A decision-making model for the rework of defective products

Soares, João; Tereso, Anabela Pereira; Sousa, Sérgio

doi:10.1108/ijqrm-06-2019-0185

Cited by 8 publications

(25 citation statements)

References 41 publications

(60 reference statements)

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“…The GRA results were not verified with other MCDM (Multi-Criteria Decision-Making Method) methods. However, we tested other approaches for the possibility of including MCDM in the process of identifying causes of incompatibility [24][25][26][27][28][29]. The test of the combination method MCDM (or FMCDM-Fuzzy Multi-Criteria Decision-Making Method) with the quality management tools was effective in identifying the precise causes of the incompatibilities of product.…”

Section: Discussionmentioning

confidence: 99%

“…The Polish industry was chosen because the foundry industry is the most developed in Poland. Additionally, in the foundry industry, special processes are the most needed, as shown in the studies [18][19][20][21]24,26,29]. Cracks occur as a result of the loss of ductility of the material (i.e., exceed the tensile strength).…”

Section: Test Of Modelmentioning

confidence: 99%

“…The idea was to verify cause-and-effects relations of incompatibility of product. In the study [24], the method was tested that was a combination technique, that is, brainstorming the Ishikawa diagram and the DEMATEL method. The purpose was to develop combination methods to verify complex cause-and-effect problems.…”

Section: Introductionmentioning

confidence: 99%

“…However, in view of the specificity of special processes occurring in the mechanical industry, it seems adequate to realize the initial test, for example, for the casting process. That resulted from a review of the literature on the subject [18][19][20][21]24,26,29], after which it was proved that the most frequent errors occur due to foundry processes. Therefore, the modeling was tested for cracks in the outer hull of the four-point bearing of alloy 418 (CPW-S 5616).…”

Section: Introductionmentioning

confidence: 99%

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A New Model Supporting Stability Quality of Materials and Industrial Products

Siwiec

Pacana

2022

Materials

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Stabilizing the quality of industrial product materials remains a challenge. This applies mainly to new or significantly modified materials. It also refers to special processes. The tests of product quality can stabilize the quality of industrial product materials. The popular method for this is using the non-destructive testing (NDT). The NDT identifies incompatibility but does not determine the cause of its occurrence. Hence, it was necessary to support the process of identifying causes of incompatibilities in products. The purpose of the article was to develop a model based on a new approach to determine the ranking of actions that are possible as part of the process of stabilizing the quality of industrial products. The model was developed to improve quality through sequential and systematic methods of identification (and reduce) and incompatibility. The quality management techniques and decision method were applied and combined in this model, i.e., SMART(-ER) the method, method of selecting a team of experts, brainstorming (BM), Ishikawa diagram with the 5M rule, Likert scale validation technique, arithmetic average, and Grey Relational Analysis (GRA). The test of this model was carried out to find cracks in the outer hull of 418 alloy four-point bearing (CPW-S 5616), which was identified by NDT (magnetic-powder method). As a result, a ranking of activities was obtained to stabilize the quality of the product and the main cause of incompatibility was indicated, i.e., the cause which can influence to the most degree influence on occurrence the incompatibility. The originality of the proposed model is an application in the right order of specially selected and combined qualitative methods and supporting decision methods. The finding of causes of incompatibility of products is the basis of product improvement in the area of stabilizing the quality of materials, mainly by the occurrence of special processes. The universality of the model refers to the possibility of its application for any material, processes of its formation, and processes of products, and any incompatibilities where the model can be integrated with quality control.

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Section: Discussionmentioning

confidence: 99%

Section: Test Of Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A New Model Supporting Stability Quality of Materials and Industrial Products

Siwiec

Pacana

2022

Materials

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“…Their optimization model includes the inspection cost, the cost of non-conforming items entering the assembly line and the cost of rejecting the items. Soares et al (2020) proposed a decision support model that can be used to help decide the rework of defective products. The objective of their model was to reduce the cost of the defect, and consequently reduce the total quality costs.…”

Section: The Literaturementioning

confidence: 99%

The economic order quantity model with inspection policy of zero-defect single sampling

Nakhaeinejad

2021

IJQRM

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PurposeThis paper proposes a new inventory model with inspection policy because in practice the received orders may contain non- conforming (NC) items. So, a buyer who receive an order from a supplier should use an inspection policy.Design/methodology/approachThe inspection policy is assumed to be zero-defect single sampling. Under this policy a lot is accepted only if no defect has been identified in the inspected sample. The fraction of NC is assumed to be a random variable following a Binomial distribution and the number of NC items detected by inspection assumed to be a random variable, which follows a hypergeometric distribution. Order quantity and sample size are the two decision variables. A solution procedure is presented for the proposed model. The proposed procedure presents the optimal solution.FindingsNumerical examples presented to illustrate the procedure outlined for the proposed model and its applicability. The results of numerical examples and comparing them with traditional EOQ model reveal that by the proposed model, the buyer could reduce total cost that shows the efficiency and validity of the proposed model.Originality/valueThe novelty of this paper is the new proposed model that considers inspection policy in inventory management. The proposed model determines sample size as well as order quantity to consider both subject of inventory management and quality control, simultaneously.

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Theoretical framework for strategic productivity in manufacturing: the primary transformation model (PTM)

Guerreiro

Fidelis²,

Lima³

2022

IJPPM

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PurposeA quantitative theoretical model is proposed to measure how productivity performance can be affected by strategic decisions related to specific competitive priorities.Design/methodology/approachThis study proposes the Primary Transformation Model (PTM) and an equation to measure cause-and-effect relationships between productivity and competitive priorities.FindingsThe interdependence between productivity and competitive priorities was studied using the PTM and the proposed model indicates that strategies that improve external performance also impact internal productivity. It was also observed that the compatibility between competitive priorities depends on the initial manufacturing conditions and the implementation method adopted.Research limitations/implicationsThe proposed model is theoretical and, as such, is an abstraction of reality and does not consider all possible aspects. It consists of a novel approach that still requires further empirical testing. The PTM provides insights about the trade-offs between productivity and strategic objectives, as well, contributes to the ongoing research on manufacturing strategy and can be further developed in future studies.Practical implicationsThe main practical implication is to allow companies to relate their strategic decisions to their productivity performance.Social implicationsThis research also contributes to societal issues by enabling firms to better align strategic objectives and operations, which ultimately allows offering products more suited to the needs of customers, thus making better use of the required resources and favoring economic growth.Originality/valueThe model proposed allows objective assessment of actions aiming at operational efficiency and effectiveness, in addition to providing insights into cause-and-effect relationships between productivity and competitive priorities. The model can also be used in empirical investigations on manufacturing strategy.

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A decision-making model for the rework of defective products

Cited by 8 publications

References 41 publications

A New Model Supporting Stability Quality of Materials and Industrial Products

A New Model Supporting Stability Quality of Materials and Industrial Products

The economic order quantity model with inspection policy of zero-defect single sampling

Theoretical framework for strategic productivity in manufacturing: the primary transformation model (PTM)

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