Machining characteristics

Xem 1-20 trên 44 kết quả Machining characteristics
  • In this chapter you will learn the following: ² The concepts of power, (real reactive and apparent) and power factor ² The operation of threephase systems and the characteristics of balanced loads in Y and in ¢ ² How to solve problems for threephase systems

    pdf123p longmontran 14-01-2010 44 8   Download

  • Flux and Voltage Induction Machines 6.1 Description 6.2 Concept of Operation 6.3 Torque Development 6.4 Operation of the Induction Machine near Synchronous Speed 6.5 Leakage Inductances and their Effects 6.6 Operating characteristics 6.7 Starting of Induction Motors 6.8 Multiple pole pairs Synchronous Machines and Drives 7.1 Design and Principle of Operation 7.1.1 Wound Rotor Carrying DC 7.1.2 Permanent Magnet Rotor 7.2 Equivalent Circuit 7.3 Operation of the Machine Connected to a Bus of Constant Voltage and Frequency 7.4 Operation from a Source of Variable Frequency and Voltage...

    pdf132p nunongnuna 01-04-2013 23 5   Download

  • Tungsten Carbide - Processing and Applications, provides fundamental and practical information of tungsten carbide from powder processing to machining technologies for industry to explore more potential applications. Tungsten carbide has attracted great interest to both engineers and academics for the sake of its excellent properties such as hard and wear-resistance, high melting point and chemically inert. It has been applied in numerous important industries including aerospace, oil and gas, automotive, semiconductor and marine as mining and cutting tools, mould and die, wear parts, etc.

    pdf146p crius75 02-01-2013 31 4   Download

  • We introduce a stochastic grammatical channel model for machine translation, that synthesizes several desirable characteristics of both statistical and grammatical machine translation. As with the pure statistical translation model described by Wu (1996) (in which a bracketing transduction grammar models the channel), alternative hypotheses compete probabilistically, exhaustive search of the translation hypothesis space can be performed in polynomial time, and robustness heuristics arise naturally from a language-independent inversiontransduction model. ...

    pdf8p bunrieu_1 18-04-2013 13 2   Download

  • This paper present a n e w method for parsing English sentences. The parser called L U T E - E J parser is combined with case analysis and A T N G - b a s e d analysis. L U T E - E J parser has two interesting mechanical characteristics. O n e is providing a structured buffer, Structured Constituent Buffer, so as to hold previous fillersfor a case structure, instead of case registers before a verb appears in a sentence. The other is extended H O L D mechanism(in ATN), in whose use an embedded...

    pdf5p bungio_1 03-05-2013 13 2   Download

  • We investigate the problem of domain adaptation for parallel data in Statistical Machine Translation (SMT). While techniques for domain adaptation of monolingual data can be borrowed for parallel data, we explore conceptual differences between translation model and language model domain adaptation and their effect on performance, such as the fact that translation models typically consist of several features that have different characteristics and can be optimized separately.

    pdf11p bunthai_1 06-05-2013 15 2   Download

  • In this article we outline a basic approach to treating metonymy properly in a multilingual machine translation system. This is the first attempt at treating metonymy in an machine translation environment. The approach is guided by the differences of acceptability of metonymy which were obtained by our comparative survey among three languages, English, Chinese, and Japanese. The characteristics of the approach are as follows: (1) Influences of the context, individuals, and familiality with metonymy are not used.

    pdf3p bunmoc_1 20-04-2013 15 1   Download

  • This chapter include all of the following content: Introduction to polyphase synchronous machines, synchronous – machine inductances and equivalent circuits, performance characteristics, effects of salient poles, power – angle characteristics of salient – pole machines, permanent – magnet ac motors.

    pdf62p youcanletgo_04 17-01-2016 3 0   Download

  • CONTENTS CONTENTS 962 C H A P T E R n A Textbook of Machine Design Sliding Contact Bearings 1. Introduction. 2. Classification of Bearings. 3. Types of Sliding Contact Bearings. 4. Hydrodynamic Lubricated Bearings. 5. Assumptions in Hydrodynamic Lubricated Bearings. 6. Important Factors for the Formation of Thick Oil Film. 7. Wedge Film Journal Bearings. 8. Squeeze Film Journal Bearings. 9. Properties of Sliding Contact Bearing Materials. 10. Materials used for Sliding Contact Bearings. 11. Lubricants. 12. Properties of Lubricants. 13. Terms used in Hydrodynamic Journal Bearings. 14.

    pdf34p hadalabo 29-09-2010 59 22   Download

  • Computers are machines designed to process, electronically, specially prepared pieces of information which are termed data. Handling or manipulating the information that has been given to the computer, in such ways as doing calculations, adding information or making comparisons is called processing. Computers are made up of millions of electronic devices capable of storing data or moving them, at enormous speeds, through complex circuits with different functions.

    pdf4p xuankhuong 18-09-2009 195 19   Download

  • CONTENTS CONTENTS Chain Drives C H A P T E R n 759 Chain Drives 1. Introduction. 2. Advantages and Disadvantages of Chain Drive over Belt or Rope Drive. 3. Terms Used in Chain Drive. 4. Relation Between Pitch and Pitch Circle Diameter. 5. Velocity Ratio of Chain Drives. 6. Length of Chain and Centre Distance. 7. Classification of Chains. 8. Hoisting and Hauling Chains. 9. Conveyor Chains. 10. Power Transmitting Chains. 11. Characteristics of Roller Chains. 12. Factor of Safety for Chain Drives. 13. Per missible Speed of Smaller Sprocket. 14. Power Transmitted by Chains. 15.

