Journal of Manufacturing Science and Engineering: Recent submissions

Now showing items 4641-4660 of 7723

    • Monitoring Cutting Forces In Turning: A Model-Based Approach 

      Jeffrey L. Stein; Kunsoo Huh (The American Society of Mechanical Engineers (ASME), 2002)
      The importance of monitoring the cutting force in the turning process has been well recognized in industry as well as in the open literature. This paper proposes a cutting force monitoring ...

    • Analyzing Industrial Furnace Efficiency Using Comparative Visualization in a Virtual Reality Environment 

      Lori Freitag; Timothy Urness (The American Society of Mechanical Engineers (ASME), 2002)
      We describe an interactive toolkit used to perform comparative analysis of two or more data sets arising from numerical simulations. Several techniques have been incorporated into this toolkit, ...

    • Mechanical Analysis of Ultrasonic Bonding for Rapid Prototyping 

      Yuan Gao; Charalabos Doumanidis (The American Society of Mechanical Engineers (ASME), 2002)
      Ultrasonic bonding of thin foils has been recently introduced to rapid prototyping of complex-shaped and/or internally structured layered parts. This article provides the mechanical analysis of ...

    • Process Optimal Design in Forging by Genetic Algorithm 

      J. S. Chung; Researcher; S. M. Hwang (The American Society of Mechanical Engineers (ASME), 2002)
      A genetic algorithm based approach is presented for process optimal design in forging. In this approach, the optimal design problem is formulated on the basis of the integrated thermo-mechanical ...

    • An Experimental Investigation on the Effect of Vibration on Casting Surface Finish 

      M. T. Alonso Rasgado; K. Davey (The American Society of Mechanical Engineers (ASME), 2002)
      One of the failings of the pressure die casting process is that variable surface quality is a common result. This paper provides evidence that die vibration can be used to polish castings ...

    • Determination of Friction Condition by Geometrical Measurement of Backward Extruded Aluminum Alloy Specimen 

      Yong-Taek Im; Jae-Seung Cheon; Seong-Hoon Kang (The American Society of Mechanical Engineers (ASME), 2002)
      The proper determination of friction condition during metal forming operations is imperative for successful process design and production of parts. Through the years, various methods of determining ...

    • Quantitative Analysis of Inner Force Distribution and Load Capacity of Grasps and Fixtures 

      Youlun Xiong; Han Ding; Michael Yu Wang (The American Society of Mechanical Engineers (ASME), 2002)
      This paper focuses on a quantitative analysis for grasp planning and fixture design based on an analytical description of point contact restraint. In the framework, the analysis deals with the ...

    • Micro- and Sub-Micromachining of Type IIa Single Crystal Diamond Using a Ti:Sapphire Femtosecond Laser 

      Diwakar Ramanathan; Pal A. Molian (The American Society of Mechanical Engineers (ASME), 2002)
      A 200-fs pulsed Ti:Sapphire laser was used to micromachine Type IIa single crystal diamond. The effects of pulse energy and exposure time were investigated. Both blind and through holes were ...

    • Experimental and Numerical Investigation on the Influence of Process Speed on the Blanking Process 

      A. M. Goijaerts; L. E. Govaert; F. P. T. Baaijens (The American Society of Mechanical Engineers (ASME), 2002)
      In a previous work a numerical tool was presented which accurately predicted both process force and fracture initiation for blanking of a ferritic stainless steel in various blanking geometries. ...

    • On-Line Thinning Measurement in the Deep Drawing Process 

      Moshe Berger; Eyal Zussman (The American Society of Mechanical Engineers (ASME), 2002)
      The conventional deep drawing process is limited to a certain Limit Drawing Ratio (LDR), beyond which localized wall thinning and rupture occur. One way to increase the LDR is to try to ...

    • The Process Window for Reference Free Part Encapsulation 

      Elmer Lee; Paula Valdivia; Winston Fan; Sanjay E. Sarma (The American Society of Mechanical Engineers (ASME), 2002)
      Reference Free Part Encapsulation (RFPE) is an automatic, universal workholding process developed by the authors and by researchers at Berkeley. In RFPE, a block of filler material encapsulates ...

    • Statistical Classification of Spectral Data for Laser Weld Quality Monitoring 

      Afsar Ali; Postdoctoral Researcher; Dave Farson (The American Society of Mechanical Engineers (ASME), 2002)
      Signals from several sensors were employed for real-time laser weld quality monitoring. Sheet-metal butt-joint laser welds of three quality classes (full penetration, partial penetration, gapped) ...

    • Micro Scale Laser Shock Processing of Metallic Components 

      Wenwu Zhang; Y. Lawrence Yao (The American Society of Mechanical Engineers (ASME), 2002)
      Laser shock processing of copper using focused laser beam size about ten microns is investigated for its feasibility and capability to impart desirable residual stress distributions into the ...

    • The Precise Measurement of Free-Form Surfaces1 

      William Wolovich; Hassan Albakri; Hulya Yalcin (The American Society of Mechanical Engineers (ASME), 2002)
      We outline a new procedure for measuring free-form curves and surfaces using implicit polynomial equations. Such equations have long been known to offer certain advantages over the more traditional ...

    • Estimation of Reference Misalignment of a Spur Gear and its Application to Profile and Lead Measurement 

      Xiaogen Su; Product Engineer; Chia-Hsiang Menq; Donald R. Houser (The American Society of Mechanical Engineers (ASME), 2002)
      In this paper, the effect of the reference misalignment on the tooth measurements of an involute spur gear is examined. Analytical relations between the profile/lead traces and the reference ...

    • Microstructure Integrated Modeling of Multiscan Laser Forming 

      Jin Cheng; Y. Lawrence Yao (The American Society of Mechanical Engineers (ASME), 2002)
      Laser forming of steel is a hot forming process with high heating and cooling rate, during which strain hardening, dynamic recrystallization, and phase transformation take place. Numerical models ...

    • The Combination of Attractive Regions and Pre-images in Motion Planning 

      H. Qiao (The American Society of Mechanical Engineers (ASME), 2002)
      The general purpose of sensors is to obtain information on the system. However, in many cases, sensors cannot provide all the information on the system being controlled. On the other hand, ...

    • Fault Diagnosis of Multistage Manufacturing Processes by Using State Space Approach 

      Yu Ding; Dariusz Ceglarek; Jianjun Shi (The American Society of Mechanical Engineers (ASME), 2002)
      This paper presents a methodology for diagnostics of fixture failures in multistage manufacturing processes (MMP). The diagnostic methodology is based on the state-space model of the MMP process, ...

    • Development of a Flexible Laser Ultrasonic Probe 

      Sandra N. Hopko; I. Charles Ume; Dathan S. Erdahl (The American Society of Mechanical Engineers (ASME), 2002)
      Ultrasonics is a widely used nondestructive testing technique, which is often applied off-line for weld quality inspection. Laser ultrasonic (LU) inspection systems have the potential for on-line ...

    • Low-Frequency Regenerative Vibration and the Formation of Lobed Holes in Drilling 

      Philip V. Bayly; Michael T. Lamar; Sean G. Calvert (The American Society of Mechanical Engineers (ASME), 2002)
      Large-amplitude vibrations in drilling often occur at frequencies near multiples of the rotation frequency, even when these are much lower than the system’s first natural frequency. These vibrations ...