A Comparative Study of CNC Part Programming Addressing Energy Consumption and Productivity

Abstract This paper reports on a comparative study realized to contrast between the part code generated by two different CAM systems and one part program generated by the authors. This comparison addresses in particular tool path, but also includes number of lines, cycle time and energy consumption. The comparison is carried out through a case study: a mechanical component was designed so as to produce a number of CNC part programs generated with two different CAM systems; one more program was directly programmed by the authors in the machine tool's controller. Different sample parts were produced using the same machine tool, tooling and process parameters; and measurements of energy consumption and cycle time were gathered. The results show differences between the tool paths generated by each approach and are used by the authors to further define strategies to produce trajectories that could reduce cycle time and energy consumption.

[1]  C. Aghanajafi,et al.  Sifting Through the Optimal Strategies of Time-Based Tools Path Machining in Software CAD-CAM , 2013 .

[2]  David Dornfeld,et al.  Energy Consumption Characterization and Reduction Strategies for Milling Machine Tool Use , 2011 .

[3]  Joost Duflou,et al.  Optimization of energy consumption and surface quality in finish turning , 2012 .

[4]  G. Kannan,et al.  Multi-criteria decision making for the selection of CAD/CAM system , 2008 .

[5]  Stefania Pellegrinelli,et al.  Energy Driven Process Planning and Machine Tool Dynamic Behavior Assessment , 2013 .

[6]  R. Marin,et al.  Extensión del estándar ISO 10303 AP-238 para la automatización del acceso a datos de procesos CNC , 2009 .

[7]  Johanna Senatore,et al.  Correlation between machining direction, cutter geometry and step-over distance in 3-axis milling: Application to milling by zones , 2012, Comput. Aided Des..

[8]  Sami Kara,et al.  An empirical model for predicting energy consumption of manufacturing processes: a case of turning process , 2011 .

[9]  Jozef Zajac,et al.  CAM Software Products for Creation of Programs for CNC Machining , 2012 .

[10]  Aitzol Lamikiz,et al.  Toolpath selection based on the minimum deflection cutting forces in the programming of complex surfaces milling , 2007 .

[11]  Behrooz Arezoo,et al.  Dimensional and geometrical errors of three-axis CNC milling machines in a virtual machining system , 2013, Comput. Aided Des..

[12]  David Dornfeld,et al.  Efficient Tool Paths and Part Orientation for Face Milling , 2004 .

[13]  Andrew Y. C. Nee,et al.  Advanced Design and Manufacturing Based on STEP , 2009 .

[14]  Timothy G. Gutowski,et al.  An Environmental Analysis of Machining , 2004 .