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Metal material rapid forming method and device based on free falling body

A technology of metal materials and free fall, which is applied in the direction of safety devices, metal processing equipment, process efficiency improvement, etc., can solve the problems that metal materials cannot be processed and formed, so as to suppress natural convection and buoyancy, reduce work intensity, and effectively Conducive to the effect of safe production

Active Publication Date: 2022-01-11
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for rapid prototyping of metal materials based on free fall, which can realize rapid prototyping of metal materials under the condition of supernormal solidification, so as to solve the problem that the above-mentioned existing space environment ground simulation technology cannot realize the processing of metal materials forming problem

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  • Metal material rapid forming method and device based on free falling body
  • Metal material rapid forming method and device based on free falling body
  • Metal material rapid forming method and device based on free falling body

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Embodiment 1

[0076] This embodiment provides a method and device for rapid prototyping of metal materials based on free fall, which can realize rapid prototyping of metal materials under the condition of supernormal solidification.

[0077] Such as Figure 1~6 As shown, this embodiment provides a rapid prototyping device 100 for metal materials based on free fall, specifically a rapid prototyping device for supernormally solidified metal, which includes:

[0078] The first vacuum chamber 1 , the intermediate vacuum chamber 5 and the second vacuum chamber 3 are sequentially arranged in communication from top to bottom. Among them, the first vacuum chamber 1 is preferably a cylindrical vacuum chamber with a diameter of 500-2000 mm, which is mainly used for the suspension melting of the metal material (metal ball) to be processed, and realizes the non-container state of the metal melt; the intermediate vacuum chamber 5 is preferably a diameter of The 500-2000mm cylindrical vacuum chamber is ...

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Abstract

The invention discloses a metal material rapid forming method and device based on a free falling body. The container-free state and microgravity effect treatment (namely the free falling body process) of a metal material are coupled in the rapid forming process of the metal material to be machined, so that heterogeneous crystal nucleuses in a metal melt can be eliminated; and the alloy melt enters a deep supercooling state, segregation is remarkably eliminated, the structure is refined, the natural convection and buoyancy effects are restrained, the defects such as shrinkage cavities and air holes can be reduced, and uniform preparation of metal materials is achieved. And meanwhile, a temperature field, a magnetic field and an ultrasonic field can be added in the rapid forming process of the metal material, supernormal solidification of the metal material under complex conditions is achieved in cooperation with deep supercooling and the microgravity effect, the structure is effectively regulated and controlled, segregation is restrained, and the service performance of the material is improved. Moreover, the metal material rapid forming device based on the free falling body has the characteristics of being miniaturized, modularized, high in integration, intelligent and the like, and practicability is high.

Description

technical field [0001] The invention relates to the field of metal material forming, in particular to a free-fall-based metal material rapid prototyping method and device. Background technique [0002] With the development of my country's aviation, aerospace, and navigation-related technologies, higher requirements are put forward for materials as carriers of related technologies. Due to the defects and deficiencies such as shrinkage cavity, crack, porosity, oxidation, and segregation that are prone to appear in the casting during the forming process of the traditional casting forming technology, which seriously affects the service performance of the casting, it has gradually been difficult to meet the relevant technical requirements. In addition, alloys with active chemical properties and extremely high melting points, such as titanium alloys, niobium alloys, tungsten alloys, and rhenium alloys, have high demand for modern aviation, aerospace, and navigation-related technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D27/15B22D27/08B22D27/00B22D46/00
CPCB22D27/15B22D27/08B22D27/00B22D46/00Y02P10/25
Inventor 阮莹肖瑞麟胡亮解文军魏炳波
Owner NORTHWESTERN POLYTECHNICAL UNIV
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