High Power Diode Laser Application for Metals Surface Treatment Based on Wear Resistance Investigation

Abstract:

This paper presents the results of laser remelting influence on structure and properties of the surface of the AlSi9Cu2 aluminium cast alloy as well as X40CrMoV5-1 and 32CrMoV12-28 hot work tool steels, carried out using the high power diode laser (HPDL). Structure changes were determined in the work, especially structure of the surface after wear resistance test. Also hardness investigation of the different remelting areas was performed. The reason of this work was also to determine the laser treatment parameters, particularly the laser power, to achieve a good layer hardness for protection of this constructional and tool materials from losing their work stability and to make the material surface more resistant for work extreme conditions. Tungsten carbide and boron nitride powder was used for alloying. The goal of this work was also to determine technical and technological conditions for remelting the surface layer with HPDL. The remelted layers which were formed on the surface of the investigated aluminium and steels were examined metallographic and analysed using a hardness and wear resistance testers. Key words: Wear resistance, HPDL treatment, aluminium alloys, tool steel, remelting, alloying, surface treatment, boron nitride, tungsten carbide.

• Periodical: Advanced Materials Research (Volume 1036)
• Pages: 482-489
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1036.482
• Online since: October 2014
• Authors: Krzysztof Labisz*, Ewa Jonda, Tomasz Tański, Wojciech Borek, Małgorzata Czaja
• Keywords: Ceramic Powders, HPDL, Laser Remelting and Alloying, Surface Treatment, Wear Resistance

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