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

2014 ◽  
Vol 1036 ◽  
pp. 482-489 ◽  
Author(s):  
Krzysztof Labisz ◽  
Ewa Jonda ◽  
Tomasz Tański ◽  
Wojciech Borek ◽  
Małgorzata Czaja
Keyword(s):  
Wear Resistance ◽  
Boron Nitride ◽  
Surface Treatment ◽  
Tungsten Carbide ◽  
Diode Laser ◽  
High Power ◽  
Cast Alloy ◽  
Material Surface ◽  
Power Diode ◽  
High Power Diode Laser

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.

scholarly journals The Effect of Laser Surface Treatment on Structure and Mechanical Properties Aluminium Alloy ENAC-AlMg9

2016 ◽  
Vol 61 (3) ◽  
pp. 1343-1350 ◽  
Author(s):  
W. Pakieła ◽  
L.A. Dobrzański ◽  
K. Labisz ◽  
T. Tański ◽  
K. Basa ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Tungsten Carbide ◽  
Aluminium Alloy ◽  
Diode Laser ◽  
High Power ◽  
Ceramic Powder ◽  
Laser Surface ◽  
Laser Surface Treatment ◽  
Power Diode ◽  
High Power Diode Laser

Abstract In this work, the influence of a high power diode laser surface treatment on the structure and properties of aluminium alloy has been determined. The aim of this study was to improve the mechanical and tribological properties of the surface layer of the aluminium alloy by simultaneously melting and feeding tungsten carbide particles into the molten pool. During the process was used high-power diode laser HPDL. In order to remelt the aluminium alloy surface the HPDL laser of 1.8, 2.0 and 2.2 kW laser beam power has been used. The linear laser scan rate of the beam was set 0.5 cm/s. In order to protect the liquid metal during laser treatment was used argon. As a base material was used aluminium alloy ENAC-AlMg9. To improve the surface mechanical and wear properties of the applied aluminium alloy was used biphasic tungsten carbide WC/W2C. The size of alloying powder was in the range 110-210 µm. The ceramic powder was introduced in the remelting zone by a gravity feeder at a constant rate of 8 g/m.

High Power Diode Laser Clad Cu-WC-Ni Composite Coatings on Brass for Wear Resistance Enhancement

2013 ◽  
Vol 816-817 ◽  
pp. 47-53
Author(s):  
An Ru Yan ◽  
Zheng Wang ◽  
Zhi Yong Wang
Keyword(s):  
Electrical Conductivity ◽  
Wear Resistance ◽  
Diode Laser ◽  
High Power ◽  
Composite Coatings ◽  
Wear Test ◽  
Wear Properties ◽  
Ceramic Phase ◽  
Power Diode ◽  
High Power Diode Laser

To improve the wear resistance of brass substrate while retaining the electrical conductivity, laser cladding was applied to Cu-WC-Ni composite coating on brass using High Power Diode Laser. Microstructures, phase constitution and wear properties are investigated by means of scanning electronic microscopy with energy disperse spectroscopy and X-ray diffraction, as well as microhardness test and speed friction and wear test. The result shows that microhardness and wear resistance of clad coating were improved obviously compared with the brass substrate owing to the addition of WC ceramic phase, when the content of WC is 25%, the hardness of coating is 4 times of substrate, as well the cumulation mass loss is 1/19 of substrate. Electrical conductivity did not change as copper powder had high electrical conductivity.

Laser Alloying with WC Ceramic Powder in Hot Work Tool Steel Using a High Power Diode Laser (HPDL)

2006 ◽  
Vol 15-17 ◽  
pp. 193-198 ◽  
Author(s):  
Marek Piec ◽  
Leszek Adam Dobrzański ◽  
Krzysztof Labisz ◽  
Ewa Jonda ◽  
Andrzej Klimpel
Keyword(s):  
Surface Layer ◽  
Tungsten Carbide ◽  
Diode Laser ◽  
Tool Steel ◽  
High Power ◽  
Feed Rate ◽  
Powder Feed Rate ◽  
Powder Feed ◽  
Power Diode ◽  
High Power Diode Laser

Investigations include alloying the X38CrMoV5-3 hot-work tool steel surface layer with the tungsten carbide, using the high power diode laser (HPDL). The tungsten carbide ceramic particles of the medium grain size according to FSSS = 50 /m were introduced using the rotor conveyer to improve the properties of the surface layer. The powder feed rate was set at the steady level of 8.64g/min. Remelting and alloying were carried out several times in the laser power range of 1.2 – 2.3 kW in the remelting/alloying, alloying/remelting sequences. The structural mechanism was determined of gradient layer development, effect was studied of alloying parameters, gas protection method, and powder feed rate on its mechanical properties, and especially on its hardness, abrasive wear resistance, and roughness. Structure changes were revealed consisting, in particular, in its refining, and also hardness and microhardness changes in comparizon to the nonremelted steel. Examination results obtained with the EDX microanalysis, surface and linear analysis of the chemical composition, as well as the X-ray qualitative phase analysis are presented.

