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.

scholarly journals Properties of the Aluminium Alloy EN AC-51100 after Laser Surface Treatment

2016 ◽  
Vol 61 (1) ◽  
pp. 199-204 ◽  
Author(s):  
T. Tański ◽  
W. Pakieła ◽  
D. Janicki ◽  
B. Tomiczek ◽  
M. Król
Keyword(s):  
Silicon Carbide ◽  
Surface Treatment ◽  
Aluminium Alloy ◽  
Composite Layer ◽  
Laser Surface ◽  
Carbide Powder ◽  
Laser Surface Treatment ◽  
Silicon Carbide Particles ◽  
Power Diode ◽  
High Power Diode Laser

In this paper, the influence of a laser surface treatment on the structure and properties of aluminium alloy has been determined. The aim of this work was to improve the tribological properties of the surface layer of the EN AC-51100 aluminium alloy by simultaneously melting and feeding silicon carbide particles into the molten pool. The silicon carbide powder was introduced into the liquid metal using a gravity feeder within a constant feed rate of 1 g/min. A high power diode laser (HPDL) was used for remelting. Laser beam energies used in experiments were 1.8 kW, 2.0 kW and 2.2 kW, combined with the constant velocity of 50 mm/min. As a result of the laser treatment on the aluminium alloy, a composite layer with greater hardness and wear resistance compared to the based material was obtained.

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.

Numerical and experimental study of the temperature field evolution of Mg alloy during high power diode laser surface melting

Optik ◽  
2015 ◽  
Vol 126 (7-8) ◽  
pp. 739-743 ◽  
Author(s):  
Yu Gan ◽  
Wenxian Wang ◽  
Zeqin Cui ◽  
Xinggui Yan ◽  
Zhuosen Guan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Temperature Field ◽  
Diode Laser ◽  
High Power ◽  
Surface Melting ◽  
Laser Surface ◽  
Laser Surface Melting ◽  
Mg Alloy ◽  
Power Diode ◽  
High Power Diode Laser
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