Search
CSV
RISModeling and Control of Contouring Errors for Five-Axis Machine Tools—Part II: Precision Contour Controller Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The accurate tracking of tool-paths on five-axis CNC machine tools is essential in achieving high speed machining of dies, molds, and aerospace parts with sculptured surfaces. Because traditional ...
Minimum Tracking Error Control of Flexible Ball Screw Drives Using a Discrete-Time Sliding Mode Controller
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents modeling, identification, and discrete-time sliding mode control of ball screw drives with structural flexibility. The mechanical system of the drive is modeled by a two ...
A General Method for the Modeling of Spindle-Bearing Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper we outline a general method that can be used to model spindle assembly, which consists of spindle shaft, angular contact ball bearings and housing. The spindle shaft and housing ...
An Improved Time Domain Simulation for Dynamic Milling at Small Radial Immersions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an improved milling time domain model to simulate vibratory cutting conditions at very small radial widths of cut. The improved kinematics model allows simulation of very ...
Dynamic Compensation of Spindle Integrated Force Sensors With Kalman Filter
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a dynamically compensated Spindle Integrated Force Sensor (SIFS) system to measure cutting forces. Piezo-electric force sensors are integrated into the stationary spindle housing. ...
Virtual Simulation and Optimization of Milling Operations—Part I: Process Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ultimate aim of the manufacturing is to produce the first part correctly and most economically on the production floor. This paper presents computationally efficient mathematical models to ...
Virtual Simulation and Optimization of Milling Applications—Part II: Optimization and Feedrate Scheduling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ultimate goal of future manufacturing is to design, test, and manufacture parts in a virtual environment before they are sent to the shop floor. While Part I of this paper presents the ...
Dynamics and Stability of Plunge Milling Operations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Plunge milling operations are used to remove excess material rapidly in roughing operations. The cutter is fed in the direction of the spindle axis which has the highest structural rigidity. ...
Hybrid Modeling of Ball Screw Drives With Coupled Axial, Torsional, and Lateral Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It has been a common practice to assume that the torsional and axial dynamics are totally decoupled from the lateral dynamics of the screw when modeling ball screw drives. However, experiments ...
Quintic Spline Interpolation With Minimal Feed Fluctuation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a parameterization and an interpolation method for quintic splines, which result in a smooth and consistent feed rate profile. The discrepancy between the spline parameter ...