Method for establishing material gene library based on laser micro metallurgy

Abstract

The invention discloses a method for establishing a material gene library based on laser micro metallurgy. The method for establishing the material gene library based on the laser micro metallurgy comprises the steps that 1, a laser micro metallurgical system is established; 2, a metal powder type is determined, and sufficient mass of various types of metal powders are prepared; 3, a discharging device is moved; 4, total mass of a mixed powder is fixed, and output of the various types of metal powders is controlled according to the mass ratio of the various types of metal powders; 5, the various types of metal powders are mixed and discharged; 6, the mixing powders are discharged in all grooves on a substrate; 7, laser processing parameters of a laser generation subsystem are set, and micro metallurgy is performed; 8, a corresponding relationship between composition of a laser addictive alloy sample and a microscopic structure, and the laser additive alloy sample is subjected to a micro-nano indentation test; 9, a BP neural network model is trained; and 10, a laser additive alloy sample material gene library is established. According to the method for establishing the material genelibrary based on the laser micro metallurgy, the mixed powders preset in the grooves on the substrate is subjected to a fix-point and micro metallurgy through a high-energy laser beam, and micro alloying of the metal materials is realized based on the strong convection of the laser molten pool.

Description

technical field

[0001] The invention belongs to the technical field of laser material addition, and in particular relates to a method for establishing a material gene library based on laser micro-area metallurgy. Background technique

[0002] Laser additive manufacturing has developed rapidly in a brand-new manufacturing method, realizing the concept transformation from the traditional "subtractive manufacturing, equal material manufacturing" to "additive manufacturing". Based on powder, it uses high-energy laser beams to form solid parts layer by layer through cladding. Laser additive manufacturing technology greatly reduces the time from product development to market launch, and greatly reduces product development costs, especially making product manufacturing faster, flexible, personalized, and diversified. It has incomparable advantages in small batch production. In the process of laser additive manufacturing components, due to the non-equilibrium structure and micro-r...

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