Laser cladding of Ni based powder on a Cu-Ni-Al glassmold: Influence of the process parameters on bonding quality and coating geometry

Bourahima, Fazati; Helbert, Anne‐Laure; Rege, M.; Ji, Vincent; Solas, Denis; Baudin, Thierry

doi:10.1016/j.jallcom.2018.09.004

Cited by 36 publications

(13 citation statements)

References 12 publications

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“…The ANalysis of Variance (ANOVA) is a statistical method used to obtain the relationship between process parameters and output responses which are the coating height H and width W. The range of the processing parameters for the studied samples for ANOVA analysis and microstructural characterization are given in table 1. Details of this technique are given in a previous published work [1]. 14 samples were used for this statistical study.…”

Section: Experimental and Anova Methodsmentioning

confidence: 99%

“…Laser cladding by the LMD (Laser Metal Deposition) technique is a surfacing method of producing high quality bonded coatings on a substrate in order to improve its thermal and mechanical resistance. In the glass industry, this process is used to protect glass mold against corrosion, abrasion and thermal fatigue [1]. During laser cladding of a Ni-based powder on Gray Cast Iron (GCI) with lamellar graphite, cracks can appear in the coating as well as in the substrate.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Microstructural Evolution during Laser Cladding of Ni Based Powder on GCI Glass Molds

Bourahima¹,

Helbert

et al. 2019

KEM

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In glass industry, laser cladding is an innovative surfacing technique allowing to deposit a layer of nickel to protect glass mold against corrosion, abrasion and thermal fatigue. This method (powder fusion by projection), well known in additive manufacturing represents a real technological leap for the glass industry. But during laser cladding of Ni-based powder on gray cast iron, cracks can be observed for some process conditions. These cracks are often due to the Heat Affected Zone that creates structural stresses linked to the development of a martensitic structure in the ferritic matrix of the lamellar graphite cast iron. The aim of this work is to observe the impact of laser cladding (without substrate pre-heating usually employed to limit cracking) on the coating behavior but also on the flake-graphite cast iron substrates. The microstructure and the mechanical properties were studied (SEM and microanalysis, microhardness) around the interface cladding/substrate. Also, the impact of the processing parameters (power P (1500-2300 W), scanning speed v (2.5-10 mm/s) and powder feeding rate PFR (24.5-32.5 g/min) was studied by using the ANOVA (ANalysis Of VAriance) technique. It has been observed that laser cladding on graphite cast iron is possible without cracks by limiting the linear energy induced by the process. Also, an optimization of the processing parameters (P, v, PFR) in order to obtain the industrial expected geometry of the coating has been proposed.

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Section: Experimental and Anova Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Microstructural Evolution during Laser Cladding of Ni Based Powder on GCI Glass Molds

Bourahima¹,

Helbert

et al. 2019

KEM

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“…The above studies have mainly focused on changing the cladding materials to improve the surface properties. The combination of process parameters also has a significant effect on the performance of the cladding layer [10]. Among them, the laser power, scanning speed, powder feeding rate, and others are the key factors to determine the service life of remanufactured parts.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Multi-Objective Optimization of Process Parameters of 45 Steel Laser Cladding Ni60PTA Alloy Powder

Long

Qiu

et al. 2022

Coatings

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When laser cladding is used to repair parts, the interaction of parameters has a significant influence on equipment performance. In order to explore the process parameters and quality of Ni60PTA coating, the statistical relationship between the process parameters (laser power, scanning speed, and powder feeding rate) and the responses (dilution ratio, ratio of layer width to height, and contact angle) was established by experiments using the response surface method (RSM) and variance analysis. The results show that the laser power is the dominant factor affecting the dilution ratio. However, the scanning speed has the greatest influence on the ratio of layer width to height and contact angle. These experimental results show that the proposed model can predict the actual data. In addition, the microstructure and microhardness of the samples prepared with the optimum process parameters were characterized. The results show that the quality of the cladding layer is good without cracks, deformation, and pores. The microstructure of the cladding zone is mainly composed of γ (Ni), FeNi3, M (M = Fe, Ni, Cr)23C6, M7C3, and CrB. The average microhardness of the coating is about 620 HV0.2, which is about 3.1 times that of 45 steel substrate.

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“…Bourahima [17] investigated the impact of the process parameters on the coating geometry by using the method on analysis of variance, and it indicated the influence of each process parameter on the coating geometry (width, height) and the bonding quality. Chen [18] designed multi-track cladding experiments with L 27(313) orthogonal array by Taguchi method, and a prediction model based on support vector machine (SVM) was developed for the quality characteristics of the cladding coatings.…”

Section: Introductionmentioning

confidence: 99%

Geometry Analysis and Microhardness Prediction of Nickel-Based Laser Cladding Layer on the Surface of H13 Steel

2021

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In order to improve the resistance to thermal fatigue and wear resistance of H13 hot-working tool steel, a nickel-based composite coating was prepared on its surface by laser cladding technology. The relationship was studied between the main processing parameters and the size of the cladding layer such as height and width. Based on the orthogonal polynomial regression method, the relationships were modeled mathematically between laser power, scanning speed, powder feeding voltage and microhardness. This model was proved to be able to predict the laser power and powder feeding voltage under 1100 Hv microhardness.

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Laser cladding of Ni based powder on a Cu-Ni-Al glassmold: Influence of the process parameters on bonding quality and coating geometry

Cited by 36 publications

References 12 publications

Optimization of Microstructural Evolution during Laser Cladding of Ni Based Powder on GCI Glass Molds

Optimization of Microstructural Evolution during Laser Cladding of Ni Based Powder on GCI Glass Molds

Multi-Objective Optimization of Process Parameters of 45 Steel Laser Cladding Ni60PTA Alloy Powder

Geometry Analysis and Microhardness Prediction of Nickel-Based Laser Cladding Layer on the Surface of H13 Steel

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