Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 4661-4680 of 7723
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Error Model and Accuracy Analysis of a Six-DOF Stewart Platform
(The American Society of Mechanical Engineers (ASME), 2002)Precision machining operations necessitate highly accurate, rigid, and stable machine-tool structures. In response to this need, parallel architecture machines, based on the concepts of the Stewart ... -
Chisel Edge and Pilot Hole Effects in Drilling Composite Laminates
(The American Society of Mechanical Engineers (ASME), 2002)Previous studies have shown the severe limitations that have to be placed on machining forces when drilling composite laminates due to their propensity for delamination. Delamination, which ... -
Impact of Machining Parameters on Machine Reliability and System Productivity
(The American Society of Mechanical Engineers (ASME), 2002)This paper analyzes the impact of machining parameter selection on machining system productivity. The method involves prediction of machine tool reliability from mechanical failure based on process ... -
Analysis of Feed Errors in Tapping by Contact Stress Model
(The American Society of Mechanical Engineers (ASME), 2002)One of the most common tapping errors, mismatch of tap feed rate and the thread pitch, has a significant effect on the tapping thrust signal and the resultant thread profile. The underfeed ... -
A Combined 3D Linear and Circular Interpolation Technique for Multi-Axis CNC Machining
(The American Society of Mechanical Engineers (ASME), 2002)In multi-axis CNC machining of sculptured surfaces, a linear interpolation technique has been used to generate the command signals for positions along the straight line segments that connect ... -
Influence of Thermal Effects on Hole Quality in Dry Drilling, Part 1: A Thermal Model of Workpiece Temperatures
(The American Society of Mechanical Engineers (ASME), 2002)A finite element thermal model is devised to capture the transient temperatures in the workpiece in drilling. Experimental observations along with an inverse heat conduction procedure is utilized ... -
Influence of Thermal Effects on Hole Quality in Dry Drilling, Part 2: Thermo-Elastic Effects on Hole Quality
(The American Society of Mechanical Engineers (ASME), 2002)A finite element thermo-elastic model is devised to capture the radial errors induced in the workpiece in drilling. The temperature rise in the workpiece modeled in Part 1 of this paper is ... -
Numerical Analysis of Metal Cutting With Chamfered and Blunt Tools
(The American Society of Mechanical Engineers (ASME), 2002)In high speed machining of hard materials, tools with chamfered edge and materials resistant to diffusion wear are commonly used. In this paper, the influence of cutting edge geometry on the ... -
Influence of Friction Damping on Workpiece-Fixture System Dynamics and Machining Stability
(The American Society of Mechanical Engineers (ASME), 2002)In this paper, a dynamic model that considers the vibrations of both the workpiece and fixture elements in order to accurately predict the friction damping over a wide range of clamping forces ... -
3D FEA Modeling of Hard Turning
(The American Society of Mechanical Engineers (ASME), 2002)A practical explicit 3D finite element analysis model has been developed and implemented to analyze turning hardened AISI 52100 steels using a PCBN cutting tool. The finite element analysis ... -
Modeling and Analysis of the Effect of Fixture-Workpiece Conformability on Static Stability
(The American Society of Mechanical Engineers (ASME), 2002)This paper presents a model for analyzing the effect of global and local conformability on fixture-workpiece system static stability. Global conformability is defined as the geometric similarity ... -
Investigation of Temperature at Tool-Chip Interface in Turning Using Two-Color Pyrometer
(The American Society of Mechanical Engineers (ASME), 2002)A technique for measuring temperature at the interface between a cutting tool and a chip is developed. A two-color pyrometer with fused fiber coupler is applied to the temperature measurement ... -
Machine Tool Chatter Suppression by Multi-Level Random Spindle Speed Variation
(The American Society of Mechanical Engineers (ASME), 2002)This paper presents a new method for varying the spindle speed to suppress chatter in machining. The spindle speed is varied in a pseudo-random fashion within the bandwidth of the spindle ... -
Stability Prediction for Low Radial Immersion Milling
(The American Society of Mechanical Engineers (ASME), 2002)Traditional regenerative stability theory predicts a set of optimally stable spindle speeds at integer fractions of the natural frequency of the most flexible mode of the system. The assumptions ... -
A Methodology for Predicting the Variance of Fatigue Life Incorporating the Effects of Manufacturing Processes
(The American Society of Mechanical Engineers (ASME), 2002)It is well known that there is a large variance of fatigue life associated with the data of fatigue tests under nominally identical conditions. Understanding and controlling this variance are ... -
A Microplasticity Analysis of Micro-Cutting Force Variation in Ultra-Precision Diamond Turning
(The American Society of Mechanical Engineers (ASME), 2002)This paper describes a microplasticity model for analyzing the variation of cutting force in ultra-precision diamond turning. The model takes into account the effect of material anisotropy due ... -
Development of a Computer-Aided Manufacturing System for Profiled Edge Lamination Tooling
(The American Society of Mechanical Engineers (ASME), 2002)Profiled Edge Lamination (PEL) tooling is a promising Rapid Tooling (RT) method involving the assembly of an array of laminations whose top edges are simultaneously profiled and beveled based ... -
Optimization of Design Tolerances Through Response Surface Approximations
(The American Society of Mechanical Engineers (ASME), 2002)A methodology whereby the optimal set of design tolerances is assigned to the dimensions of a general mechanical assembly, is developed and tested. The manufacturing cost is minimized, while ... -
Nanomanufacturing and Processing—Research, Education, Infrastructure, Security, Resource
(The American Society of Mechanical Engineers (ASME), 2002)The National Science Foundation-European Community (NSF-EC) Workshop on Nanomanufacturing and Processing was held at the Caribe Hilton Hotel in San Juan, Puerto Rico from January 5-7, 2002. Some ... -
Nonlinear Influence of Effective Lead Angle in Turning Process Stability
(The American Society of Mechanical Engineers (ASME), 2002)An analytical method for stability prediction incorporating the nonlinear influence of the effective lead angle in turning is proposed and validated. It is shown that as the effective lead angle ...