Box for preparing and forming laser material with controllable ambient temperature under inert atmosphere

Abstract

The invention discloses a box for preparing and forming a laser material with a controllable ambient temperature under an inert atmosphere. The periphery of a heating box (18) has a double-layer structure; heating plates (13) are arranged on the front inner wall and the rear inner wall of the heating box (18); a laser head (23) is arranged in a central hole of a circular upper cover (1); two powder conveying pipes (24) are symmetrically arranged on both sides of the laser head (23); a working table (17) is arranged on the back of a rack (15); a workpiece (27) is placed on the working table (17); a gear (7) engaged with the rack (15) is arranged on a transmission shaft (8); the other end of the transmission shaft (8) passes through the heating box (18) and a cylindrical box body (5) so as to be connected with a motor speed reducer; and the other end of a bracket (22) is connected with a linear motion mechanism. Due to the design of the double-layer box body, the difficulty of high-temperature sealing is solved. As different organizations can be produced by performing laser quick forming at different temperatures, the organization performance of parts can be controlled by controlling the temperature. By the box, the laser quick forming of the metal material which is easy to oxidize and has large thermal stress and poor plasticity can be realized; moreover, the class of the metal prepared by laser and formed quickly is extended.

Description

technical field [0001] The invention relates to the technical field of laser material preparation and forming, in particular to a controllable environment temperature inert atmosphere laser material preparation and forming box. Background technique [0002] Laser preparation and forming of high-performance metal composite materials, gradient structural materials and metal parts is a new technology of point-by-layer continuous laser melting deposition and simultaneous addition of forming materials to prepare metal composite materials, gradient structural materials and formed metal parts. This technology first slices the metal composite material, gradient structure material and digital model of the metal part to be formed in a certain thickness along the height direction, and generates the scanning trajectory drive of each layer according to certain rules according to the two-dimensional geometric information of each layer. Code, driven by it, the CNC machining platform moves ...

AI Technical Summary

Problems solved by technology

But even if the above method is adopted, although it has a certain effect, it still cannot satisfy the laser preparation and laser rapid prototyping of metal materials with high alloy content, such as Ni-based superalloys, and ceramic particles reinforced with high content (mass percentage > 50%) Metal composite materials, such as TiC reinforced TA15, TC4 and other titanium alloy composite materials and preparation of some gradient materials

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