    pdf17p hadalabo 29-09-2010 50 19   Download

  • A coordinate measuring machine (CMM) is a device for measuring the physical geometrical characteristics of an object. This machine may be manually controlled by an operator or it may be computer controlled. Measurements are defined by a probe

    doc5p dthi16088 21-03-2011 97 16   Download

  • An electric drive is the electromechanical system that converts electrical energy to mechanical motion. Being a part of automatic equipment, it acts together with the driven object, such as a machine tool, metallurgical, chemical, or flying apparatus, domestic or medical device. Electric drives area includes applications in computers and peripherals, motor starters, transportation (electric and hybrid electric vehicles, subway, etc.

    pdf102p sn_buon 29-11-2012 41 15   Download

  • This chapter presents basic knowledge on the special kind of the machining process in which a workpiece material hardened to 45–70 HRC hardness or more is machined with mixed ceramic or CBN tools. An extended comparison with finish grinding, as well with other abrasive finishing processes, is carried out. Specific cutting characteristics, including cutting forces, chip formation mechanisms and tool wear modes with relevant interface temperatures are discussed in terms of process conditions. Currently developing finite element (FE) and analytical modelling is overviewed.

    pdf30p nguyen8 30-11-2009 82 11   Download

  • Rolling contact bearings are also called anti-friction bearing due to its low friction characteristics. These bearings are used for radial load, thrust load and combination of thrust and radial load. These bearings are extensively used due to its relatively lower price, being almost maintenance free and for its operational ease.

    pdf11p phuphong 09-12-2009 23 10   Download

  • CHAPTER 40 CAM MECHANISMS Andrzej A. Ol?dzki, D.Sc.f Warsaw Technical University, Poland SUMMARY / 40.1 40.1 CAM MECHANISM TYPES, CHARACTERISTICS, AND MOTIONS / 40.1 40.2 BASIC CAM MOTIONS / 40.6 40.3 LAYOUT AND DESIGN; MANUFACTURING CONSIDERATIONS / 40.17 40.4 FORCE AND TORQUE ANALYSIS / 40.22 40.5 CONTACT STRESS AND WEAR: PROGRAMMING / 40.25 REFERENCES / 40.28 SUMMARY This chapter addresses the design of cam systems in which flexibility is not a consideration. Flexible, high-speed cam systems are too involved for handbook presentation.

    pdf28p hadalabo 29-09-2010 45 9   Download

  • CHAPTER 43 FLUID POWER SYSTEMS AND CIRCUIT DESIGN Russ Henke, RE. Russ Henke Associates Elm Grove, Wisconsin 43.1 PRESSURE PLOTS / 43.2 43.2 FLOW PLOTS / 43.2 43.3 POWER PLOTS / 43.3 43.4 CYCLE PROFILE / 43.4 43.5 CIRCUIT DESIGN / 43.4 43.6 OPEN-LOOP AND CLOSED-LOOP CIRCUITS / 43.5 43.7 CONSTANT-FLOW VERSUS DEMAND-FLOW CIRCUITS—OPEN LOOP / 43.12 43.8 DEMAND-FLOW CIRCUITS / 43.20 43.9 HYDRAULIC VERSUS PNEUMATIC SYSTEMS / 43.28 43.10 PNEUMATIC CIRCUITS / 43.28 43.11 EFFECT OF FLUID CHARACTERISTICS ON ACTUATOR PERFORMANCE / 43.28 43.

    pdf48p hadalabo 29-09-2010 35 8   Download

  • CHAPTER 32 CHAIN DRIVES John L. Wright General Product Manager Diamond Chain Company Indianapolis, Indiana 32.1 TYPES, USES, AND CHARACTERISTICS / 32.2 32.2 ROLLER CHAINS: NOMENCLATURE AND DIMENSIONS / 32.4 32.3 SELECTION OF ROLLER-CHAIN DRIVES / 32.7 32.4 LUBRICATION AND WEAR/32.14 32.5 ENGINEERING STEEL CHAINS: NOMENCLATURE AND DIMENSIONS / 32.18 32.6 SELECTION OF OFFSET-SIDEBAR-CHAIN DRIVES / 32.20 32.7 SILENT CHAINS: NOMENCLATURE AND DIMENSIONS / 32.25 32.8 SELECTION OF SILENT-CHAIN DRIVES / 32.28 REFERENCES / 32.

    pdf32p hadalabo 29-09-2010 56 5   Download

  • Sophisticated engines could not even happen until Maxwell’s use of dif- ferential equations in order to stop the engines of that time from flying apart, stopping, or oscillating wildly, so the mathematics here starts with advanced calculus. Today’s engines are far more sophisticated. Their designs require the solutions of complex non-linear partial differential equations and very advanced work with linear algebra. Today a major focus is on autonomous machines, machines that can do routine and even non-routine tasks without human control.

    pdf83p dacotaikhoan 25-04-2013 18 5   Download

  • CHAPTER 30 CLUTCHES AND BRAKES John R. Zimmerman, Ph.D. Professor of Mechanical and Aerospace Engineering University of Delaware Newark, Delaware 30.1 TYPES, USES, ADVANTAGES, AND CHARACTERISTICS / 30.4 30.2 TORQUE AND ENERGY CONSIDERATIONS / 30.14 30.3 TEMPERATURE CONSIDERATIONS / 30.21 30.4 FRICTION MATERIALS / 30.23 30.5 TORQUE AND FORCE ANALYSIS OF RIM CLUTCHES AND BRAKES / 30.25 30.6 BAND AND CONE BRAKES AND CLUTCHES / 30.34 30.7 DISK CLUTCHES AND BRAKES / 30.40 30.8 ELECTROMAGNETIC TYPES / 30.45 30.9 ACTUATION PROBLEMS / 30.48 REFERENCES / 30.50 SUGGESTED READING / 30.

    pdf50p hadalabo 29-09-2010 42 4   Download

Đồng bộ tài khoản