Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Synchronous powder spreading type metal laser 3D printing powder feeding device

A technology of 3D printing and powder feeding device, which is applied in the field of laser 3D printing, can solve problems such as the disturbance of molten pool liquid level and the influence of cladding layer structure, so as to improve the utilization rate of powder, improve the consistency and directionality of the structure, Eliminates the effects of shocks and disturbances

Active Publication Date: 2017-05-24
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, under the impact of carrier gas and shielding gas, the liquid level of the molten pool will be significantly disturbed, which will affect the microstructure of the cladding layer.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synchronous powder spreading type metal laser 3D printing powder feeding device
  • Synchronous powder spreading type metal laser 3D printing powder feeding device
  • Synchronous powder spreading type metal laser 3D printing powder feeding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0022] The structure of a powder feeding device for synchronous powder-spreading metal laser 3D printing in this embodiment is as follows: figure 1 As shown, it includes a powder storage bin 1, a powder feeding bin 2, a powder feeding belt 3, a powder spreading head 4, a main transmission gear 5, a slave transmission gear 6, a driving motor 7, a beam 18, a cladding head 19 and a casing 11.

[0023] In this embodiment, the metal powder 9 is Inconel 625 superalloy powder, which is spherical and has a particle size of 40-100 μm. A sample with a size of 50mm×50mm×50mm is prepared by laser 3D printing. The scanning path adopts an "S" shape, the laser spot diameter is 3mm, the overlap rate is 50%, the scanning speed is 300mm / min, and the laser power is 1000W.

[0024] Such as figure 1 As shown, the metal powder 9 is loaded into the powder storage bin 1 from the powder inl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

A synchronous powder spreading type metal laser 3D printing powder feeding device comprises a powder storage bin (1), a powder feeding bin (2), a powder feeding belt (3), a powder spreading head (4), a driving transmission gear (5), a driven transmission gear (6), a driving motor (7), a cross beam (18), a cladding head (19) and a shell (11). The powder feeding bin is fixed to the cladding head through a rolling bearing and rotates freely. A transmission gear is installed on the upper portion of the powder feeding bin and meshes with the other transmission gear to form a transmission gear pair, and preset movement is achieved under driving of the motor. The powder storage bin stays still but keeps sliding relative to the powder feeding bin. Powder enters the powder feeding belt from a bottom outlet of the powder feeding bin, is fed to the powder spreading head under driving of a driving wheel and is evenly spread on a base plate under the action of gravity to form a powder layer. The powder spreading head and the shell are together fixed to the cladding head. The powder feeding bin and the cladding head move coordinately through procedure setting, the effect that the powder layer is always directly in front of a laser spot is ensured, and circulating water is adopted for cooling in the powder spreading head.

Description

technical field [0001] The invention relates to a powder feeding device and method for synchronous powder-spreading metal laser 3D printing, belonging to the technical field of laser 3D printing. Background technique [0002] At present, there are two main methods of powder supply in the process of metal laser cladding or laser 3D printing, namely powder spreading and synchronous powder feeding. The powder-spreading powder supply system spreads a thin layer of metal powder on the entire area of ​​the cavity by mechanical means, and the laser performs "selective melting" in the designated area, and most of the powder is not used; while the synchronous powder feeding type powder The supply system sends the metal powder to the laser spot through gas or gravity, and melts while feeding the powder. Most of the powder is blown away by the gas or bounced away from the matrix, and the utilization rate of the powder is very low. More importantly, under the impact of the carrier gas ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B22F3/105B33Y30/00
CPCB22F3/003B33Y30/00B22F10/00B22F10/36B22F12/52B22F10/25B22F10/366B22F12/30Y02P10/25
Inventor 王德王文琴谢玉江陈新贵迟长泰张友亮
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com