CAD-BASED SIMULATION AND SURFACE TOPOMORPHY PREDICTION IN BALL-END MILLING
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL AND AUTOMATION ENGINEERING
Author(s): ARISTOMENIS ANTONIADIS , ARISTOMENIS ANTONIADIS , CHARA EFSTATHIOU , DIMITRIOS VAKONDIOS
Abstract: Optimization of ball end milling processes has been an area of great interest, on the grounds that such processes are extensively used for precision and high-efficiency machining of freeform and complex surfaces. The selection of optimal cutting conditions, involved in such processes, can be accomplished by utilizing models that simulate the kinematics of the milling process, therefore allow the analytical prediction of the produced surface topomorphy and quality. The present study introduces a model developed for the simulation of milling processes, integrated in a commercial CAD software. Furthermore, several ball-end milling of Al7075-T6 experiments were carried out under various cutting conditions, so as to verify the completeness and accuracy of the above mentioned model, through the comparison of the predicted and the machined surface. According to the validation outcomes, the developed model demonstrates high computational efficiency.
- Publication Date: 08-Jun-2014
- DOI: 10.15224/978-1-63248-022-4-47
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OPTIMAL CUTTING CONDITIONS IN BALL-END MILLING OF COMPLEX SURFACES TAKING INTO ACCOUNT THE DESIRED SURFACE ROUGHNESS
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL AND AUTOMATION ENGINEERING
Author(s): ALEXANDRA CHATZIKOKOLAKI , ANASTASIA KATSAMAKI , CHARA EFSTATHIOU
Abstract: Ball-end milling is widely used as a surface finishing process. The selection of the proper cutting conditions, that is the spindle speed as well as the feed rate, is crucial for the optimization of the process. This selection is made according to the cutting speed, which is specified by the cutting tool and workpiece materials. In the case of ball-end milling of complex surfaces, the cutting speed varies depending on the changing effective diameter at the point of contact between the cutting tool and the workpiece. Therefore the cutting speed does not remain stable during the process, which directly influences the quality of the finished surface. One way to overcome this problem would be to continuously change the rotational speed of the cutting tool according to the variable effective diameter so as to keep the cutting speed constant, yet this solution is not technically feasible. In the present study, an experimental method for the specification of the optimum cutting conditions bas
- Publication Date: 08-Jun-2014
- DOI: 10.15224/978-1-63248-022-4-48
- Views: 0
- Downloads: 0