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Abstract: In this paper, based on an example, it shows how to create a NC program assisted by computer. It highlights the role of graphical programming, ease of interacting with the computer, easy to send commands to echelon operations yet leaving to the human programmer the freedom to intervene and impose their views of creatively. Using this freedom of action, the programmer can optimize the processing operation. It can get different processing times, applying different processing strategies. You can also change the cutting tools parameters. Comparisons can be made before the process through advanced 2D and 3D simulations. Are given opportunities to import the CAD file or drawing graphics effectively use the facilities offered by the CAD capabilities of the software. Follow the raw part defining, establishing and implementing the clamping systems. Using the database of the program can select the cutting tools or we can create others. Using specific post processors for different machine tools will be developed the NC program. Another advantage of the program is how to spread from computer to program NC machine tool, or from computer simulations which verify NC program designed. After more than five year experience and practice with KELLER CAD/CAM software are present the advantages and disadvantages. Methodology adopted to prove the efficiently of the CAD/CAM software presented was the cases analyzed with their results and one real application with the impact efficiently in industrial area. The ease with which the programmer is able to transmit information, to obtain a correct NC program has led to the successful implementation of this software in our teaching process.
Keywords: CNC, manufacturing, training center
I. .INTRODUCTION
The part programming assisted by computer what will be machined on CNC machine tools requires multidisciplinary knowledge's. The complexity of NC program elaboration in the classical method, who consist in translation the technological information's in alphanumeric codes, makes the young people or those who come first time in contact with this activity, to have difficulties to learn to program the CNC machines tools.
The paper presents an alternative at the classical programming mode, called: graphical programming. By this method, who was implement in Keller CAD / CAM software, are use graphical icons to guide the user in the most direct and simple way.