Now showing items 6461-6480 of 7723

    • A Method for Generating Desired Contact Pressure Distributions in Experimental Interfacial Studies 

      M. H. Attia; L. Kops (The American Society of Mechanical Engineers (ASME), 1985)
      Computer simulation of the thermal deformation behavior of machine tools requires a priori knowledge of the correlation between the contact pressure distribution and the thermal contact resistance ...
    • Contact Pressure Between an Annular Indenter and a Flat Surface 

      T. Kato; K. Yamaguchi; S. Kato (The American Society of Mechanical Engineers (ASME), 1985)
      The pressure distributions on the contact surface between annular indenters of three different inner radii and flat surfaces were measured experimentally by using a newly developed method, in ...
    • Unconventional Tee Forming on Metal Tubes 

      L. A. Moreira Filho; H. A. Al-Qureshi (The American Society of Mechanical Engineers (ASME), 1985)
      An experimental machine using elastomer rod has been developed for the forming of tee-junction on metal tubes. This was achieved by applying loading-unloading cycles to the tube and the elastomer ...
    • Direct Upper-Bound Solution and Finite Element Approach to Round-To-Square Drawing 

      C. R. Boër; W. D. Webster (The American Society of Mechanical Engineers (ASME), 1985)
      The paper presents a direct comparison between two modeling techniques of metal forming processes, in the present case wire drawing. The two methods have the same basic approach in using the ...
    • An Analytical Approach to the Problem of Core Fracture During Extrusion of Bimetal Rods 

      B. Avitzur; R. Wu; S. Talbert; Y. T. Chou (The American Society of Mechanical Engineers (ASME), 1985)
      The process of core fracture in bimetals during extrusion was reexamined. The new analysis, based on the upper-bound theorem in limit analysis, eliminated the lengthy numerical computations ...
    • Influence of Anisotropy on the Drawability of Continuously Cast Copper 

      E. J. Ewertz; E. G. Thomsen; F. D. Negroni (The American Society of Mechanical Engineers (ASME), 1985)
      Two anisotropic copper rods 12.5 mm in diameter produced in continuous casting operations at different casting speeds were successfully drawn as cast at various reductions in area up to 60 ...
    • On a Methodology for Establishing the Machine Tool System Requirements for High-Speed/High-Throughput Machining 

      R. Komanduri; J. McGee; R. A. Thompson; J. P. Covy; F. J. Truncale; V. A. Tipnis; R. M. Stach; R. I. King (The American Society of Mechanical Engineers (ASME), 1985)
      This paper presents a methodology for determining the machine tool system requirements for high-speed machining (HSM)/high-throughput machining (HTM). Both technological and economic factors should ...
    • An Integrated Machining Process Design Simulator for the Optimal Design of Face Milling Systems 

      S. J. Lee; S. G. Kapoor; R. E. DeVor (The American Society of Mechanical Engineers (ASME), 1985)
      An Integrated Machining Process Design Simulator (IMPDS) is developed and applied as a general tool for the design of face milling systems. The simulator includes four modules to accommodate ...
    • Highlights of the DARPA Advanced Machining Research Program 

      R. Komanduri; D. G. Flom; M. Lee (The American Society of Mechanical Engineers (ASME), 1985)
      Results of a four-year Advanced Machining Research Program (AMRP) to provide a science base for faster metal removal through high-speed machining (HSM), high-throughput machining (HTM) and ...
    • A Dynamic Analysis of High-Speed Machining 

      R. F. Recht (The American Society of Mechanical Engineers (ASME), 1985)
      The dynamics of chip formation during high-speed orthogonal machining (planing) is examined. Merchant’s vector diagram of the forces acting upon the continuous chip free body is expanded to ...
    • Stability Analysis of a Constant Force Adaptive Control System for Turning 

      O. Masory; Y. Koren (The American Society of Mechanical Engineers (ASME), 1985)
      Adaptive Control Constrains (ACC) as applied to machine tool systems refers to the regulation of the cutting process characteristics such as spindle power, cutting force etc., by varying the ...
    • Analysis of Three-Dimensional Cutting Process Dynamics 

      X. G. Yang; K. F. Eman; S. M. Wu (The American Society of Mechanical Engineers (ASME), 1985)
      A new experimental method for three-dimensional cutting analysis based on times series models and the Dynamic Data System methodology is introduced. Its theoretical formulation allows the treatment ...
    • Kinematic Synthesis of a Three-Axis Twist Drill Point Grinding Machine 

      M. A. Fugelso (The American Society of Mechanical Engineers (ASME), 1985)
      Recently developed computer-controlled twist drill grinding machines have allowed the production of precisely defined points of widely different shapes. The design methodology used for these machines ...
    • A Finite Element Model of Orthogonal Metal Cutting 

      J. S. Strenkowski; J. T. Carroll (The American Society of Mechanical Engineers (ASME), 1985)
      A finite element model of orthogonal metal cutting is described. The paper introduces a new chip separation criterion based on the effective plastic strain in the workpiece. Several cutting ...
    • Some Empirical Evidence on Machine Tool Deterioration and its Use in Projecting Machine Tool Requirements 

      H. J. Steudel (The American Society of Mechanical Engineers (ASME), 1985)
      This paper presents the results of research efforts to estimate the rate at which machine tools deteriorate. A relationship between machine tool deterioration based on component wearout “failures,” ...
    • Optimization of Abrasive Life in Ultrasonic Machining 

      S. W. Dharmadhikari; C. S. Sharma (The American Society of Mechanical Engineers (ASME), 1985)
      Based on two models of material removal in ultrasonic machining, developed in an earlier work, conditions for optimum abrasive life for the objective functions of minimum cost per unit volume ...
    • Hydroforming Sheet Metal Into Axisymmetrical Shells With Draw-In of Flange Permitted 

      H. M. Shang; F. S. Chau; C. J. Tay; S. L. Toh (The American Society of Mechanical Engineers (ASME), 1985)
      In this investigation, the clamped portion of copper test specimens is allowed to be drawn slightly into the die throat when hydroformed into axisymmetrical shells. Changing the blank holding ...
    • An Upper-Bound Solution for Tube Cropping 

      R. S. Rao; P. K. Wright (The American Society of Mechanical Engineers (ASME), 1985)
      An upper-bound solution for the cropping of thin-walled tubes is developed, based on a plastic hinge approach, to predict the load-deflection behavior up to the point of shearing. A simple ...
    • A Consideration on Deep-Drawability of Commercially Pure Aluminum Sheets 

      N. Kawai; A. Eguchi; Y. Yasui; T. Mori; N. Hayashi (The American Society of Mechanical Engineers (ASME), 1985)
      Correlation between the deep-drawability of commercially pure aluminum sheets and the r value is investigated in detail. First, sheets with various r values are specially made for this study, ...
    • Summary of Space Station Papers 

      Unknown author (The American Society of Mechanical Engineers (ASME), 1984)