Melt flow control method and device for melt coating additive manufacturing

A flow control device and additive manufacturing technology, applied in the field of materials, can solve problems such as large time lag of melt, achieve fast and effective stabilization and control, fast and effective flow, and avoid forming defects.

Inactive Publication Date: 2016-10-12
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the compressibility of gas and the hysteresis of air pressure control, there is a large time lag in controlling the melt with this method

Method used

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  • Melt flow control method and device for melt coating additive manufacturing
  • Melt flow control method and device for melt coating additive manufacturing

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Experimental program
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Embodiment Construction

[0026] The present invention is described in further detail below in conjunction with accompanying drawing:

[0027] Such as figure 1 , figure 2 As shown: the present invention discloses a melt flow control device for fusion coating and additive manufacturing, including a crucible melting unit, a dynamic distance control unit, an air pressure control unit and a control system; the dynamic distance control unit communicates with the crucible through its control rod 12 The smelting unit is connected; the air pressure control unit is sealed and connected with the crucible smelting unit through the pipeline; the control system performs data feedback and control with the crucible smelting unit, the dynamic distance control unit and the air pressure control unit.

[0028] The crucible smelting unit comprises a crucible 9, a first temperature sensor and a filter 17 are arranged inside the crucible 9; a heater 10 and a thermal insulation cover 11 are arranged outside the crucible 9;...

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Abstract

The invention discloses a melt flow control device for melt coating additive manufacturing. The melt flow control device comprises a crucible smelting unit, a dynamic gap control unit, a pneumatic control unit and a control system, wherein the dynamic gap control unit is connected with the crucible smelting unit through a control rod; the pneumatic control unit is hermitically connected with the crucible smelting unit through a pipeline; and the control system realizes data feedback and control for the crucible smelting unit, the dynamic gap control unit and the pneumatic control unit. The melt flow control device can control the magnitude of the flow in the whole melt coating forming process of a metal member, to fulfill the aim of additive manufacturing of an efficient, high-quality and low-cost metal material part.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a melt flow control method and device, in particular to a melt flow control method and device for melt coating additive manufacturing. Background technique [0002] Additive manufacturing technology (also known as "3D printing") is rapidly changing traditional production and lifestyles. Its core idea is to discretize three-dimensional parts in two dimensions to form layered data. According to the layering of the three-dimensional CAD model of the part Data, the discrete forming materials are gradually combined to form layered cross-sections, and then piled up layer by layer to form solid parts. The parts can be directly manufactured without molds, which can greatly reduce costs and shorten the development cycle. Fusion coating of metal components is a category of additive manufacturing. It does not require expensive lasers, has low operating costs and high reliability. It is a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/115B33Y30/00B33Y10/00B33Y50/02
CPCB22F3/003B22F3/115B33Y10/00B33Y30/00B33Y50/02
Inventor 杜军魏正英方学伟卢秉恒王鑫
Owner XI AN JIAOTONG UNIV
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