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Melt flow control method and device for extrusion deposition forming

A flow control device and flow control technology, applied in additive manufacturing, additive processing, etc., can solve the problems of high price and difficult control of parts manufacturing accuracy.

Pending Publication Date: 2021-05-14
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a melt flow control method and device for extrusion deposition molding, aiming to solve the technical problems in the prior art that using additive manufacturing to make parts equipment is expensive and the manufacturing accuracy of parts is difficult to control

Method used

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  • Melt flow control method and device for extrusion deposition forming
  • Melt flow control method and device for extrusion deposition forming
  • Melt flow control method and device for extrusion deposition forming

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a certain posture (as shown in the drawings), If the specific posture changes, the directional indication also changes accordingly.

[0037] In addition, in the present invention, descript...

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Abstract

The invention provides a melt flow control method and device for an extrusion deposition forming. The device comprises a container and a piston rod; the container used for containing molten melt, a through hole is formed in the bottom end of the container, a nozzle is mounted on the through hole, a base plate is arranged below the nozzle at a preset distance, and the base plate is connected with the motion platform; the piston rod is arranged in the container, the piston rod comprises a connecting rod and an extrusion head arranged at the bottom end of the connecting rod, and the extrusion head is used for opening or closing the through hole and is arranged in a step shape; the container is used for containing molten melt, the melt falls onto the base plate through the through hole in the bottom end of the container and the nozzle installed on the through hole, and metal solids are formed after cooling; and the substrate is connected with a three-dimensional motion platform to obtain a required part shape. The melt flow control device for extrusion deposition forming has the advantages that the structure is simple, the manufacturing cost is low, and the part manufacturing precision can be adjusted. The invention further provides a melt flow control method for extrusion deposition forming.

Description

technical field [0001] The invention relates to the field of melt flow control devices, in particular to a melt flow control method and device for extrusion deposition molding. Background technique [0002] Additive manufacturing is a "bottom-up" material additive forming technology, which is driven by a three-dimensional computer-aided design (Three-Dimensional Computer-Aided Design, 3D CAD) digital model, without any mold assistance, through material The technology of point-by-point and layer-by-layer accumulation to directly form a three-dimensional entity. So far, a variety of mature metal additive manufacturing technologies have been developed, the typical ones are: Selective Laser Sintering (Selective Laser Sintering, SLS), Laser Engineered Net Shaping (LENS), Electron Beam Melting ( Electron BeamMelting, EBM) and selective laser cladding (Selective laser Melting, SLM), etc. However, the above-mentioned manufacturing equipment is expensive, and the accuracy of the pa...

Claims

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Application Information

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IPC IPC(8): B22F12/50B22F12/53B22F12/30B22F12/90B22F10/22B22F10/30B22F3/115B33Y10/00B33Y30/00
CPCB22F3/115B33Y10/00B33Y30/00
Inventor 马明胡志刚张可维李彬陈艳蒋亚军张鸿海
Owner WUHAN POLYTECHNIC UNIVERSITY
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