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Method for the treatment of metal, ceramic or stone surfaces and surface that can be obtained by using this method

A ceramic and stone technology, applied in metal processing equipment, laser welding equipment, welding/welding/cutting items, etc., can solve the problem of lack of repeatability of the process, achieve high uniformity tribological properties, high durability, waste products less effect

Inactive Publication Date: 2017-08-01
WARTSILA IBERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the obtained improvement in the coefficient of friction values ​​was similar to the above process, the lack of reproducibility of the described process due to surface contamination with embedded alumina particles and recirculation of the alumina particles is also not recommended to use this process

Method used

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  • Method for the treatment of metal, ceramic or stone surfaces and surface that can be obtained by using this method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Using Nd laser: YVO 4 (532nm) average power of 7W, operating at 20kHz, M 2 Values ​​< 1.2, scan rate 50mm / s on the surface (material AISI9840), operating at an effective focal length of 160mm, resulting in a microtexture, which is tested against a homogeneous untreated surface, provides a coefficient of friction of 0.51. The value after carrying out 4 consecutive trials was 0.51.

Embodiment 2

[0059] Using Nd laser: YVO 4 (1064nm) average power of 13W, operating at 20kHz, M 2 Values ​​< 1.2, scan rate 50mm / s on the surface (material AISI9840), operating at an effective focal length of 160mm, resulting in a microtexture, which is tested against a homogeneous untreated surface, provides a coefficient of friction of 0.52. The value after 4 consecutive trials was 0.54. Example 3

Embodiment 3

[0060] Using a fiber laser (1055-1070nm) with an average power of 100W, operating at 100kHz, M 2 Values ​​< 2.0, scan rate 2200mm / s on the surface (material AISI9840), operating at a focal length of 330mm, resulting in a microtexture, which was tested against a homogeneous untreated surface, provided a coefficient of friction of 0.72 . The value after carrying out 11 consecutive trials was 0.42.

[0061] In all 3 examples, the number of scans per channel (1) was 4.

[0062] In Example 3, the variability in the coefficient of friction versus the number of trials was due to the modification of the microtexture under the trials for the combination of processing parameters, the generation of the channels (1) being mainly controlled by the melting of the phenomenal material , thereby accumulating resolidified material at the edge of the channel (1) with a maximum height of 0.008 mm. It should be noted that in the first 2 examples, the dominant physical phenomenon was the amplitu...

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Abstract

The invention relates to a method for the treatment of metal, ceramic or stone surfaces, which can be used to obtain a surface with a high coefficient of friction, as well as to the metal, ceramic or stone surface that can be obtained by using this method, said method comprising a step in which a laser beam is applied to the surface to be treated according to a pre-defined geometric pattern formed by lines.

Description

technical field [0001] The invention relates to a method for the treatment of metal, ceramic or stone surfaces to obtain surfaces with a high coefficient of friction, and to metal, ceramic or stone surfaces obtainable by said method. [0002] The object of the invention is a method for the treatment of metal, ceramic or stone surfaces comprising the step of applying a laser beam to the surface to be treated in a predetermined geometric pattern formed by the lines. Background technique [0003] A structured surface can be thought of as a "patterned" surface with a regular pattern of ridges and valleys (which amounts to a deterministic description), but there are "structured" surfaces that do not have a regular morphology, Rather random (arbitrary). The function of structured surfaces varies, but their application is mainly in tribology. [0004] Many components of different types of machines operate under extremely lubricated conditions, where the lubricating layer is too t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/352B23K26/359B23K26/14
CPCB23K26/14B23K26/3584B23K26/359B23K2103/02B23K2103/08B23K2103/50B23K2103/52B23K26/364
Inventor J·M·珀·萨拉乔J·迪欧·瓦尔·加西亚F·奎恩特罗·马丁内斯A·里韦罗·罗德里格斯F·路斯库伊勒斯·罗德里格斯R·科梅萨尼亚·皮内罗A·阿巴尔德·罗佩斯
Owner WARTSILA IBERICA