Unlock instant, AI-driven research and patent intelligence for your innovation.

Application of annular light spot laser in cleaning concave-convex groove structure

A ring-shaped spot and laser technology, applied in the field of lasers, can solve problems such as unclean cleaning, uneven substrate, and substrate damage

Active Publication Date: 2022-03-29
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing laser cleaning technology is generally carried out on the substance attached to the flat surface. For the substance attached to the surface of the concave-convex groove structure, due to the unevenness of the substrate, it is easy to cause the cleaning to be unclean or the substrate is damaged even though it is cleaned.

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
  • Application of annular light spot laser in cleaning concave-convex groove structure
  • Application of annular light spot laser in cleaning concave-convex groove structure
  • Application of annular light spot laser in cleaning concave-convex groove structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The optical power of the pulsed laser is 240W. The optical power of the continuous laser is 960W. The pulse frequency of the pulsed laser is 20 kHz. The pulse width of the pulsed laser is 80 nanoseconds. The scan rate of the laser beam is 5000 mm / s. The spot overlap rate of the laser beam is 40%. Before the laser beam is collimated and focused: the diameter of the spot of the laser beam is 300 microns; the diameter of the first spot formed by the pulsed laser is 100 microns; the inner diameter of the second spot formed by the continuous laser is 130 microns, and the outer diameter is 300 microns ; After the laser beam is collimated and focused: the pulsed laser beam and the continuous laser beam are combined to form a combined beam spot, and the diameter of the combined beam spot is 132 microns. The laser beam is collimated by the collimating mirror and focused by the focusing mirror; the focal length of the collimating mirror is 75mm; the focal length of the focusi...

Embodiment 2

[0053] The optical power of the pulsed laser is 300W. The optical power of the continuous laser is 1280W. The pulse frequency of the pulsed laser is 30 kHz. The pulse width of the pulsed laser is 200 nanoseconds. The scan rate of the laser beam is 8000 mm / s. The spot overlap rate of the laser beam is 60%. Before the laser beam is collimated and focused: the diameter of the spot of the laser beam is 400 microns; the diameter of the first spot formed by the pulsed laser is 150 microns; the inner diameter of the second spot formed by the continuous laser is 200 microns, and the outer diameter is 400 microns ; After the laser beam is collimated and focused: the pulsed laser beam and the continuous laser beam are combined to form a combined beam spot, and the diameter of the combined beam spot is 125 microns. The laser beam is collimated by the collimating mirror and focused by the focusing mirror; the focal length of the collimating mirror is 50mm; the focal length of the focu...

Embodiment 3

[0057] The optical power of the pulsed laser is 243W. The optical power of the continuous laser is 1008W. The pulse frequency of the pulsed laser is 22.5 kHz. The pulse width of the pulsed laser is 100 nanoseconds. The scan rate of the laser beam is 5850 mm / s. The spot overlap rate of the laser beam is 45%. Before the laser beam is collimated and focused: the diameter of the spot of the laser beam is 300 microns; the diameter of the first spot formed by the pulsed laser is 100 microns; the inner diameter of the second spot formed by the continuous laser is 130 microns, and the outer diameter is 300 microns ; After the laser beam is collimated and focused: the pulsed laser beam and the continuous laser beam are combined to form a combined beam spot, and the diameter of the combined beam spot is 106 microns. The laser beam is collimated by the collimating mirror and focused by the focusing mirror; the focal length of the collimating mirror is 90mm; the focal length of the fo...

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
poweraaaaaaaaaa
frequencyaaaaaaaaaa
poweraaaaaaaaaa
Login to View More

Abstract

The embodiment of the invention provides application of an annular light spot laser in cleaning a concave-convex groove structure, and the annular light spot laser comprises a pulse laser used for transmitting pulse laser; the continuous laser is used for emitting continuous laser; the beam combiner is used for combining the pulse laser and the continuous laser to form a laser beam; the light spots of the laser beam comprise a first light spot which is formed by pulse laser; the second light spot is a light spot formed by continuous laser; wherein the first light spot is a circular light spot, and the outer edge of the second light spot surrounds the outer edge of the first light spot; and moving the laser beam on the to-be-cleaned surface of the concave-convex groove structure along the scanning path so as to clean the to-be-cleaned surface. Pollutants attached to the concave-convex groove structure with the groove depth at the submillimeter level are cleaned through the annular light spot laser.

Description

technical field [0001] The present application relates to the technical field of lasers, in particular to the application of an annular spot laser in cleaning concave-convex structures. Background technique [0002] Mechanical components are usually processed to form a concave-convex groove structure with a groove depth of submillimeters, which is used to improve the performance of mechanical components and enhance the application capabilities of mechanical components. For example, the concave-convex groove structure is applied to the gun barrel. The barrel is a pipe used to launch projectiles. The inner wall of the barrel is processed to form a concave-convex groove structure, that is, rifling. The role of the rifling is to give the bullet the ability to rotate, so that the bullet can maintain the originally set direction to fly smoothly after being discharged from the chamber, increase the penetrating power, and improve the shooting accuracy. The gun barrel will leave a ...

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 Applications(China)
IPC IPC(8): B08B7/00B08B13/00
CPCB08B7/0042B08B13/00B23K26/0613B23K26/362
Inventor 谢春波汪军张春芳刘亚辉闫大鹏
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD