Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 5381-5400 of 7723
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The Design of a Large Single-Screw Melt Extruder Using a Quasi Two-Dimensional Conducting Screw Computer Model
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes a computer-aided design study for a large (5000 kg/hr) single-screw melt extruder processing 0.2 MFI LDPE using a quasi 2D steady-state non-Newtonian flow and heat transfer ... -
Analysis of Filament Deformation for a Freely Rotating Cup Brush
(The American Society of Mechanical Engineers (ASME), 1997)In this paper, a mechanics formulation is outlined and used for evaluating the steady-state, large deflection of a slender member subjected to displacement-dependent centrifugal load. The problem ... -
Prediction of Thermally Induced Time-Variant Machine Tool Error Maps Using a Fuzzy Artmap Neural Network
(The American Society of Mechanical Engineers (ASME), 1997)A novel approach to on-line learning and prediction of time-variant machine tool error maps is proposed. These error maps are measured using a fast calibration device called the laser ball-bar ... -
A Variational Method of Robust Fixture Configuration Design for 3-D Workpieces
(The American Society of Mechanical Engineers (ASME), 1997)Fixtures are used to locate and hold workpieces during manufacturing. Because workpiece surface errors and fixture set-up errors (called source errors) always exist, the fixtured workpiece will ... -
Dynamic Estimation of Full Penetration Using Geometry of Adjacent Weld Pools
(The American Society of Mechanical Engineers (ASME), 1997)Control of weld penetration is currently one of the most important and crucial research issues in the area of welding. The weld pool can provide accurate and instantaneous information about ... -
Refined Friction Modeling for Simple Upsetting
(The American Society of Mechanical Engineers (ASME), 1997)A refined model for friction in lubricated simple upsetting processes which takes account of the different lubrication regimes which may occur at the workpiece/tooling interface is developed. The ... -
Robust Tolerance Design With the Integer Programming Approach
(The American Society of Mechanical Engineers (ASME), 1997)The quality loss function incorporates the cost of tolerances, however, it does not consider the manufacturing cost and design constraints. In this paper, a stochastic integer programming (SIP) ... -
A Methodology to Improve Manufacturing Precision in the Presence of Workpiece Imperfections
(The American Society of Mechanical Engineers (ASME), 1997)In modern manufacturing applications of products such as LCD’s, semiconductor wafers, and thin film heads, the workpiece has to be processed in multiple steps. The quality and yield of the ... -
Scheduling Models for Setup Reduction
(The American Society of Mechanical Engineers (ASME), 1997)The reduction of setup time has a significant impact on shortening manufacturing cycle time. In this paper, characteristics of setup activities are investigated, and models for sequencing setup ... -
Feedback Interpolators for CNC Machine Tools
(The American Society of Mechanical Engineers (ASME), 1997)This paper presents interpolators that are capable of generating 2D curves in general implicit forms and 3D curves in general parametric forms. In contrast to the existing interpolators, which ... -
Generation of Periodic Trajectories for Optimal Robot Excitation
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes the parameterization of robot excitation trajectories for optimal robot identification based on finite Fourier series. The coefficients of the Fourier series are optimized for ... -
Performance of Synthetic and Mineral Soluble Oil When Turning AISI 8640 Steel
(The American Society of Mechanical Engineers (ASME), 1997)The present work shows a comparative study of the application of synthetic and semi synthetic, mineral soluble oil (at concentrations of 3 and 10 percent) as well as dry cut when turning ... -
An Enhanced Cutting Force Model for Face Milling With Variable Cutter Feed Motion and Complex Workpiece Geometry
(The American Society of Mechanical Engineers (ASME), 1997)An enhanced model for the prediction of static cutting forces in face milling is presented. The key features of the model include the ability to handle complex work-piece geometry, two-dimensional ... -
Cutting Tool Temperatures in Contour Turning: Transient Analysis and Experimental Verification
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes a model for predicting cutting tool temperatures under transient conditions. It is applicable to processes such as contour turning, in which the cutting speed, feed rate, ... -
Die Life and Workpiece Properties Under Dry Condition in High-Speed Pressworking
(The American Society of Mechanical Engineers (ASME), 1997)To explore the feasibility of “oil-free” pressworking, we investigated the effects on the life of SKD11 steel dies and the quality of phosphor bronze workpieces under lubricated and unlubricated ... -
Simulation of the Hot Ring Rolling Process by Using a Thermo-Coupled Three-Dimensional Rigid-Viscoplastic Finite Element Method
(The American Society of Mechanical Engineers (ASME), 1997)During hot metal forming, the temperature variation and plastic deformation affect each other considerably. In the present investigation, ring rolling of hot steel is simulated by using a ... -
Improvement of Machinability of Sintered Composite-type Alloyed Steel Powder
(The American Society of Mechanical Engineers (ASME), 1997)Composite-type alloyed steel powder has drawn great attention in recent years due to the rapid increase of high strength materials. A typical powder consisting of iron with nickel and molybdenum ... -
Injection Forging of Industrial Components From Thick-Walled Tubes
(The American Society of Mechanical Engineers (ASME), 1997)Traditional forging techniques are limited to the manufacture of components from solid materials; tubes may only be formed with a form of internal support to prevent the collapse of the ... -
Investigation on Cutting Temperature in Turning by a Tool-Work Thermocouple Technique
(The American Society of Mechanical Engineers (ASME), 1997)Tool-chip interface temperature is analyzed experimentally during turning of 4140 steel alloy and Inconel 718 with tungsten carbide tools using a tool-work thermocouple technique. The experimental ... -
Mechanisms of Material Removal in the Precision Production Grinding of Ceramics
(The American Society of Mechanical Engineers (ASME), 1997)Grinding of ceramics is often treated as coarse grinding dominated by brittle fracture or fine grinding, at very low removal rates, dominated by plastic deformation. Through a set of experimental ...