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Laser texturing method for achieving uniform and random distribution of texturing points

A random distribution and laser texturing technology, which is applied in laser welding equipment, welding/welding/cutting items, manufacturing tools, etc., can solve the problems of low texturing efficiency, improve the quality of surface morphology, achieve uniform random distribution, Effect of Avoiding Moiré Defects

Inactive Publication Date: 2017-12-26
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose a laser texturing method that realizes uniform and random distribution of texturing points in view of the problem of directional surface topography and low texturing efficiency existing in the current laser texturing technology, which can effectively It solves the problem of the orderliness of laser texturing, and can use the multi-hair texturing head to solve the problem of low texturing efficiency

Method used

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  • Laser texturing method for achieving uniform and random distribution of texturing points
  • Laser texturing method for achieving uniform and random distribution of texturing points
  • Laser texturing method for achieving uniform and random distribution of texturing points

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Embodiment 1

[0052] The structure of the laser texturing system adopted in this embodiment is as follows: figure 2 As shown, it includes a CNC lathe 1 for driving the roll to rotate, a laser texturing head 2, a pulsed laser source 3, and a control cabinet 5.

[0053] The laser pulse source 3 and the laser texturing head 2 are installed on the pallet 103 of the CNC lathe. Through the control of external signals, the laser can be quickly switched between the on and off states, thereby emitting high-frequency pulsed laser , and launch into the laser texturing head 2.

[0054] There is a focusing lens 202 inside the laser texturing head 2, which can focus the laser beam and make the focus fall on the surface of the roll, so that the surface of the roll forms a texturing point under the action of high-energy laser.

[0055] As the upper computer, the control cabinet 5 not only controls the rotation speed of the CNC lathe and the translation speed of the pallet, but also controls the laser pow...

Embodiment 2

[0065] This embodiment is similar to Embodiment 1, the main difference is that 4 laser texturing heads are used at the same time to improve the texturing efficiency, and the 4 laser texturing heads are arranged along the circumferential direction of the roll and move synchronously. Except for the random signal source, other parameters are the same. Parameter settings such as the rotational speed of the roll, the moving speed of the texturing head, and the range of the random signal are the same as those in Embodiment 1.

[0066] The schematic diagram of the texturing point distribution on the roll surface during the texturing process is shown in Figure 6 .

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Abstract

The invention provides a laser texturing method for achieving uniform and random distribution of texturing points. The method comprises the following steps of: A, keeping a relative motion relationship between a laser texturing head and a base material; B, performing random delay and random deviation on laser pulses by using random signals, wherein a surface texturing point is generated for each of the laser pulses in a certain range along a scanning track; C, controlling the relative motion relationship between the laser texturing head and the base material to achieve surface texturing of the base material, wherein the texturing points are sparely distributed; and D, employing a plurality of texturing heads or multi-pass texturing simultaneously, and then overlaying the sparse texturing points formed by different texturing heads or different passes to achieve a needed surface morphology of a final target. The method provided by the invention solves the problem of order of laser texturing effectively and can solve the problem that the texturing efficiency is relatively low by employing the different texturing points.

Description

technical field [0001] The invention relates to a laser texturing technology in the field of surface treatment, and more particularly to a laser texturing method for realizing uniform and random distribution of texturing points. Background technique [0002] Generally, the surface of the steel plate needs to have a specific surface roughness, so that the micro-pit on the surface can store lubricating oil to reduce friction during stamping, and can enhance the adhesion of the coating during coating while having a better coating effect. The roughness on the surface of the steel plate is mainly copied from the roll surface during rolling, so the surface of the roll needs to have a specific surface roughness. [0003] Laser texturing technology is to focus a high-energy, high-repetition-frequency pulsed laser beam on the surface of the roll, so that the material on the surface of the roll is rapidly heated and melted or vaporized, forming texturized pits or texturized pits with ...

Claims

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Application Information

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IPC IPC(8): B23K26/352B23K26/0622B23K101/16B23K103/04
CPCB23K26/352B23K26/0622B23K2101/16B23K2103/04
Inventor 陈孝明李山青全基哲
Owner BAOSHAN IRON & STEEL CO LTD