Method for manufacturing metal part solidification structure by non-contact control added material and magnetron metal 3D printing device

A technology for metal parts and additive manufacturing, which is used in the field of metal parts solidification structure control technology and equipment to achieve flexible installation, avoid shrinkage cavities, and expand the range of printable materials.

Active Publication Date: 2016-07-27
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This non-contact intervention in the metal solidification process provides a new idea for solving the metal solidification control in the above-mentioned metal 3D printing, but it has not been applied in the field of metal 3D printing technology.

Method used

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  • Method for manufacturing metal part solidification structure by non-contact control added material and magnetron metal 3D printing device
  • Method for manufacturing metal part solidification structure by non-contact control added material and magnetron metal 3D printing device

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Embodiment Construction

[0038] Preferred embodiments of the present invention are described in detail as follows:

[0039] In this example, see figure 1 and figure 2 , a magnetically controlled metal 3D printing device, composed of a raw material supply unit, a melting and sintering system unit, a main controller and a power supply, the power supply provides electric energy for each system, the main controller controls each working unit of the 3D printing device, and the raw material supply device The unit is a comprehensive raw material supply device that is used in conjunction with the vertical gravity feed material device and the horizontal spreading feed material device. The vertical gravity feed material device is composed of a powder feeder feed tank 9 and a powder feed pipe 7. The raw material powder chamber 8 of the powder feeder is formed inside the feeding tank 9, and the expansion section of the powder feeding pipe 7 is installed under the feeding tank 9 of the powder feeding device to f...

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Abstract

The invention discloses a method for manufacturing metal part solidification structure by a non-contact control added material and a magnetron metal 3D printing device. An electromagnetic field is applied in the quick solidification process of metal 3D printing; under the effect of the electromagnetic field, thermocurrent can be generated on a quickly solidified solid / liquid interface; the thermocurrent and the magnetic field are interacted to generate thermal electromagnetic force for triggering flowing of a melt; the end part of a dendritic crystal is shorn after suffering from the effect of the force to cause fragment of the dendritic crystal to form a lot of new crystal nucleus; and on the other hand, the temperature gradient of the front edge of the solid / liquid interface is slowed down through flowing of the melt, so that the constitutional supercooling of two phase regions is increased, the nucleation rate is increased. The method refines grains, improves the morphology of the grains, enables the structure to become uniform and compact, and realizes the structure control of metal 3D printing parts.

Description

technical field [0001] The present invention relates to a process and equipment for regulating the solidification structure of metal parts, in particular to a method and device for manufacturing metal parts by additive manufacturing or a method and device for manufacturing metal parts by metal melting 3D printing, which are applied to the control of metal solidification structure and electromagnetic metallurgy technology field. Background technique [0002] Metal additive manufacturing, or 3D printing, is a new technology that uses laser beams, electron beams, electric arcs and other heat sources to scan and melt metal powder layer by layer and rapidly solidify it to form a three-dimensional object based on the three-dimensional mathematical model of the component. Features make it possible to manufacture components of almost any shape. Especially in the manufacture of complex components of aerospace equipment, 3D printing has shown outstanding advantages and has broad appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B22F2999/00B22F10/00B22F10/25B22F12/63B22F10/28B22F12/41B22F12/50B22F10/20B22F2202/05Y02P10/25
Inventor 任忠鸣王江肖武泉刘小器赵睿鑫吴欢欢
Owner SHANGHAI UNIV
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