Now showing items 6881-6900 of 7723

    • An Investigation of Local Heat Transfer during Grinding Process—Effects of Porosity of Grinding Wheel 

      Y. Saito; N. Nishiwaki; Y. Ito (The American Society of Mechanical Engineers (ASME), 1979)
      The thermal boundary condition around the workpiece surface is one of important factors to analyze the thermal deformation of a workpiece, which is in close relation to the machining, accuracy ...
    • Application of the Finite Element Method in the Development of Improved Railroad Car Wheel Designs 

      T. M. Rusin; D. G. Kleeschulte; J. M. Coughlin (The American Society of Mechanical Engineers (ASME), 1979)
      This paper discusses the use of the finite element method in the development of an improved 33-inch (.838 m) railroad wheel that has been introduced into service. Calculated elastic stresses ...
    • Deformation and Curvatures in Sheet-Metal in the Bulge Test 

      H. M. Shang; T. C. Hsü (The American Society of Mechanical Engineers (ASME), 1979)
      The displacements and strains of a circular specimen subjected to hydraulic pressure are studied and are compared with theoretical results predicted by previous investigators. By proposing a ...
    • On the Measurement and Propagation of Flank Wear in Cutting Tools 

      M. M. Tseng; R. A. Noujaim (The American Society of Mechanical Engineers (ASME), 1979)
      More than three hundred flank wear profiles of carbide cutting tools were digitized, stored and analyzed. It was found that different measures of the same wear zone, such as averages or ...
    • Theoretical and Experimental Study of the Conform Metal Forming Process 

      J. Tirosh; G. Grossman; G. Gordon (The American Society of Mechanical Engineers (ASME), 1979)
      An analytical and experimental investigation of a new continuous extrusion process (the “Conform Process”) is presented. The extruding force in this process is provided by frictional shear generated ...
    • Prediction Equations Relating High Velocity Jet Cutting Performance to Stand Off Distance and Multipasses 

      M. Hashish; M. P. du Plessis (The American Society of Mechanical Engineers (ASME), 1979)
      A previously derived equation for continuous jet penetration of solids (1) is combined with empirical equation for jet spreading and velocity decay in air. These equations are used to study ...
    • Modelling of Elastic-Plastic Bending of Beams Using a Roller Bending Machine 

      N. E. Hansen; O. Jannerup (The American Society of Mechanical Engineers (ASME), 1979)
      A model for bending steelbeams with rectangular crossection on a three-roller bending machine has been set up. The main effort has been paid to the geometry of the process. The basis for the ...
    • Reliability Analysis of Parallel Manufacturing Systems with Two Machines 

      K. Hitomi; M. Nakajima; N. Takahashi (The American Society of Mechanical Engineers (ASME), 1979)
      A stochastic mathematical model was built and analyzed by using the reliability theory for a manufacturing system in which two machines are arranged in parallel. Under the condition that the ...
    • Determination of True Cutting Signal by Separation of Instrumentation Dynamics From Measured Response 

      E. Garcia-Gardea; F. A. Burney; S. M. Wu (The American Society of Mechanical Engineers (ASME), 1979)
      The Dynamic Data System (DDS) methodology is used for the separation of the cutting signal from the dynamics of a dynamometer. A sixth order continuous Autoregressive Moving Average model is ...
    • Static and Dynamic Analysis of Hydraulic Copying System Using Throttling Valve 

      S. Kato; K. Yamaguchi; E. Marui (The American Society of Mechanical Engineers (ASME), 1979)
      The effect of dimension parameters of hydraulic copying control system using throttling valve on the copying accuracy is investigated from two points of view for good design of the system. One ...
    • Electrochemical Grinding of WC-Co Cemented Carbides 

      R. Levinger; S. Malkin (The American Society of Mechanical Engineers (ASME), 1979)
      An investigation is reported on electrochemical grinding (ECG) of WC-Co cemented carbides, with particular consideration of their heterogeneity. An analysis of the electro-chemical removal process ...
    • On the Mechanism of Chip Breaking 

      S. Kaldor; A. Ber; E. Lenz (The American Society of Mechanical Engineers (ASME), 1979)
      During metal cutting while products are being manufactured, the access material is removed in the form of chips. These chips are obtained in various shapes which depend on cutting conditions, ...
    • Lubricated Extrusion of “T” Sections from Aluminum, Titanium and Steel Using Computer-Aided Techniques 

      V. Nagpal; C. F. Billhardt; T. Altan (The American Society of Mechanical Engineers (ASME), 1979)
      This paper describes the application of computer-aided techniques to the lubricated extrusion of shapes such as L ’s and T ’s. A simple analysis of the lubricated direct-extrusion process is ...
    • Design of Computer Control for Manufacturing Systems 

      Y. Koren (The American Society of Mechanical Engineers (ASME), 1979)
      An analysis is presented of computerized numerical control (CNC) for manufacturing systems. Two types of CNC systems referred to as Reference-Pulse and Sampled-Data are discussed. In the first ...
    • Similitude Law for the Creep-Adhesion Function in Dry Contact 

      C. A. Sciammarella; S. Kumar; L. Nailescu; B. B. Seth (The American Society of Mechanical Engineers (ASME), 1979)
      This paper describes an experimental study on the dry friction-creep phenomenon. The study has been carried out on a test-rig. The simulated wheel has an elliptical area of contact similar to ...
    • Construction of Three-Workpiece Lapping Process 

      Y. Sakai; Y. Tanaka; M. Ido (The American Society of Mechanical Engineers (ASME), 1979)
      A new method, designated three-workpiece lapping, is proposed to produce flat surfaces of all the three workpieces prepared through some stages of reciprocation lapping, which is performed by a ...
    • The Tension-Roller-Leveling Process—Elongation and Power Loss 

      E. J. Patula (The American Society of Mechanical Engineers (ASME), 1979)
    • Economic Sizing of Steam Piping and Insulation 

      W. J. Wepfer; R. A. Gaggioli; E. F. Obert (The American Society of Mechanical Engineers (ASME), 1979)
      This paper presents a simple method for the optimal economic selection of pipe size and insulation thickness for steam piping systems. The primary operating costs inherent in any such system ...
    • Hydrazine Monopropellant Reciprocating Engine Development 

      J. W. Akkerman (The American Society of Mechanical Engineers (ASME), 1979)
      A hydrazine-fueled piston-type engine for providing 11.2 kW (15 hp) has been developed to satisfy the need for an efficient power supply in the range from 3.7 to 74.6 kW (5 to 100 hp) where ...
    • A Study of Oil/Water Separation in Corrugated Plate Separators 

      R. A. Jaisinghani; G. S. Sprenger (The American Society of Mechanical Engineers (ASME), 1979)
      Simplified trajectory calculations and small scale experiments suggest that the mechanisms of oil separation in corrugated plates are similar to those of other plate separators and that the ...