Università Roma Tre

The course focuses on the study of production technologies for chip removal and CAD/CAE/CAM (Computer-Aided Design/Computer-Aided Engineering/Computer-Aided Manufacturing) for product design and planning and programming of the product production and processing process. The mechanics of cutting and sizing of the tool will be examined. The mechanics of cutting. Recalls on the processing by material subtraction: turning, milling, drilling. Tool sizing in turning, milling and drilling. Tool interaction - material in machining by chip removal. Tool wear and Taylor’s law. Numerically controlled machining optimization. Optimization of machining parameters. Maximum economy criterion. Maximum productivity criterion. Optimal choice. Sensitivity analysis. Single-axis machining. Single-axis machining with variable feed. Multi-axis machining. Multi-axis and multi-stage machining. Advanced methods of numerical control optimization. Numerical control of machine tools. The generality of numerical control machining systems. The architecture of a numerical control machining system. Description of the components of CNC machining systems. Handling systems. References. Absolute and incremental movements. Control systems. Tools. Control unit. Design of mechanical components and preparation of the worksheet. The methodologies and techniques of three-dimensional CAD modeling of the product and the analysis and graphic representation of the functional and aesthetic requirements will be analyzed, the data structures that define the product and the production process and the issues related to the choice and application of advanced integrated IT tools to support product design activities and planning and programming of the process of production and automatic machining by CNC machine tools. The integrated CAD modeling and CAE techniques and tools for simulation and verification of the functional behavior of the product and the CAM tools for planning and programming the machining concerning the design issues will be analyzed collaborative and integration of processes and systems, systematically using application case studies of interest to the engineering industry and CAD/CAE/CAM systems available on the market. There will be guided exercises on the use of a commercial CAD/CAE/CAM system for example and the execution, using this system, of a year’s work related to the CAD design of a mechanical component and the automatic CAM programming of its machining with CNC machine tool; the execution and delivery of the work of the year is a prerequisite for taking the exam.

KALPAKJIAN, Serope; SCHMID, Steven R. Manufacturing Engineering. Technology, Addison-Wesley, Reading, MA (1989), 2009.
SANTOCHI, Marco; GIUSTI, Francesco. Tecnologia meccanica e studi di fabbricazione. Casa Editrice Ambrosiana, 2000.