Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 5361-5380 of 7723
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Thermal Stresses in a Circular Cylinder with Temperature Dependent Properties
(The American Society of Mechanical Engineers (ASME), 1997)The thermal stresses in a long circular cylinder are analyzed by two approximate methods. An interpolation formula is then used to develop a semi-empirical solution for thermal stresses which ... -
5-Axis Freeform Surface Milling Using Piecewise Ruled Surface Approximation
(The American Society of Mechanical Engineers (ASME), 1997)This paper presents a 5-axis side milling scheme for freeform surfaces based on automatic piecewise ruled surface approximation. With this scheme, resulting surface finish is accurate and pleasing, ... -
A Probabilistic View of Problems in Form Error Estimation
(The American Society of Mechanical Engineers (ASME), 1997)Form error estimation techniques based on discrete point measurements can lead to significant errors in form tolerance evaluation. By modeling surface profiles as random variables, we show how ... -
Use of a Quality Loss Function to Select Statistical Tolerances
(The American Society of Mechanical Engineers (ASME), 1997)In this paper, we present a method for the selection of processes to manufacture various parts of an assembly by establishing a compromise between product quality and part manufacturing cost. ... -
Applications of D-H Notation in Machining and On-Line Measurement of Roller-Gear Cams on 5-Axis Machine Tools
(The American Society of Mechanical Engineers (ASME), 1997)A kinematic model is presented to aid in the design of cam-profiles and determine the NC data equations using Denavit-Hartenberg (D-H) notation to produce and to measure the dimension accuracy ... -
Elastic-Plastic Finite Element Analysis of Deep Drawing Processes by Membrane and Shell Elements
(The American Society of Mechanical Engineers (ASME), 1997)Both cylindrical cup drawing and square cup drawing are analyzed using both membrane analysis and shell analysis by the elastic-plastic finite element method. An incremental formulation incorporating ... -
Thermal Modeling of Deposit Solidification in Uniform Droplet Spray Forming
(The American Society of Mechanical Engineers (ASME), 1997)In spray forming, the deposit thermal state is a key parameter which influences the microstructural evolution upon and after droplet impact onto the deposit. The uniform droplet spray (UDS) ... -
An Air Layer Modeling Approach for Air and Air/Vacuum Bearings
(The American Society of Mechanical Engineers (ASME), 1997)Air layer supported bearing pads, or “air bearings” as they are commonly called, are popular because of their high load capacity and low in-plane coefficient of friction, making them well ... -
Error Compensation for Sculptured Surface Productions by the Application of Control-Surface Strategy Using Predicted Machining Errors
(The American Society of Mechanical Engineers (ASME), 1997)In this paper, the principle and effectiveness of the control-surface strategy in machining-error compensation for end milling processes are studied. Using this strategy, two new approaches, namely ... -
Material-flow Considerations for the Design of Injection Forging
(The American Society of Mechanical Engineers (ASME), 1997)During injection forging, the ratio of axial and radial deformation of each section of billet in the diecavity prescribes the pattern of material-flow, thereby determining the scope of the ... -
Simultaneous Consideration of Process Development and Die Design for Cold Forming a Fuel Injector Nozzle
(The American Society of Mechanical Engineers (ASME), 1997)Higher strength and tighter dimensional tolerance is desired for the injector nozzles to attain high injection pressures for lower NOx and particulate emissions. Cold forming is an alternate ... -
Variation Simulation for Deformable Sheet Metal Assemblies Using Finite Element Methods
(The American Society of Mechanical Engineers (ASME), 1997)Traditional variation analysis methods, such as Root Sum Square method and Monte Carlo simulation, are not applicable to sheet metal assemblies because of possible part deformation during the ... -
An Investigation of Variable Spindle Speed Face Milling for Tool-Work Structures With Complex Dynamics, Part 1: Simulation Results
(The American Society of Mechanical Engineers (ASME), 1997)A mechanistic dynamic model is used to simulate a face milling process during constant and variable speed machining. The model can be used to predict the optimum speed trajectory that can ... -
Three-Dimensional Finite Element Analysis of Sheet-Metal Bending With Complex Die Geometry
(The American Society of Mechanical Engineers (ASME), 1997)The purpose of this research was to find manufacturing processing conditions that would prevent the occurrence of fractures in a sheet-metal bending product. The finite element code ABAQUS was ... -
Flow Instability in the Orthogonal Machining of CP Titanium
(The American Society of Mechanical Engineers (ASME), 1997)An experimental and analytical investigation of flow instability and shear localization in the orthogonal machining of grade 2 commercially pure titanium was made. A criterion for thermo-plastic ... -
Analysis of Front End Bending in Plate Rolling by The Finite Element Method
(The American Society of Mechanical Engineers (ASME), 1997)This paper deals with the problem of the front end bending arising in plate rolling. The problem, which is caused by unbalanced rolling, is investigated by the finite element simulation ... -
An Investigation of Variable Spindle Speed Face Milling for Tool-Work Structures With Complex Dynamics, Part 2: Physical Explanation
(The American Society of Mechanical Engineers (ASME), 1997)Part 2 of this paper focuses on the explanation, both on theoretical grounds and through model simulations, of why the technique of variable spindle speed machining is an effective tool for ... -
Experimental and Computational Study of the Quenching of Carbon Steel
(The American Society of Mechanical Engineers (ASME), 1997)An investigation of the quenching of 1080 carbon steel cylinders has been carried out to determine the validity of a quenching process model for carbon steels. The process model included a ... -
Far-Field Initial Response of Acoustic Emission From Cracking in a Weldment
(The American Society of Mechanical Engineers (ASME), 1997)An analytical expression is developed for the relationship between far-field acoustic emission (AE) signal and the propagation of a finite plane crack due to a nonuniform residual stress in a ... -
Analysis of Residual Stresses and Metallurgical Phase Changes in Centrifugally Cast Bi-Metal Grinding Rolls
(The American Society of Mechanical Engineers (ASME), 1997)A mathematical model was developed for computing the metallurgical phase transformations and residual stresses in centrifugal casting of bi-metal grinding rolls used for coal pulverizing. The model ...