Surface roughen processing method for laser rollers with irregular deflected focus light spot and device

A processing device and processing method technology, which is applied to laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of cold-rolled steel plates without obvious linear distribution and strain, and achieve simple structure, convenient maintenance, and low cost. Effect

Inactive Publication Date: 2010-10-20
苏州市博海激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. Although the laser textured pits on the surface of the roll are very shallow, for large-area textured cold-rolled steel sheets, it can still be clearly felt that there is a uniform distribution of cold-rolled steel sheets along the length direction (rolled along the circumferential direction of the roll). Straight line, but there is no obvious straight line distribution in the transverse direction of cold-rolled steel plate
[0010] 2. It is easy to form a strain in the length direction of the cold-rolled steel plate, forming a very thin linear scratch along the length direction of the cold-rolled steel plate

Method used

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  • Surface roughen processing method for laser rollers with irregular deflected focus light spot and device
  • Surface roughen processing method for laser rollers with irregular deflected focus light spot and device
  • Surface roughen processing method for laser rollers with irregular deflected focus light spot and device

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Embodiment

[0044] Example: such as figure 2 , image 3 and Figure 5 Shown is a specific embodiment of the laser roller type surface roughening processing device with irregular deflection of the focused light spot provided by the present invention, including a high-power pulsed laser 1 and a numerically controlled machine tool 3, the bed of said numerically controlled machine tool 3 is equipped with The working platform 12 driven by the translation guide rail 303 and the roll shaft 301 and the top 302 for installing the roll 13 parallel to the translation guide rail 303, the pseudo-random acousto-optic deflection system 4 and the focusing mechanism 6 are installed on the said work platform 12, said Pseudo-random acousto-optic deflection system 4 is composed of acousto-optic deflector 401, acousto-optic deflection driver 402, pseudo-random signal generator 403 and computer controller 404 that are electrically connected in sequence. Controlled by the electrical signal output by the acou...

Embodiment 2

[0054] Example 2: specific combination Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the focusing mechanism 6 is placed at the front of the acousto-optic deflector 401, and the focusing mechanism 6 still adopts a transmissive focusing lens, while the rest of this embodiment is the same as that of the embodiment 1. In this way, the pulsed laser beam 2 emitted by the high-power pulsed laser 1 passes through the optical element system 5 and then enters the focusing mechanism 6 to focus, and then deflects through the acousto-optic deflector 401 controlled by a pseudo-random signal to roughen the surface of the roll 13. processing. The equivalent focal length of the focusing mechanism 6 is longer than that of Embodiment 1, because the acousto-optic deflector 401 is placed between the focusing mechanism 6 and the surface of the roller 13 .

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Abstract

The invention discloses a surface roughen processing method for laser rollers with irregular deflected focus light spots. In the method, the pulse laser beam output from a high-power pulsed laser is incident to an acousto-optic deflection device in a paseudorandom audio-optical deflection system, generates a small angle of two-dimensional random irregular deflection through the acousto-optic deflection device controlled by a paseudorandom electrical signal, and in above process, a focusing mechanism arranged at the front part or the back part of the acousto-optic deflection device is utilized to focus the pulse laser beam incident or emitted from the acousto-optic deflection device to form a series of focus light spots which irregularly scan along the rotating roller surface so as to carry out roughen processing on the roller surface and form random irregular distribution of the roughen spots on the surface of the rollers. When the roller processed by the method of the invention rolls the steel plate, the irregular roughen spot distribution can be formed, various profiles can be provided, and the rolling quality of the steel plate can be improved.

Description

technical field [0001] The invention belongs to the field of laser roughening treatment on the surface of rollers, in particular to a method and device for roughening the surface of laser rollers with irregular deflection of focused light spots. Background technique [0002] Textured cold-rolled steel sheets with special surface morphology are widely used in manufacturing, especially in the automobile and home appliance industries. Textured cold-rolled steel sheets are rolled by rolls with textured surfaces. Therefore, the surface morphology of texturized rolls has a great influence on the process performance of deep drawing and coating of cold-rolled steel sheets. [0003] In order to ensure that the cold-rolled steel plate has excellent shape, deep drawability, elongation and coating performance, in the production process of cold-rolled thin steel plate, it is required to roughen the surface of the cold-rolled work roll to meet the user's requirements. Textured cold-rolle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/04B23K26/36B23K26/42B23K26/352
Inventor 陈培锋孙长东夏灵林谈贤杰梁乔春
Owner 苏州市博海激光科技有限公司
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