Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 5001-5020 of 7723
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The Effect of Tool Flexibility on Back-Cutting in End Milled Surfaces
(The American Society of Mechanical Engineers (ASME), 1999)End milled surface texture is inhomogeneous and often exhibits complex lay patterns. An important contributing factor to these surface characteristics is the back-cutting effect. This effect causes ... -
Mid-Surfaces of Profile-based Freeforms for Mold Design
(The American Society of Mechanical Engineers (ASME), 1999)Mid-surfaces of complex thin objects are commonly used in CAD applications for the analysis of casting and injection molding. However, geometrical representation in CAD typically takes the form ... -
An Improved Algorithm for Cross-Coupling Control of Multi-Axis Machine Tools
(The American Society of Mechanical Engineers (ASME), 1999)This paper presents an improved algorithm for cross-coupling controlled systems. In contrast to the existing algorithms, which must be re-formulated for different types of curves and may be ... -
Mechanics of Saw-Tooth Chip Formation in Metal Cutting
(The American Society of Mechanical Engineers (ASME), 1999)The saw-tooth chip was the last of the major types to be identified. This occurred in 1954 during machining studies of titanium alloys which were then being considered for aerospace applications ... -
Direct Upper Bound Solution to Rectangular-to-Polygonal Extrusion Through Square Die
(The American Society of Mechanical Engineers (ASME), 1999)This paper is concerned with an attempt to find an upper bound solution for the problems of steady-state extrusion of asymmetric polygonal section bars through rough square dies. A class of ... -
The Identification of Radial Runout in Milling Operations
(The American Society of Mechanical Engineers (ASME), 1999)The authors discuss a novel approach to estimation of individual tooth runout in milling. The approach is based upon a simplified linear force model and leads to good results at high values ... -
Workspace Synthesis for Flexible Fixturing of Stampings
(The American Society of Mechanical Engineers (ASME), 1999)Fixtures are used to position and hold parts for a series of assembly operations. In automotive body assembly, these fixtures conventionally have been dedicated, therefore they must be replaced ... -
Modelling, Identification and Control of Thermal Deformation of Machine Tool Structures, Part 4: A Multi-Variable Closed-Loop Control System
(The American Society of Mechanical Engineers (ASME), 1999)A multi-variable closed-loop control system is proposed to compensate for the thermal deformation of machine tool structures. The control system recognizes the fact the relative thermal displacement ... -
Materials Modelling and Laser Inspection for the 3D Lay-up of Dry Fiber Composite Preforms
(The American Society of Mechanical Engineers (ASME), 1999)Resin Transfer Moulding (RTM) is playing an ever increasing role in the manufacturing of composite components in the aerospace industry. However, the high labor and tooling costs and long ... -
An Experimental Investigation into the Effect of Cutting Fluid Conditions on the Boring of Aluminum Alloys
(The American Society of Mechanical Engineers (ASME), 1999)Boring tests were conducted on aluminum alloys to investigate the effects of cutting fluid on machining performance. Statistically designed experiments were used to examine the role of such ... -
An Elastic Contact Model for the Prediction of Workpiece-Fixture Contact Forces in Clamping
(The American Society of Mechanical Engineers (ASME), 1999)The design and evaluation of machining fixture performance requires accurate knowledge of workpiece-fixture contact forces since they strongly impact workpiece accuracy during clamping and machining. ... -
Predict and Assure the Matchable Degree in Selective Assembly via PCI-based Tolerance
(The American Society of Mechanical Engineers (ASME), 1999)Selective assembly is a method to achieve high precision fit using low precision parts. The current practices in selective assembly lack a physical process model to guide the design and process ... -
Interval Model Based Robust Control of Weld Joint Penetration
(The American Society of Mechanical Engineers (ASME), 1999)Weld penetration sensing and control with a weld-face sensor are among the most relevant research issues in automated welding. Previous studies showed that the geometry of the weld pool contains ... -
Modelling, Identification and Control of Thermal Deformation of Machine Tool Structures, Part 3: Real-Time Estimation of Heat Sources
(The American Society of Mechanical Engineers (ASME), 1999)Compensation of thermal deformation of machine tools requires real-time estimation of the heat input to the structure in order to fully describe its thermoelastic response. Available solutions ... -
Layered-Manufacturing of Fiber-Reinforced Composites
(The American Society of Mechanical Engineers (ASME), 1999)In this paper, we present a rapid manufacturing process for the layered fabrication of polymer-based composite parts using short discontinuous fibers as reinforcements. This process uses a ... -
Machine Vision Monitoring for Automated Surface Finishing
(The American Society of Mechanical Engineers (ASME), 1999)A considerable amount of research has recently been performed on automated die and mold finishing systems. The research has tended to focus on the development of the finishing tool, the means ... -
Temperature Field Regulation in Thermal Cutting for Layered Manufacturing
(The American Society of Mechanical Engineers (ASME), 1999)A general thermal modeling and control methodology for thermal processing of layered materials for rapid prototyping technologies is established in this article. An analytical multivariable model ... -
A Novel Device for Producing Three-Dimensional Objects
(The American Society of Mechanical Engineers (ASME), 1999)This work describes a novel device for producing three-dimensional objects that has been developed using a liquid crystal display as a programmable, dynamic mask and visible light to initiate ... -
Three-Dimensional Finite Element Modelling of Forging of a Titanium Alloy Aerofoil Sectioned Blade
(The American Society of Mechanical Engineers (ASME), 1999)Analysis of the forging of aerofoil blades, particularly those for aeroengines, is a complex operation because of the complicated three-dimensional geometry and the non steady-state contact between ... -
Mechanistic Force Models for Chip Control Tools
(The American Society of Mechanical Engineers (ASME), 1999)A mechanistic modeling approach to predicting machining forces for grooved tools is developed. The models are based solely on the grooved tool geometry and the specific normal cutting energy ...