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Surface treatment method

A technology for surface treatment and surface treatment, applied in the direction of manufacturing tools, welding/welding/cutting items, coatings, etc., to solve problems such as scratches and damage to product appearance

Pending Publication Date: 2022-04-01
TOCALO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generated burrs will cause damage to the appearance of the product, or scratches on objects in contact with it, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0130] Example 11: The change of Pc is small, the change of Ra is small, and the RSm increases.

Embodiment 12

[0131] Example 12: The change of Ra is small, the RSm increases, and the Pc decreases.

Embodiment 13

[0132] Example 13: The change of Rsm is small, the change of Ra is small, and the Pc is decreased.

[0133] Examples 14-16: Ra changes little, RSm increases, and Pc decreases.

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PUM

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Abstract

The surface treatment method of the present invention is a surface treatment method for processing a surface of a substrate having irregularities by irradiating the surface with a laser beam, the laser beam satisfies all of the following three conditions: the power density in a range of a radius of 25 [mu] m from the center of the laser beam spot is 1.0 * 10 < 3 >-1.0 * 10 < 5 > kW / cm < 2 >, the power density of the entire laser beam spot is 0.08-0.12 times the power density in a range of a radius of 25 [mu] m from the center of the laser beam spot, and the action time in a range of a radius of 25 [mu] m from the center of the laser beam spot is 1.7 * 10 <-6 >-1.0 * 10 <-5 > seconds. According to the method, fine and sharp protrusions on the surface of the base material can be removed, and certain roughness is kept.

Description

technical field [0001] The present invention relates to a surface treatment method using a laser beam. Background technique [0002] In recent years, with the development of laser oscillators, various processing can be performed by laser beams, and laser processing can also be used for the purpose of controlling the surface morphology of substrates such as roughening or flattening the substrate surface. For example, Patent Document 1 describes a method of roughening the surface of a ceramic base material by irradiating a ceramic base material with a laser beam. [0003] Laser processing is a useful technology, but there are some problems. For example, when a laser beam is used for grooving, burrs may be generated because residues are deposited around the opening of the groove. The resulting burrs will damage the appearance of the product or scratch objects that come into contact with it. As a method of removing such burrs, as described in Patent Documents 2 and 3, after l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/356
CPCB23K26/3576B23K26/0006B23K2103/02B23K2103/08B23K2103/52B23K26/082B23K26/354B23K26/352B23K26/08B23K26/0622B23K26/3568C23C4/18
Inventor 横田博纪川井大辅
Owner TOCALO CO LTD