Journal of Manufacturing Science and Engineering: Recent submissions

Now showing items 5281-5300 of 7723

    • Modelling, Identification and Control of Thermal Deformation of Machine Tool Structures, Part 2: Generalized Transfer Functions 

      S. Fraser; M. H. Attia; M. O. M. Osman (The American Society of Mechanical Engineers (ASME), 1998)
      With the ever increasing demand for higher machining accuracy at lower cost, thermal deformation of machine tool structures has to be minimized at the design stage, and compensated for during ...

    • Intelligent Vision-Based Part-Feeding on Dynamic Pursuit of Moving Objects 

      Kok-Meng Lee; Yifei Qian (The American Society of Mechanical Engineers (ASME), 1998)
      The paper addresses the problem of picking up moving objects from a vibratory feeder with robotic hand-eye coordination. Since the dynamics of moving targets on the vibratory feeder are highly ...

    • Shape Deposition Manufacturing With Microcasting: Processing, Thermal and Mechanical Issues 

      C. H. Amon; L. E. Weiss; R. Merz; F. B. Prinz; J. L. Beuth (The American Society of Mechanical Engineers (ASME), 1998)
      Shape deposition manufacturing (SDM) is a solid freeform fabrication (SFF) methodology for automatically building up material layers to form three-dimensional, complex-shaped, multi-material structures. ...

    • The Kinematic Synthesis of Toggle Clamps 

      Pei-Lum Tso (The American Society of Mechanical Engineers (ASME), 1998)
      The toggle clamp is one of the most common forms of clamps used throughout industry. They are commercially available in different types and models satisfying almost all ordinary fixture clamping ...

    • A Tool Deflection Compensation System for End Milling Accuracy Improvement 

      M. Y. Yang; J. G. Choi (The American Society of Mechanical Engineers (ASME), 1998)
      In an effort to reduce machining surface errors due to tool deflection in the end milling process, methods regulating cutting forces have been implemented with online feed rate controls. Such ...

    • Milling Process Simulation—A Generic Solid Modeller Based Paradigm 

      H. El Mounayri; A. D. Spence; M. A. Elbestawi (The American Society of Mechanical Engineers (ASME), 1998)
      A generic solid modeller based milling process simulation system is developed for 3-axis milling of complex parts. Parts are described using a boundary representation solid model, and cutting ...

    • Analysis of Resin Transfer Molding With High Permeability Layers 

      M. J. Tari; J. P. Imbert; M. Y. Lin; A. S. Lavine; H. T. Hahn (The American Society of Mechanical Engineers (ASME), 1998)
      In resin transfer molding (RTM) a high permeability layer (HPL) is placed on top of the fiber mat lay-up to reduce mold filling time and increase the ultimate distance resin can be drawn ...

    • Improving Laser Cutting Quality for Two-Dimensional Contoured Paths 

      P. Di Pietro; Y. Lawrence Yao (The American Society of Mechanical Engineers (ASME), 1998)
      Quality improvements in laser cutting of mild steel have been achieved by a newly developed model-based optimization strategy and its application to one-dimensional cut has been reported early. ...

    • Noncontact Ultrasonic Sensing for Seam Tracking in Arc Welding Processes 

      S. B. Zhang; R. Kovacevic; Y. M. Zhang (The American Society of Mechanical Engineers (ASME), 1998)
      A novel seam tracking technology based on high frequency ultrasound is developed in order to achieve high accuracy in weld seam identification. The transmission efficiency of the ultrasound is ...

    • High-Speed Scanning of Piezo-Probes for Nano-fabrication 

      D. Croft; D. McAllister; S. Devasia (The American Society of Mechanical Engineers (ASME), 1998)
      Low scanning speed of piezo-probes has been a fundamental limitation of scanning probe based nano-fabrication techniques. Typical scan-rates achieved are limited, by structural vibrations of the ...

    • A Mechanistic Model to Predict the Cutting Force System for Arbitrary Drill Point Geometry 

      V. Chandrasekharan; S. G. Kapoor; R. E. DeVor (The American Society of Mechanical Engineers (ASME), 1998)
      A mechanistic model is developed to predict the forces for arbitrary drill point geometry. The cutting lips are divided into elements and the elemental forces are determined from a fundamental ...

    • An Analytical and Experimental Study of Cleaning With Moving Waterjets 

      P. Meng; E. S. Geskin; M. C. Leu; F. Li; L. Tismeneskiy (The American Society of Mechanical Engineers (ASME), 1998)
      A mathematical model of cleaning with moving waterjet is established by considering the structure of waterjet and applying Springer’s semi-empirical model on material erosion due to impact of ...

    • An Investigation of the Cutting Process for Chip Breaking Monitoring in Turning of Steels 

      W. Grzesik; P. Bernat (The American Society of Mechanical Engineers (ASME), 1998)
      This paper presents some results of an experimental study on chip breaking monitoring when turning steels with chip forming inserts. In the first part of this study the recognition of chip ...

    • Mathematical Modeling and Experimental Verification of Stationary Waterjet Cleaning Process 

      M. C. Leu; P. Meng; E. S. Geskin; L. Tismeneskiy (The American Society of Mechanical Engineers (ASME), 1998)
      The use of stationary waterjet for the removal of coating material from the substrate is investigated analytically and experimentally. In the analysis, the cleaning width as a function of ...

    • A Solidification Front Monitor for Metal Casting 

      M. M. Hytros; J.-H. Chun; R. C. Lanza; N. Saka (The American Society of Mechanical Engineers (ASME), 1998)
      A feasibility study was performed to assess computed tomography (CT) as a method of detecting the position of the solidification front during metal casting. Since the liquid and solid phases ...

    • Modelling the Natural Resting Aspect of Small Regular Shaped Parts 

      P. S. K. Chua; M. L. Tay (The American Society of Mechanical Engineers (ASME), 1998)
      This paper presents a mathematical model for predicting the natural resting aspect of parts of regular shapes but of different sizes based on stability considerations. The objective of this ...

    • A Robust Pretravel Model for Touch Trigger Probes in Coordinate Metrology 

      Y. Shen; M. E. Springer (The American Society of Mechanical Engineers (ASME), 1998)
      This paper describes a pretravel model for vertically-oriented touch trigger probes with straight styli widely used on coordinate measuring machines (CMMs). Advances in machine accuracy and tighter ...

    • High Performance Milling Torque Sensor 

      D. A. Smith; S. Smith; J. Tlusty (The American Society of Mechanical Engineers (ASME), 1998)
      Machine tool supervision and control algorithms require reliable and effective sensor signals to operate properly. In effort to satisfy this need, a high stiffness, wide bandwidth torque sensor ...

    • Manufactured Part Modeling for Characterization of Geometric Variations of Automotive Spaceframe Extrusions 

      Yu (Michael) Wang; F. L. Hulting; P. S. Fussell; S. Gupta (The American Society of Mechanical Engineers (ASME), 1998)
      This article presents a method for characterizing geometric shape variations in manufactured automotive spaceframe extrusions using measurement data obtained by a Coordinate Measurement Machine ...

    • Numerical Studies of Gas Jet/Molten Layer Interaction During Laser Cutting 

      C. K. Lim; P. A. Molian; R. C. Brown; J. M. Prusa (The American Society of Mechanical Engineers (ASME), 1998)
      The interaction of the gas jet with the molten layer during reactive-gas assisted laser cutting is investigated. The Navier-Stokes equations in each region are solved with an implicit finite-difference ...