Dynamic assessment of retrofitted NC lathe used for reshaping wheelsets
Journal Title: Proceedings in Manufacturing Systems - Year 2018, Vol 13, Issue 4
Abstract
The paper presents the requirements and achievements in a frame of a research project for the retrofitting of a lathe in order to optimize the reshaping on CNC machine tools and increase the traffic safety. It presents the main objectives that have been achieved, with the evaluation of the existing machine in the conventional form, the technical aspects regarding the wear of the used rolling surfaces, the analysis of the new solutions of the radial and longitudinal feed drives, design calculations, choice of the drive motors, CAD modeling and multibody and FEA simulation. The feed drives were designed and assembled on the machine structure along with some components removing. The machine was equipped with numerical control equipment and with surface measuring device before and after processing. Geometric precision measurements have been performed and also the assessment of the idle and cutting operation both on the old machine and on the modernized one. Analyzes of the results and comparisons of the behavior of the refabricated machine tool have been achieved.
Authors and Affiliations
Claudiu Florinel BÎȘU, George Constantin, Ionuț GHIONEA, Adrian GHIONEA, Marcel CIMPOAIE, Ioan SÎRBU
Keywords
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