention relates to a method for preparing a titanium-based nanocomposite material. Background technique [0002] In recent years, with the continuous improvement of the performance requirements of titanium-based products for new aerospace equipment, more attention has been paid to the use of complex integral structural parts and sophisticated complex structural parts in the design, and its manufacturing technology is moving towards lightweight, fast, low-cost and green structures. Develop in the direction of advanced manufacturing, and develop in the direction of digitalization, informationization and intelligence. As an additive manufacturing technology that has emerged rapidly in recent years, 3D printing technology has its outstanding advantages: the development cycle of parts is short, no molds and complicated post-processing processes are required, and it can be directly made into near-terminal or even terminal parts with high forming accura...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that existing casting methods, reaction hot pressing methods, combustion synthesis methods, and mechanical alloying methods cannot satisfy titanium-based composite materials with complex overall structures and complex structures due to the poor machinability of titanium and titanium-based composite materials. To solve the manufacturing problem, a method for preparing titanium-based nanocomposites based on selective laser melting 3D printing is proposed

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