Effect of high power diode laser surface melting on wear resistance of magnesium alloys

Wear ◽  
2006 ◽  
Vol 260 (1-2) ◽  
pp. 175-180 ◽  
Author(s):  
Ghazanfar Abbas ◽  
Lin Li ◽  
Uzma Ghazanfar ◽  
Zhu Liu
Keyword(s):  
Wear Resistance ◽  
Diode Laser ◽  
Magnesium Alloys ◽  
High Power ◽  
Surface Melting ◽  
Laser Surface ◽  
Laser Surface Melting ◽  
Power Diode ◽  
High Power Diode Laser

Structure and Properties of Gradient Layers Using High Power Diode Laser

2006 ◽  
Vol 530-531 ◽  
pp. 269-274
Author(s):  
Leszek Adam Dobrzański ◽  
Marek Piec ◽  
Zuzanka Trojanová ◽  
Józef Lelątko ◽  
Andrzej Klimpel
Keyword(s):  
Surface Layer ◽  
Tungsten Carbide ◽  
Diode Laser ◽  
High Power ◽  
Feed Rate ◽  
Powder Feed Rate ◽  
Powder Feed ◽  
Protection Method ◽  
Power Diode ◽  
High Power Diode Laser

Investigations include alloying the X38CrMoV5-3 hot-work tool steel surface layer with the tungsten carbide, using the high power diode laser (HPDL). The tungsten carbide ceramic particles of the medium grain size according to FSSS = 50 Bm were introduced using the rotor conveyer to improve the properties of the surface layer. The powder feed rate was set at the steady level of 8.64g/min. Remelting and alloying were carried out several times in the laser power range of 1.2 – 2.3 kW in the remelting/alloying, alloying/remelting sequences. The structural mechanism was determined of gradient layer development, effect was studied of alloying parameters, gas protection method, and powder feed rate on its mechanical properties, and especially on its hardness, abrasive wear resistance, and roughness. Structure changes were revealed consisting, in particular, in its refining, and also hardness and microhardness changes in comparison to the non-remelted steel. Examination results obtained with the EDX microanalysis, surface and linear analyses of the chemical composition, as well as the X-ray qualitative phase analysis are presented.

Surface treatment of granite by high power diode laser

2003 ◽  
Vol 15 (4) ◽  
pp. 261-266 ◽  
Author(s):  
J. Pou ◽  
C. Trillo ◽  
R. Soto ◽  
A. F. Doval ◽  
M. Boutinguiza ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Diode Laser ◽  
High Power ◽  
Power Diode ◽  
High Power Diode Laser

Cladding of Tungsten Carbide and Stellite Using High Power Diode Laser to Improve the Surface Properties of Stainless Steel

2012 ◽  
Vol 585 ◽  
pp. 498-501 ◽  
Author(s):  
Raghuvir Singh ◽  
S.K. Tiwari ◽  
Suman K. Mishra
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Tungsten Carbide ◽  
Diode Laser ◽  
High Power ◽  
Surface Engineering ◽  
Industrial Applications ◽  
Engineering Technique ◽  
Power Diode ◽  
High Power Diode Laser

Surface engineering is one of the most viable methods, in addition to development of new alloys and equipment design, to minimize degradation due to cavitation erosion, and corrosion. Laser surface cladding is relatively a newer engineering technique to produce metallurgically bonded coating for industrial applications due to its inherent benefits. Present paper reports the results obtained on the laser cladding of stainless steel with tungsten carbide (WC) and stellite alloy powder using high power diode laser (HPDL) at various laser parameters. Cladded specimens were characterized for erosion, and corrosion resistance. Both WC and stellite cladding have increased the erosion resistance of stainless steels. WC cladding was found to reduce the corrosion resistance of steel while stellite showed it to increase significantly.

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