THE INTERNATIONAL ACADEMY FOR PRODUCTION ENGINEERING

CIRP Annals Online sorted by Year and Volume

CIRP ANNALS 2024

GO TO STC: A C Dn E F G M O P S Cross-STC

 STC A 

Implementing Circular Economy Activities in Manufacturing for Environmental Sustainability
Tomohiko Sakao (2), Nancy Bocken, Nabil Nasr, Yasushi Umeda (1)  
STC A,  73/2/2024,  P.8
Keywords: Lifecycle, Service, Business model
Abstract : Manufacturers around the globe are expected—with growing urgency—to contribute to the implementation of a circular economy (CE) to enhance environmental sustainability. However, to put circularity into practice, companies need to be better guided. Responding to their need, this paper 1) documents research-based insights for CE implementation; 2) clarifies key CE concepts; 3) highlights learning of research and innovation for CE in various regions; 4) outlines guiding principles for CE implementation; and 5) proposes issues for future research to various communities with a cross-disciplinary approach in mind. The adopted method is a literature review supplemented with stakeholder interviews.

 STC C 

Sustainable machining: Recent Technological advances
A. Shokrani (2), P.J. Arrazola (1), D. Biermann (1), P. Mativenga (2), I.S. Jawahir (1)  
STC C,  73/2/2024,  P.9
Keywords: Machining, Sustainable machining, Cutting tool
Abstract : Multiple international organizations and many governments around the world have declared climate emergency. There is a pressing need to minimize the environmental impacts of human activities including manufacturing processes. Machining by mechanical cutting is a fundamental manufacturing process and minimizing and eliminating its environmental impacts is vital. In this keynote paper, sustainability in the context of machining is identified. The resources used in machining have been categorized and the social and environmental impacts and potential methods to reduce them have been identified. The findings are critically discussed and the gaps and challenges for future research direction are highlighted.

 STC Cross-STC 

Efficiently preserving material resources in manufacturing: Industrial symbiosis revisited
J.R. Duflou (1) , K. Wegener (1), A.E. Tekkaya (1) , M. Hauschild (1), F. Bleicher (1), J. Yan (2), B. Hendrick  
STC Cross-STC,  73/2/2024,  P.6
Keywords: Sustainable Development, Recycling, Material Efficiency
Abstract : The fraction of materials that does not reach the target product in discrete manufacturing is very significant. Directing secondary material streams towards other manufacturing processes, possibly after intermediate pre-processing, offers opportunities for more energy and resource efficient recycling routes. This paper contributes to the exploration of such symbiotic recycling strategies by identifying relevant process mechanisms and by systematically scanning the manufacturing domain for relevant process combinations. Emerging and proven symbiotic combinations within the discrete manufacturing domain are reviewed, with proper attention for the quantification of the thus avoided environmental impact. A series of representative case studies illustrates the feasibility of applying industrial symbiosis principles in a discrete manufacturing context, with uniform data sheets providing detailed information on relevant research achievements.
Artificial Intelligence in manufacturing: state of the art, perspectives, and future directions
Robert X. Gao (1), Jörg Krüger (1), Marion Merklein (1), Hans-Christian Möhring (2), József Váncza (1)  
STC Cross-STC,  73/2/2024,  P.7
Keywords: : Artificial Intelligence, Smart Manufacturing, Machine Learning
Abstract : Inspired by the natural intelligence of humans and bio-evolution, Artificial Intelligence (AI) has seen accelerated growth since the beginning of the 21st century. Successful AI applications have been broadly reported, with Industry 4.0 providing a thematic platform for AI-related research and development in manufacturing. This paper highlights applications of AI in manufacturing, ranging from production system design and planning to process modeling, optimization, quality assurance, maintenance, automated assembly and disassembly. In addition, the paper presents an overview of representative manufacturing problems and matching AI solutions, and a perspective of future research to leverage AI towards the realization of smart manufacturing.

 STC Dn 

Integration of datascience with product design towards data-driven design
Ang Liu (2), Stephen Lu (1), Fei Tao (2), Nabil Anwer (1)  
STC Dn,  73/2/2024,  P.10
Keywords: Product design, Data science, Data-driven design
Abstract : This paper investigates the integration of data science and product design towards data-driven design (D3). Data science has potential to facilitate design decision-making through insight extraction, predictive analytics, and automatic decisions. Various D3 applications are reviewed in three dimensions: the design dimension about design operations, the data dimension about design-specific/design-relevant data and SOME data-related challenges, and the method dimension about design methods and data science methods. Some social and ethical considerations in D3 applications are explored. This paper also opens some discussions on potential avenues and complexities for future research in this dynamic field.

