Clustering parts and machines into part families and machine cells is a major decision in the design of cellular manufacturing systems which is defined as cell formation. This paper presents a non-linear mixed integer programming model to design cellular manufacturing systems which assumes that the arrival rate of parts into cells and machine service rate are stochastic parameters and descri...

Functionally Graded Materials (FGM) parts are heterogeneous objects with material composition and microstructure that change gradually into the parts. The distinctive feature of FGM structure gives the possibility of selecting the distribution of properties to achieve the desired functions. Today, multimaterial parts manufactured with additive manufacturing processes are not functional. To move...

— The Internet of Things (IoT) has transformed many aspects of modern manufacturing, from design to production to quality control. In particular, IoT and digital manufacturing technologies have substantially accelerated product development cycles and manufacturers can now create products of a complexity and precision not heretofore possible. New threats to supply chain security have arisen from...

Modeling and performance evaluation play a major role for the design of today’s manufacturing systems. This paper adresses the modeling of manufacturing systems with Petri nets. A new method is proposed, facilitating the independent modeling of the manufacturing system’s structure and the production routes of the parts being processed. Both models use the same specialized type of Colored Petri ...

We propose an approach for the inspection of machined parts that is based on knowledge of the actual manufacturing process for the parts to be inspected. A principal benefit of this approach is that sensing can be focused on those areas of parts where violations of tolerance specifications are most likely. NC tool paths are used as a low-level unifying representation for the analysis of geometr...

Maintenance of cell efficiency in Cellular Manufacturing System is important. Once the cell is formed, new parts come naturally for processing. These parts may not be completely processed in a single manufacturing group and need different machines for processing. This paper presents a procedure for allocating new parts to machine groups using the concept of composite parts. Initially for each o...

As additive manufacturing (AM) evolves to become a common method of producing final parts, further study of this computer integrated technology is necessary. The purpose of this research is to evaluate the potential impact of additive manufacturing improvements on the configuration of spare parts supply chains. This goal has been accomplished through scenario modeling of a real-life spare parts...

The Selective Laser Sintering Process of thermoplastics (SLS) enables the manufacturing of components with complex shape in a short time period without the manufacturing of a specific mold. However, this manufacturing process is limited by the restricted range of materials. In contrast to this primary shaping process, vacuum casting allows a quick, inexpensive and highly accurate process but it...

Mass customisation is in contradiction with established manufacturing systems, which produce high quantities of identical parts. Even though products assembled according to individual customer demands are widely available in many areas, the shape of the individual parts of the assembled product is generally fixed. To enable mass customisation regarding the shape of these parts, new manufacturin...