Additive manufacturing device with water-cooling additive manufacturing modules capable of being spliced in stepless sliding manner and additive manufacturing method

Abstract

The invention provides an additive manufacturing device with water-cooling additive manufacturing modules capable of being spliced in a stepless sliding manner and an additive manufacturing method. The additive manufacturing device comprises the sliding block type water-cooling additive manufacturing modules, an additive manufacturing platform and a base plate. The surface of the additive manufacturing platform is provided with more than two sliding grooves, the two ends of each sliding groove are provided with a water inlet connector and a water outlet connector correspondingly, each sliding groove is provided with a mounting groove, the sliding block type water-cooling additive manufacturing modules are connected with or disconnected from the sliding grooves from the mounting grooves, and the sliding block type water-cooling additive manufacturing modules are connected with the sliding grooves in a sliding manner. The base plate is detachably connected with the tops of the sliding block type water-cooling additive manufacturing modules. Heat dissipation fins are arranged at the bottoms of the sliding block type water-cooling additive manufacturing modules, and after the sliding block type water-cooling additive manufacturing modules are connected with the sliding grooves, the heat dissipation fins are arranged in the sliding grooves. The additive manufacturing device has the advantages that the sliding block type water-cooling additive manufacturing modules can be assembled according to needs, the base plate can be freely combined, and waste caused by the low utilization rate of the complete base plate is solved.

Description

technical field [0001] The invention belongs to the field of a special platform for additive manufacturing, and in particular relates to an additive device and an additive method with a water-cooled additive module capable of stepless sliding splicing. Background technique [0002] Metal additive manufacturing technology is a branch of 3D printing technology, which uses powdery or filamentous metal as raw material, high-energy beams such as lasers, electron beams, plasma beams, etc. Melting and stacking layer by layer to manufacture metal components. In the process of additive manufacturing, the heat dissipation conditions of components are poor, and the heat accumulation is complicated and serious, which leads to complex stress and deformation of components, and it is difficult to control the forming. [0003] The existing problems in the existing technology include: 1. Generally, metal additives are added by using a whole metal substrate, but the actual additive area on t...

AI Technical Summary

Problems solved by technology

In the process of additive manufacturing, the heat dissipation conditions of the components are poor, and the heat accumulation is complicated and serious, which leads to complex stress and deformation of the components, and it is difficult to control the forming

[0003] The existing problems in the existing technology include: 1. Generally, metal additives are added by using a whole metal substrate, but the actual additive area on the additive substrate is limited, especially for the additive of large components and high-cost metal materials. 2. Due to the heat accumulation of the additive, the internal stress of the additive substrate increases and the deformation is serious, resulting in a large difference in height from the nozzle of the additive gun to the deposition layer, and pores and cavities are prone to appear , Defects such as poor forming or device collision, etc., seriously affect the quality of additive materials; 3. The traditional additive support surface is the substrate plane. When adding complex components, there may be protruding structures on the upper part of the component, and the substrate plane cannot provide support for it. , the traditional solution is to install support plates, but this fixing method is difficult to guarantee the reliability of subsequent material additions; 4. When adding materials to large components, it may be necessary to adopt the method of adding materials in partitions first, and then continuing to add materials after assembly method, while the traditional whole substrate is fixed at a designated position and cannot be moved, making it difficult to achieve the purpose of partitioning and adding materials

[0004] For example, patent CN207223265U discloses a welding water-cooled workbench, which arranges cooling water channels in the connecting platform, and its essence is only to carry out overall water cooling on the platform and cannot realize the on-demand design of the additive substrate and real-time control of cooling water flow; patent CN211866596U discloses A cooling mechanism for the metal additive workbench is developed, which sprays on the back of the workbench to achieve the purpose of cooling, and its essence is to cool the workbench as a whole. The heat accumulation of the material leads to serious deformation of the substrate and other problems

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