Dynamical problems in interrupted high precision hard turning

Bachrathy, D [Bachrathy, Dániel (mechanika), szerző] Műszaki Mechanikai Tanszék (BME / GPK); Mészáros, I [Mészáros, Imre (Gépgyártástechnol...), szerző] Gyártástudomány és -technológia Tanszék (BME / GPK)

Angol nyelvű Tudományos Konferenciaközlemény (Könyvrészlet)
    High quality standards must be reached during the high precision hard turning process. In case of the interrupted turning the instantaneous force fluctuation causes a vibration which causes poor surface quality. A dynamical model of the hard turning process was built to describe this phenomenon and to analyse the effects of the machining process parameters. Surface pattern and the surface error were also calculated. Optimal cutting velocities were found analytically, where the surface error is minimal. Cutting tests were carried out to validate the mechanical model. Uddeholm Rigor tool steel material was selected for the material of the specimens. The material was hardened in its whole section. Experiments were carried out on a Slantbed-Mikroturn 50 CNC lathe with CCMW09T304S-L0-B CBN050C SECO insert. During the measurements the vibrations were detected by accelerometers and analyzed by Pulse software. Using the measured signal we created the surface profile of the machined workpiece. The surface pattern was the same as the predicted. The measured surface roughness was in a good agreement with the analytical ones which validated our dynamical model.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2021-02-26 19:31