Parameter optimization and experimental study of the sprocket repairing using laser cladding

Liu, Huaming; Hu, Zeqi; Qin, Xunpeng; Wang, Yongliang; Zhang, Jiang; Huang, Song

doi:10.1007/s00170-017-0066-y

Cited by 72 publications

(24 citation statements)

References 22 publications

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“…Averages were calculated by multiple measurements in the same region to reduce error. Equation (1) was used to calculate the dilution rate afterwards [17,18]. The measured and calculated geometric characteristic results are also shown in Table 3.…”

Section: Methodsmentioning

confidence: 99%

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Lian

Zhang

et al. 2019

Metals

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Laser cladding on curved surfaces is essential in industrial applications for restoration and remanufacturing of high-value parts. This study investigated the influence of different factors on clad width, clad height, and dilution rate in curved surface laser cladding with curved path. Mathematical models were developed using central composite designs to predict these geometric characteristics by controlling laser power, scanning speed, gas flow, and altering the outside radius of the cylindrical substrate. Analysis of variance and response surface methodology indicated that clad width increased with increasing laser power and reducing scanning speed. Clad height positively correlated to laser power and negatively correlated to the outside radius of the cylindrical substrate. Increasing the laser power while decreasing the scanning speed led to an increase in dilution rate. Afterwards, the geometric characteristics of the clad were improved by optimizing these factors with the target to maximize clad width and height as well as to minimize dilution rate. The difference between model predictions and experimental validations for clad width, clad height, and dilution rate were 3.485%, 3.863%, and 6.566%, respectively. The predicted accuracy was verified with these models, and they were able to provide theoretical guidance to predict and control the geometric characteristics of curved surface laser cladding with a curved path.

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Section: Methodsmentioning

confidence: 99%

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Lian

Zhang

et al. 2019

Metals

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“…The gradient morphology change of the cladding coating microstructure is due to the difference of G/R ratio at different positions during solidification, where G represents the temperature gradient and R represents the solidification rate [14]. At the beginning of solidification, the G/R ratio near the interface is very high, resulting in the growth of columnar dendrites (in Figures 3a and 4b).…”

Section: Microstructurementioning

confidence: 97%

Microscopic Analysis and Electrochemical Behavior of Fe-Based Coating Produced by Laser Cladding

Chen

Zhou

Chen

et al. 2017

Metals

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Abstract:The effect of laser cladding on the surface microstructure and corrosion properties of coated/uncoated specimens were investigated. Fe-based alloy coating was produced on 35CrMo steel by laser cladding. The phase composition, microstructure, interface element distribution, microhardness and corrosion resistance of the cladding coating were measured. The results show that the cladding layer is mainly composed of α-Fe phases, the microstructure presents a gradient distribution, and a good metallurgical bond is formed at the boundary with the substrate. Microhardness profiles show that the average microhardness of the cladding coating is about 2.1 times higher than that of the uncoated specimen. In addition, the electrochemical results show that the coated specimen exhibits far better corrosion resistance than to the uncoated specimen.

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“…Sprocket Mining [66] Laser Cladding (DED) Ascertaining the optimum process parameters of LC for sprocket reparation.…”

Section: Focus Of Previous Studymentioning

confidence: 99%

“…This section discusses the focus of study by previous researchers and the field of industry in which AM has been applied for repair and restoration.. Table 5 provides a compilation of the studies by previous researchers and indicates the type of repaired object, AM technology used in reparation, and the focus of study such as geometric reconstruction algorithm and optimization of process systems parameters. Sprocket Mining [66] Laser Cladding (DED) Application of the LC process in sprocket restoration.…”

Section: Focus Of Previous Studymentioning

confidence: 99%

Additive Manufacturing for Repair and Restoration in Remanufacturing: An Overview from Object Design and Systems Perspectives

2019

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Repair and restoration is an important step in remanufacturing as it ensures end-of-life products are returned to as-new condition before entering the subsequent life cycle. Currently, such processes are carried out manually by skilled workers. The advent of additive manufacturing (AM) has encouraged researchers to investigate its potential in automated repair and restoration, thus rendering it as a more effective method for remanufacturing. However, the application of this widespread technology for repair and restoration in remanufacturing is still new. This paper provides an overview of the principles and capabilities offered by the existing metal AM technology for object repair and restoration namely, direct energy deposition, powder bed fusion, and cold spray technology. Their applications in the repair and restoration of remanufacturable components are presented and discussed along with issues requiring attention from the perspectives of object design and process systems capabilities. The study provides a compilation of the challenges in AM repair and restoration, which primarily lie in the aspects of geometrical complexity, geometric dimensioning and tolerancing, material compatibility, and pre-processing requirements since it is critical for remanufacturing to restore end-of-life components to as new-condition. The paper concludes with suggestions for further works in AM restoration to enable product life cycle extension in the circular economy.

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Parameter optimization and experimental study of the sprocket repairing using laser cladding

Cited by 72 publications

References 22 publications

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Microscopic Analysis and Electrochemical Behavior of Fe-Based Coating Produced by Laser Cladding

Additive Manufacturing for Repair and Restoration in Remanufacturing: An Overview from Object Design and Systems Perspectives

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