Lucas Equeter

• PhD in Engineering Sciences and Technology
• Junior lecturer at University of Mons

The machining industry raises an ever-growing concern for the significant cost of cutting tools in the production process of mechanical parts, with a focus on the replacement policy of these inserts. While an early maintenance induces lower tool return on investment, scraps and inherent costs stem from late replacement. The framework of this paper...

The degradation of the cutting tool and its optimal replacement is a major problem in machining given the variability in this degradation even under constant cutting conditions. Therefore, monitoring the degradation of cutting tools is an important part of the process in order to replace the tool at the optimal time and thus reduce operating costs....

In manufacturing, tool wear monitoring is crucial as it directly influences production quality and operating costs. Inaccurate replacement strategies can result in increased costs and substandard parts. Various Artificial Intelligence (AI) methods have been proposed to monitor tool wear using cutting signals, but a comprehensive performance compari...

Recent technological advancements such as IoT and Big Data have granted industries extensive access to data, opening up new opportunities for integrating artificial intelligence (AI) across various applications to enhance production processes. We cite two critical areas where AI can play a key role in industry: product quality control and predictiv...

Recent technological advancements such as IoT and Big Data have granted industries extensive access to data, opening up new opportunities for integrating Artificial Intelligence (AI) across various applications to enhance production processes. We can cite two critical areas where AI can play a key role in industry such as product quality control an...

Accurate recognition of Facial Expressions of Emotions (FEE) plays a central role in our prosocial behaviors. Although this ability has been investigated among specific populations such as psychopaths, little is known among sexual offenders. This meta-analysis aimed to compare FEE accuracy means between sexual offenders (SO), non-sexual offenders (...

Optimal replacement of machining cutting tools is a major challenge in today's manufacturing industry. Due to the degradation of the tool during machining, late replacement of the tool leads to the risk of producing parts that do not meet technical specifications, while early replacement increases machine downtime and tool costs. To replace tools a...

In turning operations, the wear of cutting tools is inevitable. As workpieces produced with worn tools may fail to meet specifications, the machining industries focus on replacement policies that mitigate the risk of losses due to scrap. Several strategies, from empiric laws to more advanced statistical models, have been proposed in the literature....

The important losses in the machining industry due to improper replacement of cutting inserts induces the necessity of optimizing the maintenance policies in such contexts. However, the variety of industrial practices, end-of-life criteria, and optimization criteria does not allow a clear view on the maintenance policy performance evaluation. The g...

The optimization of the cutting tools replacement is often overlooked, despite the huge losses associated with their improper maintenance. This presentation aims at bringing up to date this particular maintenance action. Register to AMEST20 (https://www.amest2020.eng.cam.ac.uk/) or watch this presentation on YouTube: https://www.youtube.com/watch?v...

The important portion of machining costs associated with cutting inserts and scraps induces the search for better effectiveness in turning. This paper presents the results of an exploratory study on the influence of tool flank wear on roughness indicators (arithmetic average roughness, root mean square roughness and maximum height of the roughness...

WATCH the video of the formal thesis defense on YouTube: https://youtu.be/KkwOpuLheic ABSTRACT: In spite of advances in cutting tool technology, the timely replacement of cutting inserts remains a challenge to the machining industry. Their improper management is a major center of costs for machined workpieces, because the tool wear has a direct im...

Cutting tools replacement is an important industrial concern because of the costs that stem from them. In many cases, cutting inserts are replaced either too late or too early. Consequently, either workpieces are scraped or cutting inserts are wasted. That is why there is a need for on-line evaluation of cutting tool wear, hence their residual life...

A high proportion of machined goods production costs are associated with the management of cutting inserts. Early replacement leads to waste of inserts, whereas late maintenance induces scraps. The usual end-of-life criterion for cutting inserts is either based on machining duration, or on tool wear. The direct, optical evaluation of tool wear is t...

La communication non-verbale est une habilité-clef dans l’interaction humaine (Bours et al., 2018). Elle se compose, en autres, des expressions faciales émotionnelles (EFE) dont la reconnaissance joue un rôle crucial dans l’interaction avec autrui et notamment, dans nos comportements prosociaux (Cigna et al., 2015). Or, il a été mis en avant que la...

Nowadays companies are constantly looking for maximum production efficiency and profitability. To achieve this goal, maintenance actions taken aim to improve the products quality. This article proposes a literature review of the techniques used in order to optimize the maintenance and the quality control of a production tool based on measurement of...

Recognition of facial expressions of emotions (FEE) plays a crucial role in our pro-social behaviours (Cigna et al., 2015). The literature supports that sexual offenders display deficits in such behaviours (Marshall & Marshall, 2012). However, only few studies investigated the recognition of FEE among sexual offenders (Philipp-Weigmann et al., 2017...

Industrial concerns arise regarding the significant cost of cutting tools in machining process. In particular, their improper replacement policy can lead either to scraps, or to early tool replacements, which would waste fine tools. ISO 3685 provides the flank wear end-of-life criterion. Flank wear is also the nominal type of wear for longest tool...

Les entreprises actuelles recherchent en permanence une efficacité de production maximale. Pour atteindre cet objectif, les actions menées visent à réduire les coûts globaux de l’entreprise. Ainsi, des mesures sont prises pour assurer la disponibilité des équipements de production en même temps qu’une bonne qualité des produits. Cet article propose...

In machining processes, a significant cost contribution is related to the cutting tool insert. A precocious replacement leads to lesser profitability of the cutting tool while a late replacement tends to produce more scraps due to advanced wear of the cutting tool insert. To optimize the replacement times, there is a need to develop an integrated m...

An important proportion of the cost of machined mechanical elements emanates from the cost of cutting tools inserts. A large part of these costs is due to improper maintenance decisions. In this paper, we demonstrate the use of a gamma process tool wear simulation for providing tool lifetimes at several cutting speeds. We show the use of a survival...

Simulation de la dégradation des outils de coupe par un procédé gamma Utilisation et ajustement d’un modèle de Cox aux risques proportionnels Prédiction de la durée de vie d’un outil coupant en fonction de la vitesse de coupe (pour un couple outil-matériau particulier) Vérification de la prédiction face à de nouvelles simulations Analyse de la qual...

La maîtrise de l'usure des outils de coupe constitue un des défis majeurs pour réduire les coûts de production et de non-conformité des pièces réalisées en usinage. Pour y parvenir, il est nécessaire de pouvoir modéliser les mécanismes phénoménologiques d'usure intervenant lors de la coupe et de prédire la durée de vie résiduelle de l'outil. Dans c...