Ionuţ Gabriel GHIONEA, Adrian GHIONEA, Nicolae PREDINCEA


Abstract: Modern approaches on research projects in the field of lathes’ remanufacturing involve various simulation stages, like FEA and CAM, in order to obtain results and solutions with different aspects and data important to consider. These simulations may confirm data obtained through measurement, but also extrapolate values that can’t be measured directly on the machine-tool technological system. Usually, a mathematical and simulated models, with a low error percent, are the main key for the remanufacturing team. The newest trend in manufacturing technologies, the acclaimed Industry 4.0, relies on new design concepts and methods, data acquisition and exchange between systems, processing, visualization and automation. Modern simulation methods, system integration between simulated and measured data, augmented reality, etc., are important parts of the actual factories. More and more machine-tools without CNC capabilities are remanufactured in this new vision of Industry 4.0. This paper presents some phases in establishing the turning process parameters in profiling and re-profiling of the trains wheelsets. There are used specific instruments (a mathematical approach and 3D models for FEA simulation) in order to determine which system (tool holder – insert – process parameters) are better to be used on the remanufactured lathe.
Key words: tread profile, wheelset, re-profilation, cutting parameters, FEA analysis.

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