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RISA Model for Bending, Torsional, and Axial Vibrations of Micro- and Macro-Drills Including Actual Drill Geometry—Part I: Model Development and Numerical Solution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Part I of this work presents a combined one-dimensional/three-dimensional approach for obtaining a unified model for the dynamics of micro- and macro-drills. To increase the numerical efficiency ...
A Model for Bending, Torsional, and Axial Vibrations of Micro- and Macro-Drills Including Actual Drill Geometry—Part II: Model Validation and Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In Part II of this work, an experimental study is conducted to validate the three-dimensional (3D-ST) drill dynamics model. Modal experiments on macro- and micro-drills are performed by exciting ...
Microendmill Dynamics Including the Actual Fluted Geometry and Setup Errors—Part I: Model Development and Numerical Solution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an analytical model for the microendmill dynamics, including the setup errors, the axial force, the sectioned tool geometry, and the actual crosssection of the twisted fluted ...
Microendmill Dynamics Including the Actual Fluted Geometry and Setup Errors—Part II: Model Validation and Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a study to validate the microendmill dynamics model derived in Part I. A laser Doppler vibrometer system that is coupled with a microscope is used to measure the natural ...
A Spectral-Tchebychev Solution for Three-Dimensional Vibrations of Parallelepipeds Under Mixed Boundary Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vibration behavior of structures with parallelepiped shape—including beams, plates, and solids—are critical for a broad range of practical applications. In this paper we describe a new approach, ...
An Analytical Representation of Chip Area for Corner-Radiused Tools Under Both Depth-of-Cut and Feed Variations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The operation of corner-radiused tools under both depth-of-cut and feed variation is a situation that occurs for many processes (e.g., straight turning, contour turning, boring, and face-milling) ...
Effects of Crystallographic Anistropy on Orthogonal Micromachining of Single-Crystal Aluminum
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Anisotropy of workpiece crystals has a significant effect in micromachining since the uncut chip thickness values used in micromachining are commensurate with characteristic dimensions of crystals ...
A Rate-Sensitive Plasticity-Based Model for Machining of fcc Single-Crystals—Part II: Model Calibration and Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For a range of precision machining and micromachining operations, the crystallographic anisotropy plays a critical role in determining the machining forces. Part II of this work presents the ...
A Rate-Sensitive Plasticity-Based Model for Machining of Face-Centered Cubic Single-Crystals—Part I: Model Development
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the increased application of micromachining, including micromilling and microdrilling, the need to develop accurate models for machining at the microscale has been recognized. In particular, ...
A Stability Solution for the Axial Contour-Turning Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an investigation of the stability variations in contour turning process. An equivalent chip-area formulation has been developed, and is used to model the dynamic machining ...