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Purpose: Improvement of functional properties alloyed of hot work tool steel surface layers is one of the goals of this paper. Design/methodology/approach: The material used for investigation was the hot work tool steel X38CrMoV5-3. Remelting and alloying of surface layers were made using the HPDL high power diode laser Rofin DL 020 in the laser power range of 1.2-2.3 kW. The carbide powders were applied on specimens prepared and degreased in this way; the powder was mixed with the sodium glass as inorganic binder in proportion of 30% binder and 70% powder. Paste coating 0.5 mm thick was put down in each case. Findings: The hardness changes of the surface layers obtained by remelting and alloying with carbides using the high power diode laser are accompanied with the improved tribological properties compared to the conventionally heat treated steel. The highest abrasion wear resistance, more than 2.5 times higher than that of the base material, was revealed in case the steel alloyed with vanadium carbide. Research limitations/implications: These advantages are the result of features unique to the HPDL, such as: shorter wavelength (thus better beam absorption for most metallic materials, and smaller absorption length) and better temporal beam stability (due to beam integration) compared to Nd:YAG and CO2 lasers. HPDL materials processing is, therefore, expected to produce better quality and more consistent and repeatable results for applications requiring beam spot sizes larger than 0.5 mm diameter. One of the issues of concern in the practical applications of the lasers in materials processing for mass production is the repeatability. Practical implications: The research results indicate to the feasibility and purposefulness of the practical use of remelting and alloying with the ceramic particles using the high power diode laser for manufacturing and regeneration of various tools from the X38CrMoV5-3 hot-work tool steel. Originality/value: The laser treatment methods is still the most precise way to improve properties of the surface layers.
Wydawca
Rocznik
Tom
Strony
191--194
Opis fizyczny
Bibliogr. 15 poz., fot., rys., tab.
Twórcy
autor
autor
autor
autor
autor
- Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland, leszek.dobrzanski@polsl.pl
Bibliografia
- [1] J. Adamczyk, A. Grajcar. Effect of heat treatment conditions on the structure and mechanical properties DP-type steel. Journal of Achievement in Materials and Manufacturing Engineering 17 (2006) 305-308.
- [2] E. Bayraktar, M. Grumbach, D. Kaplan. Effect of forming rate on the impact tensile properties of the steels under crash test, Journal of Achievement in Materials and Manufacturing Engineering 20 (2007) 55-61.
- [3] L. Bourithis, G.D. Papadimitriou, J. Sideris, Comparison of wear properties of tool steels AISI D2 and O1 with the same hardness, Tribology International 39 (2006) 479-489.
- [4] L.A. Dobrzański, M. Bonek, E. Hajduczek, A. KlimpeL, A. Lisiecki. Comparison of the structures of the hot-work tool steels laser modified surface layers, Journal of Materials Processing Technology 164-165 (2005) 1014-1024.
- [5] P. Dumitrescu, P. Koshy, J. Stenekes, M.A. Elbestawi, High-power diode laser assisted hard turning of AISI D2 tool steel, International Journal of Machine Tools and Manufacture 46 (2006) 2009-2016.
- [6] C. Georges, N. Semmar, C. Boulmer-Leborgne. Effect of pulsed laser parameters on the corrosion limitation for electric connector coatings, Optics and Lasers in Engineering 44 (2006) 1283-1296.
- [7] J. Kusiński. Laser Applications in Materials Engineering, WN „Akapit”, Cracow, 2000 (in Polish).
- [8] E. Ohmura, F. Fukuyo, K. Fukumitsu, H. Morita, Internal modified-layer formation mechanism into silicon with nanosecond laser, Journal of Materials Processing Technology 164-165 (2005) 381-384.
- [9] Lin Li., The advances and characteristics of high-power diode laser materials processing, Optics and Lasers in Engineering 34 (2000) 231-253.
- [10] E. Rozniata, J. Pacyna. Effect of structure on mechanical properties of Cr-Ni-Mo cast steel, Archives of Materials Science and Engineering 28/4 (2007) 224-230.
- [11] M. Sokovic, D. Pavletic, S. Fakin. Application of Six Sigma methodology for process design quality improvement, 13th Scientific International Conference „Achievements in Mechanical and Materials Engineering, AMME' 2005, Gliwice - Wisła, 2005, 611-614.
- [12] S. Yahong, H. Satoshi, Y. Masato, U. Hitoshi, T. Hironobu. Fatigue behavior and fractography of laser-processed hot work tool steel 73 (2004) 655-660.
- [13] K. Dae-Hwan, H. Seong-Hyeon, K. Byoung-Kee, Fabrication of ultrafine TaC powders by mechano-chemical process, Materials Letters (2004) 87-92.
- [14] L.J. Yang, Wear coefficient of tungsten carbide against hot-work tool steel disc with two different pin settings., Wear, 257 (2004) 234-240.
- [15] M. Vural, H.F. Muzafferoglu, U.C. Tapici.: The effect of welding fixtures on welding distortions, Journal of Achievement in Materials and Manufacturing Engineering, 20 (2007) 511-515.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS3-0019-0002