Decision-making method of heavy-duty machine tool remanufacturing based on AHP-entropy weight and extension theory

Du, Yanbin; Zheng, Yashi; Wu, Guoao; Tang, Ying

doi:10.1016/j.jclepro.2019.119607

Cited by 88 publications

(44 citation statements)

References 39 publications

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“…Reconditioning processes should be planned according to paths of certain sequence for each component in the core. Reconditioning processes sequence for a core component depends on fault conditions to determine the optimal reconditioning sequence [7].…”

Section: Environmentalmentioning

confidence: 99%

“…Decision-making based similar performance of lathe remanufacturing into CNC machine can consider cost based difference between remanufacturing cost or price of remanufactured lathe and price of new machine. Decision making aided selection ratio of like new to new cost criterion can be determined based on formula developed by [7]:-C 1 = 1, if C r ˃C n and C 1 =C r /C n if C r ≤C n C 1 =Remanufactured lathe into CNC machine cost /New CNC machine cost. C r = Remanufactured lathe into CNC machine cost.…”

Section: Remanufacturing Cost Criterionmentioning

confidence: 99%

“…While the decision making aided selection can be applied using cost ratio which is used in this study to resemble greener selection tool comparing with experience based selection with taken in consideration that both are based on performance constancy. Remanufacturing of conventional lathe into CNC lathe of consistent economic viability where the cost criterion of remanufacturing is about less than C 1 =(C r /C n )=(1/2)=0.5 since (C r <C n ) where four conventional machine remanufacturing cost is less than the cost of manufacturing two new ones [7].…”

Section: Remanufacturing Cost Criterionmentioning

confidence: 99%

“…Remanufacturing time is a source of uncertainty which needs to be formulated within customers' tolerance. Decision making aided selection can be applied using time ratio of remanufacturing time to delivery time so that criterion C 2 can be quantitatively calculated based on formula developed by [7], which states :-C 2 = 1, if T r <T E and C 2 =T E /T r if T r ≥T E C 2 =Remanufactured lathe into CNC machine time / Delivery time. T r = Remanufactured lathe into CNC machine time.…”

Section: Remanufacturing Time Criterionmentioning

confidence: 99%

“…Production capacity of conventional machine remanufacturing is about the double of that for new machine manufacturing. So the time criterion of remanufacturing C 2 = 1 since Tr<TE where in manufacturing period of one new conventional machine two remanufactured machines can be produced [7].…”

Section: Remanufacturing Time Criterionmentioning

confidence: 99%

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Conventional Lathe Remanufacturing into CNC Machine Tool: Uncertainty Modeling Approach

Abdullah

2020

CJAST

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Aims: Uncertainty modeling to study possibility of proposing several remanufacturing alternatives of conventional lathe into CNC machine tool. Study Design: Conventional lathe into CNC machine remanufacturing-upgrading experience is used to project the suitable literature comparatively to construct uncertainty modeling. Faults modes of conventional lathe are studied to propose different remanufacturing solution based on faults literature viewpoints in field of lathe remanufacturing-upgrading, which are reviewed and modified to accommodate new changes that can accompany the current case study. Place and Duration of Study: Middle Technical University, Institute of Technology-Baghdad, Mechanical Techniques Department, between January 2020 and July 2020. Methodology: Decision making for selection of remanufactured alternatives and remanufacturing portfolio alternatives in field of lathe remanufacturing are reviewed. Experience in field of lathe remanufacturing is exploited to remodeling of existence models to optimize a remanufactured lathe into CNC machine as a case study. Methodology can be concluded into:- Literature survey to find two paths of: Faults and their statutes study. Remanufacturing portfolio study. Literature re-presentation and modeling. Literature results graphical modeling. Mathematical modeling of remanufacturability. Restoration alternative modeling Modeling of uncertainty. Results: Emerged technology aided conventional lathe into CNC lathe remanufacturing alternative exhibits good behavior of criteria toward optimization. While Advanced technology aided conventional lathe into CNC lathe remanufacturing alternative exhibits behavior to be of interesting ability to be a reservoir of developing potentials. Conventional technology aided conventional lathe remanufacturing alternative is of lower potentials to be developed into optimum solution. Conclusion: Remanufacturing-upgrading of conventional lathe into CNC machine in its mechanical part, it is merely traditional remanufacturing process of conventional lathe. Developing potentials can include that gearbox can be eliminated due to use of motorized axis, feed rod and lead screws, in both forward and transvers directions, can be replaced with motorized ball screws. Also tool post can be replaced with automatic tool changer while dovetail guide ways and saddles can be reused. Comparative literature based analysis and experience based analysis for uncertainty reduction can substitute the leak of relevant data acquisition for decision-making in field of remanufacturing. Uncertainty reduction modeling can enable simplify certain difficulties, the calculation of some criteria and adopting of simplified analysis methods so that theoretic and practical gap can be directed towards certain actual conditions to reach the optimum solution.