 STC E 

Dynamic Beam Shaping - Improving Laser Materials Processing via Feature Synchronous Energy Coupling
M. Schmidt (1), K. Cvecek, J. Duflou (1), F. Vollertsen (1), C.B. Arnold, M.J. Matthews   
STC E,  73/2/2024,  P.11
Keywords: Adaptive control, Laser, Beam shaping
Abstract : Today, tailored laser beams are rarely used and thus an opportunity to optimize existing or introduce new processes is missed. New methods of dynamic beam shaping have the potential to change that in future. This keynote paper deals with methods allowing a transient energy input into the workpiece at such time scales that the underlying interaction processes are guided towards the desired result. It shows principles, categorizes necessary system technology, and gives application examples to familiarize the reader with the top

 STC F 

Artificial intelligence in metal forming
Jian Cao (1), Markus Bambach (2), Marion Merklein (1), Mojtaba Mozaffar, Tianju Xue  
STC F,  73/2/2024,  P.1
Keywords: Artificial intelligence, Machine learning, Material characterization, Process design, Process control
Abstract : Forming processes are known for their intricacies in prediction and control due to the complex loading conditions and material flow. This paper will first introduce the AI algorithms used or having potential to be used in forming, and then investigate the state-of-the-art advances of AI-based technologies in forming processes with four main pillars of process simulation, process design and optimization, in-situ process control, and qualification and certification of forming processes and formed products. Future directions of AI in forming for both academic research and industrial applications will be proposed to leverage digitalization and data science to explore new solutions in forming processes.

 STC G 

Advances in modeling of fixed-abrasive processes
Peter Krajnik (2), Konrad Wegener (1), Thomas Bergs (2), Albert J. Shih (1)  
STC G,  73/2/2024,  P.2
Keywords: Grinding, Modeling, Simulation
Abstract : Research over the last 70 years has led to a better understanding of fixed-abrasive machining processes. This knowledge is often expressed in the form of physical and empirical models that cover forces, power, specific energy, wheel/workpiece topography, wear, thermal aspects, cooling, dressing, and more. This paper first examines the established models that continue to constitute the fundamental knowledge base in fixed-abrasive technology. Special attention is given to geometry, kinematics, and thermomechanical modeling. Recent advances in process monitoring and big data analytics provide new opportunities to further strengthen the state of the art in modeling through data-driven approaches. In addition, examples on how models – implemented in simulation software – can be used to predict and optimize industrial operations have been demonstrated. This is illustrated by several use cases from real production, including bearing, creep-feed form, gear, camshaft, crankshaft, and centerless grinding, along with diamond-wheel truing.

 STC M 

Hybrid metal additive/subtractive machine tools and applications
Scott Smith (1), Tony Schmitz (2), Thomas Feldhausen, Michael Sealy (2)  
STC M,  73/2/2024,  P.3
Keywords: Hybrid, Additive Manufacturing, Machine tool
Abstract : Additive manufacturing creates parts by depositing a preform, typically layer by layer. Subtractive manufacturing involves removing material from a preform to create parts. Hybrid machine tools combine both additive and subtractive processes in the same workspace. They can be used to create parts that meet functional tolerance and surface finish requirements, or to create features that are difficult to produce using additive or subtractive processes alone. This paper describes hybrid metal additive/subtractive machine tools. It covers design considerations, sensors and controls, process management, programming and software, and the impact on the design space. It also identifies future research challenges.

 STC P 

Integrated metrology for advanced manufacturing
Andreas Archenti (2), Wei Gao (1), Alkan Donmez (1), Enrico Savio (1), Naruhiro Irino (2)  
STC P,  73/2/2024,  P.4
Keywords: Metrology, Integration, Advanced manufacturing
Abstract : The transition from conventional standalone metrology to integrated metrology has been accelerating in advanced manufacturing over the past decade. This keynote paper defines the concept of integrated metrology, which extends beyond parts inspection and encompasses processes and manufacturing equipment to enhance efficiency and productivity. The paper presents the characteristics, benefits, constraints, and future possibilities of integrated metrology for parts, processes, and equipment. It also includes a classification of the physical quantities of measurands, the corresponding measuring instruments, data and communication methods, uncertainty, and traceability. The paper also discusses future challenges and emerging trends.

 STC S 

Surface conditioning in cutting and abrasive processes
Volker Schulze (2), Jan Aurich (1), I.S. Jawahir (1), Bernhard Karpuschewski (1), Jiwang Yan (2)  
STC S,  73/2/2024,  P.5
Keywords: Cutting, Sensor Monitoring, Control, Surface Integrity
Abstract : Cutting and abrasive processes affect the surface layer state of the components treated. This determines their performance in service. An adjustment of the surface layer properties would allow for enhanced performance. This paper introduces the influences of named processes on the surface layer state and their systematics. Models and sensor concepts for surface conditioning are described and combined to soft sensors which are the basis for active control within the processes. A validation study and actual applications of the conditioning concept are shown, allowing for further technological and scientific understanding of surface conditioning and its contribution to material and energy efficiency.