Study of The Digital Continuity During

**Study of the digital continuity during manufacturing processes for a digital twin of manufactured parts**:

- Réf **ABG-126784**
- Stage master 2 / Ingénieur- Durée 6 mois- Salaire net mensuel 600 euros- 08/11/2024- DISP, UNIVERSITE LYON 1- Lieu de travail- Lyon Auvergne-Rhône-Alpes France- Champs scientifiques- Sciences de l’ingénieur
- Informatique
- Mots clés- Digital twin, Manufacturing system, 4.0 Industry, Metrology-
- 29/11/2024**Établissement recruteur**:
**Site web**:
The DISP (Decision and Information Systems for Production system, UR4570) laboratory brings together researchers and teacher-researchers from the University of Lyon, with dual expertise in Industrial Engineering and Business Information Systems. In response to the scientific challenges posed by changes in the socio-economic world, it conducts research into the design and deployment of decision-support methods and information systems to improve the performance, agility and resilience of goods and services production systems and global supply chains. Its dual expertise, drawing on skills in Modeling, Operations Research, Simulation, Software Engineering, Artificial Intelligence, Planning, Scheduling and Decision Support, enables it to consider these complex systems in their technical, structural, organizational and human dimensions simultaneously. Its members are spread across 4 institutions of the University of Lyon: INSA Lyon, Université Lumière Lyon 2 and Université Claude Bernard Lyon 1, as the parent institutions, and Université Jean Monnet de Saint Etienne as a partner institution.

**Description**:
**Context**:
Indeed, faced with the increasing complexity of the product/process couple in the context of the industry of the
future, human expertise is no longer sufficient to interpret the control results of complex shapes to define/correct machining parameters. Then, the abundance of control information should no longer be used only to assess the conformity of parts, but the analysis of this information should lead to a better understanding and better control of machining.

We have previously identified several blocking points in the communication between the different numerical tools used industrially, and between the different actors in the production process. The study of the need for standardization via exchange formats such as STEP-NC is a key point of the digital continuity allowing the synchronization of the digital twin.

**Suggested work program**:

- Literature exploration on the use of the digital twin in manufacturing production
- Getting started with the available resources (manufacturing/control, virtualization, Unity, HoloLens...)
- Identification of the parameters necessary to synchronize the digital twin with the real process
Identification of parameters that can be modified in real time or in rapid reaction on the process control to improve the final quality of the part produced.

**Bibliography**:
[LEGLISE, 2024] LEGLISE Timéo (2022), Étude de la continuité des chaînes de production pour un jumeau numérique de pièces manufacturées, Stage Master, DISP
[AIF, 2023] AIF (2023). Jumeau numérique levier majeur de la transformation digitale de l’industrie. Industrie du Futur.
[Bechtold, 2022] BECHTOLD, J. (2022). Développement d’un contrôleur natif step-nc de machine-outil à commande numérique interopérable et compact. PolyPublie.
[Zhao, 2011] ZHAO, Y. (2011). Dimensional metrology interoperability and standardization in manufacturing systems. Computer Standards Interfaces, 33:541-555.
[Laguionie, 2010] LAGUIONIE, R. (2010). Integration de la programmation basee entites pour la fabrication sur machines a commandes numeriques dans un contexte multiprocess. Ecole Centrale de Nantes.
[Lu, 2016] LU, Y. (2016). Current standards landscape for smart manufacturing systems. NISTIR 8107.

**Profil**:
M2 Industrial Engineering / Computer Science

with interest in : Digital twin, Manufacturing system, CAD CAM, 4.0 Industry, Metrology

**Prise de fonction**:

- 03/02/2025