Test device for gas flow field structure of kerf during laser cutting

A testing device and laser cutting technology, applied in the field of laser processing, can solve the problems of drastic changes in the structure of the gas flow field and difficult detection.

Inactive Publication Date: 2015-10-14
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to a large number of phenomena such as luminescence, heat generation and chemical reactions during the laser cutting process, the structure of the gas flow field in the slit changes drastically and is not easy to detect directly

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
  • Test device for gas flow field structure of kerf during laser cutting
  • Test device for gas flow field structure of kerf during laser cutting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0023] Such as figure 1 and figure 2 , a test device for the gas flow field structure of the slit in the laser cutting process, comprising: a gas injection module with a nozzle 1, two pieces of plexiglass 2 relatively parallel to each other, a thin metal plate with an oblique angle 3, a CCD camera 4, Supporting plate 5; the inner walls of the two pieces of plexiglass 2 facing each other are coated with viscous fluid.

[0024] Wherein, the metal thin plate 3 with an oblique angle is fixed between the opposite surfaces of two pieces of organic glass 2; the two pieces of organic glass 2 and the gas injection module are fixed on the support plate 5; The top of the glass is set corresponding to the oblique angle of the thin metal plate 3 . Described CCD camera 4 is positioned at the outside of any plexiglass, and is arranged in parallel with plexiglas...

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

No PUM Login to view more

Abstract

The invention discloses a device for testing a gas flow field structure of a kerf in a laser cutting process. The device comprises a gas injection module with a nozzle, two pieces of organic glass which are opposite, a metal thin plate with an inclined angle, a charge coupled device (CCD) camera and a supporting plate, wherein viscous fluids are respectively coated on the inner walls of opposite surfaces of the two pieces of organic glass; the metal thin plate with the inclined angle is fixed between the opposite surfaces of the two pieces of organic glass; the two pieces of organic glass and the gas injection module are fixed on the supporting plate; the nozzle is arranged above the two pieces of organic glass; and the CCD camera is positioned outside any organic glass and parallel to the organic glass. Compared with the prior art, the device has the advantages that by observing a supersonic speed gas flow field in the kerf, the gas flow field structure can be obtained, key influencing factors of the gas flow field can be discovered through experiments on relevant process parameters, and experiment basis is provided for mechanism research of a laser cutting process.

Description

technical field [0001] The invention relates to a test device, specifically, a device for observing the gas flow field structure in a slit during laser cutting, which belongs to the field of laser processing in mechanical engineering. Background technique [0002] Laser cutting technology is widely used in automobiles, sheet metal, aerospace and other fields, and is an important sheet metal processing technology. During the laser cutting process, the laser cutting head is perpendicular to the plate and emits laser light, and the gas nozzle coaxial with the laser cutting head ejects auxiliary gas, and the two act on the plate at the same time. The plate is heated and melted under the action of the laser, and the melted molten metal is blown out of the slit under the action of the auxiliary gas. With the movement of the laser head, the desired shape is finally processed on the plate. [0003] The gas flow field structure in the slit has a great influence on the formation eff...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
Inventor 胡俊邱宪琛陈乐
Owner SHANGHAI JIAO TONG UNIV
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap