Additive manufacturing equipment and method for preparing performance gradient metal structure
A technology for preparing properties and metal structures, which is applied in the field of additive manufacturing equipment for preparing performance-gradient metal structures from composite materials composed of elements with different saturated vapor pressures. Issues such as application and development to achieve effective integration
Active Publication Date: 2021-08-10
SHANGHAI JIAOTONG UNIV +1
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Problems solved by technology
The existing gradient structure additive manufacturing method adjusts the performance by changing the composition of the powder / wire material; the process of changing materials is cumbersome and the process takes a long time, which limits the application and development of this preparation method
Method used
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Embodiment Construction
[0045] The present invention will be described in detail below in conjunction with examples. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several adjustments and improvements can be made without departing from the inventive concept. These all belong to the protection scope of the present invention.
[0046] see figure 1 , figure 1 It is a structural schematic diagram of a metal melting additive manufacturing equipment (powder bed powder spreading type) based on adjusting the environmental pressure to prepare a performance gradient metal structure provided by the present invention. The additive manufacturing equipment includes an energy emitting device 10-1, a scanning device 10-2, a forming platform 20, a chamber pressure regulating device 30, an equipment chamber 40, an experimental control system 50; an energy...
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The invention discloses an additive manufacturing equipment and method for preparing a performance gradient metal structure; the equipment includes an energy emitting device, a scanning device, a forming platform, a chamber pressure regulating device, an equipment chamber, and an experiment control system. The chamber pressure adjustment device includes compressed bottled gas, vacuum pump, air pressure detection part, booster valve, vacuum pump valve and air flow filter device; according to the real-time set air pressure value and the measurement data of the air pressure detection part, the experimental control system controls the The valve and the vacuum pump valve input the protective gas into the equipment chamber or discharge the gas in the equipment chamber to adjust the pressure state of the equipment chamber. When forming different parts of the same metal structure, adjust the pressure state of the equipment chamber in real time and control the evaporation effect of different elements in the raw materials, so as to achieve the purpose of controlling the composition and performance of the forming structure material; it can meet the special performance requirements of different parts and local lightweight Requirements, realize performance gradient metal structure preparation.
Description
technical field [0001] The invention belongs to the related technical field of metal melting additive manufacturing, and relates to an additive manufacturing equipment and method for preparing a performance gradient metal structure; in particular, it relates to a metal melting additive manufacturing equipment and method for preparing a performance gradient metal structure based on adjusting the environmental pressure , suitable for various alloys and composite materials, especially composite materials composed of elements with different saturated vapor pressures. Background technique [0002] A performance gradient metal structure is a structure in which one composition, organization or phase gradually transitions to another composition, organization or phase. This structure can meet the special performance requirements of different parts and regions of the metal structure, improve the performance utilization rate of the material, give full play to the performance of each pa...
Claims
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IPC IPC(8): B22F3/105B33Y10/00
CPCB22F2203/13B22F2207/17B33Y10/00Y02P10/25
Inventor 王浩伟陈映言王洪泽吴一孙华韩静韬
Owner SHANGHAI JIAOTONG UNIV