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Section: Environmentalmentioning

confidence: 99%

Section: Remanufacturing Cost Criterionmentioning

confidence: 99%

Section: Remanufacturing Cost Criterionmentioning

confidence: 99%

Section: Remanufacturing Time Criterionmentioning

confidence: 99%

Section: Remanufacturing Time Criterionmentioning

confidence: 99%

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Conventional Lathe Remanufacturing into CNC Machine Tool: Uncertainty Modeling Approach

Abdullah

2020

CJAST

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Fuzzy‐based sustainability modeling: Case study of remanufacturing waste sheet steel into angle mesh steel

Abdullah

2022

Environmental Quality Mgmt

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Remanufacturing of waste sheet steel (WSS) recovered from the shells of exterior components of end-of-life vehicles is a sustainable alternative to recycling and landfilling. It is proposed that producing angle mesh steel (AMS) from this WSS is a novel sustainable business model. In this case study, 1 to 1.25-m long strips of WSS were disassembled from the roof, bonnet, boot, rear and front doors, and fenders, and were formed into mesh with three different expansion ratios (2.19, 5.94, and 12.19).The expanded strips were flattened and roll formed into AMS sections for construction purposes. An integrated multi-criteria sustainability assessment of the technical, economic, environmental, and social factors was conducted to identify the 20 mostsustainable alternatives of end-of-life passenger cars from 200 designs manufactured between 2009 and 2019. The most sustainable exterior components for WSS to AMS remanufacturing were those that achieved a high closeness coefficient compared to the optimal performance. A pre-assessment was conducted to specify the complexity of remanufacturing by integrating the presence of topological discontinuities (inhomogeneous areas of the sheets that impede effective roll forming) within fuzzy modeling analysis. Both the important criteria and performance of the exterior-component alternatives were fuzzified to construct a performance-of-remanufacturing matrix and calculate the closeness coefficient of each alternative. The acquired experience from practical remanufacturing was applied to enable fuzzification-aided analysis. A final performance score was obtained by summing all relevant coefficients to analyze the sustainability of the 200 target car designs for remanufacturing WSS into AMS. The best component for remanufacturing is the roof, followed by the hood, boot, front door, and front fender in this order. The Volkswagen Passat with few discontinuities in the WSS was the best alternative, while Ford Fusion designs were the worst. The findings show that the remanufacturing route is viable and provide guidance for selecting the most appropriate components and vehicle models for efficient remanufacturing.

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Standardizing Guidelines and Procedures for Reassembly of Complex Second-Hand Heavy-Duty Equipment

Silva,

Pinto,

Pinto

et al. 2024

Lecture Notes in Mechanical Engineering

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Decision-making method of heavy-duty machine tool remanufacturing based on AHP-entropy weight and extension theory

Cited by 88 publications

References 39 publications

Conventional Lathe Remanufacturing into CNC Machine Tool: Uncertainty Modeling Approach

Conventional Lathe Remanufacturing into CNC Machine Tool: Uncertainty Modeling Approach

Fuzzy‐based sustainability modeling: Case study of remanufacturing waste sheet steel into angle mesh steel

Standardizing Guidelines and Procedures for Reassembly of Complex Second-Hand Heavy-Duty Equipment

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