Università Roma Tre

AIM OF THE COURSE. The Computer Assisted Production Course provides students in the fifth year of the master's degree with the basic elements for the use of numerical control in material subtraction processing. The course includes a first part dedicated to the deepening of machining by chip removal, with particular reference to the aspects of cutting mechanics as well as the tool sizing criteria for the most common turning, milling and drilling operations. In this context, the aspects concerning the problems of tool wear and Taylor's law will not be neglected. The Course also provides a second part dedicated to the optimization models of numerical control processes according to the criteria of maximum economy and maximum productivity. In addition, the strategies for the closed and numerical resolution of the main optimization models of numerical control work will be proposed. Finally, the first elements will be provided for the use of SW CAD / CAM in mechanical design, with specific reference to machining with numerical control machines.
DETAILED PROGRAM OF THE COURSE. Mechanics of cutting and sizing of the tool. The mechanics of the cut. Recalls on the work by material subtraction: turning, milling, drilling. The sizing of the tool in turning, milling and drilling. Tool interaction - material in chip removal machining. Tool wear and Taylor's law. Optimization of numerical control machining. Optimization of machining parameters. Maximum economy criterion. Maximum productivity criterion. Optimal choice. Sensitivity analysis. Mono-step processing. Mono-step processing with variable feed. Multi-step machining. Multi-stage and multi-stage machining. Advanced methods of optimization of numerical control machining. Numerical control of machine tools. Overview of numerical control machining systems. Architecture of a numerical control machining system. Description of the components of numerical control machining systems. Handling systems. References. Absolute and incremental movements. Control systems. Tools. Control unit. Instructions for a numerical control machining system. Program formats. Preparation of the Part Program. Manual programming. Manual programming language instruction (script). Automatic programming. Instruction to the automatic programming language (script). Design of mechanical components and preparation of the worksheet.

Principles of Computer Aided Design and Manufacturing (2nd Edition) 2nd Edition
by Farid M. Amirouche (Author)