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Design of Two-Axial Actuator for Controlled Vibration Damper for Large Rams
(MDPI AG, 2021)
Machine tool rams are important constructional elements found on vertical lathes as well as on many other machines. In most cases, a machine tool ram constitutes an assembly with significant dynamic compliance that affects ...
PASSIVE TORQUE SIMULATION OF SMALL ANGULAR CONTACT BEARING AT HIGH SPEED
(MM Publishing, 2017)
Description of common ball bearing torque models was presented and adopted to the complex thermo-mechanical model of the high speed spindle. Ball bearing passive torque was measured on the own high-speed spindle design. ...
Hlavní trendy EMO Hannover 2017 očima výzkumníků
(MM Publishing, 2017)
Hannoverský veletrh EMO je právem považován za výkladní skříň toho nejlepšího, co inovační týmy světových leaderů i jejich následovníků navrhli a v prototypech či již sériově nabízejí. Sektor výrobních strojů bývá na špici ...
Modelling and simulation of controlled depth abrasive water jet machining (AWJM) for roughing passes of free-form surfaces
(Springer, 2021)
Controlled depth abrasive waterjet machining (AWJM) is an unconventional and promising process for materials introducing challenges in conventional machining for high value manufacturing (HVM) industries such as aerospace ...
Chatter suppression in finish turning of thin-walled cylinder: model of tool workpiece interaction and effect of spindle speed variation
(Elsevier B.V., 2018)
Finishing operation of a thin-walled cylindrical workpiece may suffer from regenerative vibration due to high compliance of the workpiece and tool-workpiece interaction on a tool nose. In this case the machining stability ...
Machining of thin blade using vibration prediction and continuous spindle speed control
(MM Science Journal, 2019)
The paper focuses on the issue of controlling the cutting conditions in finishing machining of compliant workpieces, such as typically thin blades, in order to eliminate undesirable vibration and achieve high quality ...
Influence of bearing kinematics hypotheses on ball bearing heat generation
(Elsevier B.V., 2018)
Spindle dynamics is a key issue in machining. Thermo-mechanical models of spindle need to be developed to understand and predict the complex behavior of spindles at high speed. Accurate bearing stiffness model is required, ...
Operational method for identification of specific cutting force during milling
(MM Science Journal, 2019)
Specific cutting force is a key parameter that is important for estimating cutting forces that occur during machining. This information is important for various applications. The most important application is estimation ...
INFLUENCE OF LINEAR FEED DRIVE CONTROLLER SETTING IN CNC TURNING LATHE ON THE STABILITY OF MACHINING
(Ed. Inst. of the Wroclaw Board of Scientific Technical Societies Federation NOT, 2019)
The paper deals with the influence of linear feed drive controller setting of a CNC turning lathe on the stability of machining. A coupled simulation model of feed drive control and ball screw drive mechanics with a ...
The Influence of Servo Drive Control on the NC Vertical Milling Machine Dynamic Compliance
(MDPI AG, 2020)
A model Numerical Control (NC) machine tool dynamic compliance is analyzed, including the influence of its mechanical structure and position control feed drive algorithms. The dynamic model of the machine tool is divided ...