FEM modelling for laser surface heat treatment
Laser Surface Treatment
... Besides laser beam interaction with the substrate, LC and LSA impose additional constraints of clad and alloying materials that may be supplied in the form of preplaced powder or through powder ...of laser ...
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Effect of heat treatment and laser surface remelting on AlSi10Mg alloy fabricated by selective laser melting
... in surface finish. The surface roughness indicator R a was determined to be ...as heat treatment and ...enhance surface hardness using LSR, which is a significant step towards the ...
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Precise temperature calibration for laser heat treatment
... induction heat sources and the resulting temperature fields on the melting process of the metal ...absorbed heat portion of each element was defined manually taking the FEM results into ...of ...
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Laser Heat Treatment of Gray and Nodular Irons
... heat treatment. Recently, special attention has been devoted to laser heat treatment of cast iron m ostly because of the good combination between the ductile core and the newly formed ...
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Improving the fatigue behaviour of a selectively laser melted aluminium alloy: influence of heat treatment and surface quality
... the surface quality as a ...at surface defects in both as-built and machined ...the surface irregularities, surface pores were still observed since sub-surface pores in the as-built ...
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Dynamic Bayesian network-based anomaly detection for in-process visual inspection of laser surface heat treatment
... Abstract. We present the application of a cyber-physical system for in- process quality control based on the visual inspection of a laser surface heat treatment process. To do this, we propose ...
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Fem modelling of human eye for investigating the thermal effects of tumour on the ocular surface temperature
... The heat generated by tumor would tend to increase the temperature on the corneal surface of ...cornea's surface due to the presence of ...corneal surface produced by T1 tumor (least in size) ...
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Thermomechanical modelling of laser surface glazing for H13 tool steel
... the surface due to the reduction of the thermal gradient as well as thermal ...for laser cladding of H13 tool steel substrate at laser power 2200 W, beam width 3 mm, scan speed 200 mm min − 1 ...W ...
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Laser surface treatment of grey cast iron by high power diode laser
... the surface. During the process, a laser scans across the material, acting as a source, to heat the surface of the material to the austenitization ...a heat sink to cool down the ...
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Recent advances in laser surface treatment of titanium alloys
... 2 laser in continuous mode equipped with a coaxial nozzle for powder feeding to generate Ti-based MMC on Ti substrate using laser cladding and the powder blowing ...Nd:YAG laser system and used ...
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Increasing the resistance of a NiCrBSi coating to heat wear by means of combined laser heat treatment
... after laser cladding and combined laser heat treatment including laser cladding and annealing at 1025 °С (2 h holding) followed by cooling in a vacuum furnace, the tests being performed ...
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Modelling of Laser Surface Glazing for Metallic Materials by Finite Element Method
... similar laser melting ...LSG modelling from the literature review have also been described relating to the objectives of the ...thermal modelling for LSG will be presented with the methodology, ...
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Modelling of Laser Surface Glazing for Metallic Materials by Finite Element Method
... similar laser melting ...LSG modelling from the literature review have also been described relating to the objectives of the ...thermal modelling for LSG will be presented with the methodology, ...
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Effect of Laser Surface Treatment on Mechanical Properties of CK45 Steel
... 2-2 Heat Treatment: Heat treatment was performed by using CW Nd: YAG laser at ...of laser system 5 watt. We applied three different laser powers ...powermeter. ...
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Controlling thermal deformation using a heat sink in laser heat treatment of carbon steel sheets
... of heat sink were used: steel, stainless steel 316, copper and no heat sink were ...of heat sink, four interaction time and six levels of intensity were used for both types of ...within heat ...
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The influence of pre-heat treatment and laser hardening on the steel structure formation
... 2 Laser technique and physic-technology science department, National technical university of Ukraine «Kiev polytechnic institute», Kiev, UKRAINE ABSTRACT Efficiency of application of laser hardening is a ...
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FEM Approach for Transient Heat Transfer in Human Eye
... This model may help to understand the thermal be- havior of eye, which can be very crucial in ocular dis- eases like corneal pain, presbyopia, cataracts etc. This may also prove to be valuable in several eye therapies ...
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The Influence of Post-Heat-Treatments on the Tensile Strength and Surface Hardness of Selective Laser Melted AlSi10Mg
... considered heat-treatment conditions grouped corresponding to configurations (a) to (c) Conclusion The selective laser melting procedure results in an anisotropic material behaviour with ...
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Modelling the laser treatment of vascular lesions
... The illumination time is calculated from the measurement of the area of the spot as incident on the skin and the rate at which the light is applied to the skin (here the term rate is [r] ...
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SURFACE TREATMENT OF NANO-STRUCTURED STEEL WITH PULSED LASER
... the laser surface treatment of Fe 52 Cr 18 Mo 7 B 16 C 4 Nb 3 alloy has been investigated with the use of pulsed Nd:YAG laser, and the optimum pulse duration parameter for having finer ...
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