A high-throughput molding device and molding method for additive materials

Abstract

The invention discloses a high-throughput forming device and a forming method for additive materials. A powder bed laser melting cavity, a powder feeder system, a transition cabin and a powder mixing device are arranged; a transition cabin is set on the wall of the powder bed laser melting cavity The through hole, the transition chamber is fixed in the through hole of the transition chamber, the upper sealing valve and the lower sealing valve are set in the transition chamber to form a transition chamber structure in the transition chamber, and the transition chamber wall of the transition chamber is provided with an inflatable pipe and an exhaust pipe , using the transition cavity structure in the transition chamber to replace the environment of the powder to be added, avoiding the replacement of the environment in the molding cavity by re-adding powder, realizing the function of screening multiple material components in one molding, and doubling the material preparation efficiency. The environment replacement in the molding cavity is reduced. By controlling the supply of powder, this device can realize the precise supply of powder at different positions, and at the same time, it can quickly replace different added powders. The mixing device can effectively melt the metal particles and make the ingredients evenly mixed.

Description

technical field [0001] The invention relates to the technical field of high-throughput samples of additive materials, in particular to a high-throughput molding device and molding method for additive materials. Background technique [0002] The development level of materials has always been a symbol of the progress of the times and social civilization. Facing the application environment of rapid industrial technology update and increasingly harsh equipment service environment in the new era, the development of new key materials has become more and more diversified, complex, and Due to the development characteristics of multi-level microstructure, the traditional "trial and error" material development mode not only consumes a lot of time and money, but also is difficult to meet the requirements of material development in the new era due to the limitation of test efficiency. Therefore, there is an urgent need for a Efficient means of material development. However, even in Eur...

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Problems solved by technology

At present, the powder bed laser melting technology adopts the preset powder method, which has the advantage of stable and controllable excessive element quantity compared with other methods. Therefore, the powder bed laser melting technology has great advantages in the preparation of high-throughput materials, but due to the powder bed Laser melting technology adopts the method of presetting powder, which leads to only a certain amount of powder can be prefabricated at a time to prepare a sample layer. When multiple sample layers are required, it is necessary to open the powder bed laser melting cavity to refill the powder and replace the powder bed. The printing environment in the laser melting cavity reduces the printing speed, and multiple powder bed laser melting cavity environment replacements are required, resulting in energy waste, and if the amount of powder added at one time is not enough or superimposed manufacturing is required, it is necessary to refill the powder and reset the molding environment atmosphere

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