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Method for judging the energy distribution of laser beams suitable for equal intensity laser shocks

A technology of energy distribution and laser shock, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as uneven distribution of surface integrity enhancement effects, and achieve the effect of improving distribution uniformity

Active Publication Date: 2019-01-01
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

In addition, when the strengthening area of ​​the part to be processed is a complex curved surface structure, if the same laser beam is used for impact treatment at different positions, it will inevitably cause uneven distribution of surface integrity strengthening effects such as residual stress in the entire area to be strengthened

Method used

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  • Method for judging the energy distribution of laser beams suitable for equal intensity laser shocks
  • Method for judging the energy distribution of laser beams suitable for equal intensity laser shocks
  • Method for judging the energy distribution of laser beams suitable for equal intensity laser shocks

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Embodiment Construction

[0016] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0017] Such as figure 1 As shown, a method for judging beam energy distribution suitable for equal-intensity laser shocks includes the following steps:

[0018] S101: Measure the shape parameters of the strengthened area of ​​the part to be processed, and establish the surface equation F(x, y, z)=0 of the strengthened area;

[0019] S102: Determine the incident angle of the laser be...

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Abstract

The invention relates to the field of material surface strengthening treatment and more particularly to a beam energy distribution determination method suitable for equal intensity laser shock. The method comprises the following steps of: measuring shape parameters of a strengthened area of a part to be processed, and establishing a surface equation of the strengthened area under a selected coordinate system; determining the incident angle of the laser beam and the included angle between the laser beam and the x, y, z axes under the incident condition; according to the material properties of the parts to be machined, the optimal laser shock hardening process being established, and the laser beam energy required under the condition of vertical incidence being determined; adopting energy compensation method to adjust the oblique incident position of the strengthened surface; according to the mathematical judgement rule of laser energy correction, the laser energy of all positions of thesurface to be intensified is adjusted to obtain the laser beam suitable for equal intensity laser shock energy distribution law. The method can accurately determine the beam energy distribution required by equal intensity laser shock, and the laser beam with modified distribution law can be used to strengthen the curved surface parts with equal intensity.

Description

technical field [0001] The invention relates to the field of surface strengthening treatment of materials, and more specifically, to a method for judging beam energy distribution suitable for equal-intensity laser shocks. Background technique [0002] Laser shock is a new technology that uses strong laser-induced shock waves to strengthen metals, which can greatly enhance the durability of metal materials. Because the laser has good accessibility and can be precisely positioned, the laser shock peening technology can treat some parts that cannot be treated by the traditional surface peening process. [0003] When laser shock strengthening technology is used to process gear tooth surfaces, turbine disk tenon grooves, and blisk blade parts, the special shape and structure require that the laser beam be incident obliquely on the strengthened area at different angles. In addition, when the strengthening area of ​​the part to be processed has a complex curved surface structure, ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 卢国鑫周泽铭张永康
Owner GUANGDONG UNIV OF TECH
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