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عدد المساهمات : 18928 التقييم : 35294 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
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أخوانى فى الله أحضرت لكم كتاب Machine Tool Design 3rd Edition N.K.MEHTA ملحوظة : الكتاب غير كامل والموجود حاليا هو المعروض فقط على موقع جوجل للكتب
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Contents About the Author ii Preface xi 1 * INTRODUCTION TO MACHINE TOOL DRIVES AND MECHANISMS— 1 GENERAL PRINCIPLES OF MACHINE TOOL DESIGN Ll Working and Auxiliary Morions in Machine Tools J 1.2 Palamctcrs Dcfin ing Worldng Mot ions of a Machine Tool 3 1.3 Machine TootDriy^t 19 1.4 I Wdrmihc Transmission and Its Elements 23 L5 Mechanical Transmission and Its Elements 34 14 Technico-economical Prerequisites for Undertaking die Design of a New Machine Tool 52 L7 General Requirements of Machine Tool Design 54 LS Engineering Design Process Applied to Machine Tools 57 L9 Layout of Machine Tool 60 Review Questions 65 References 67 2. REGULATION OF SPEED AND FEED RATES 68 2.1 Aim of Speed and Feed Rate Regulation 68 22 Stepped Regulation of Speed: Design of Speed Box 69 23 Design of Feed Box 90 2.4 Machine Tool Drives Using Multiple-speed Motors 95 2.5 Special Cases of Gear Box Design 95 2.6 Genera I Recommenda[tionsfor Deve Iopi ng t he Gearing I )iagram i 05 2.7 I >etermining the Numher pfl'eeth of Gears ! OS 2.8 Classification of Speed and Feed Boxes 118 2.9 Stepless Regulation of Speed and Feed Rates 124 24 0 Kinematics of Machine Tools 140 Review Questions 163 References 166 3* DESIGN OF MACHINE TOOL STRUCTURES 167 3.1 Functions of Machine Tool Structures and their Requirements 167 3.2 Design Criteria for Machine Tool Structures 167vlii Contents 3.3 Materials of Machine Tbol Structures /70 3.4 Staticand Dynamtc tr Srififtiess /75 3.5 Profiles of Machine Tool Structures /52 3.6 Basic Design Procedure of Machine Tool Structures 188 3.7 Design of Beds ! 97 3.8 Design of Columns 2/3 3.9 Design ot’ Housings 216 3;10 Design ofBases and Tables 219 3.11 Design of Cross Rails, Anns, Saddles and Carriages 22! 3.12 Design of Rams 222 3.13 Model Teetmique in Design of Macbine Too1 STRUCTLIRES 224 Review Questions 228 References 221 4, DESIGN OP GUI DP:WAVS AM) POWER SCREWS 4. i Functions and Types of Guideways 233 4.2 Design of Slideways 234 4.3 I>esign Criteria and Calculations for SIideways 243 4.4 Guideways Operating under l iquid Friction Conditions 4.5 Design of Aerostatic Slideways 265 4.6 I3esign of Anti-friefion Guideways 267 4.7 Combination Guideways 273 4.8 Protecting Devices for Slideways 274 4.9 Design of Power Serews 276 Questions 285 References 5, DESIGN OF SPINDLES AND SPINDLE SUPPORTS 5.1 Functions of Spindle Unit and Requirements 288 5.2 Materia Es of Spindles 289 5.3 Effect of Machine Tool Compliance on Machining Accuracy 290 5.4 Design Calculations of Spindles 294 5.5 Anti-friction Ehearings 303 5.6 Sliding Bearings 310 Review Questions 332 References 28«Contents in 6. DYNAMICS OF M ACHINE TOOLS 6.1 Machine Tool Elastic System-cutting Process Closed-lcK>gfSystem 335 6.2 General Procedure for Assessing Dynamic Stability of Ees— Gutting Process Closed-Loop System 336 6.2 Dynamic Charactenstics of Elements and SysLems 339 6.4 Dynamic Characteristic of the Equivalent Elastic System 340 6.3 Dynamic Characteristic of the Cutting Process 352 6.6 Stability Analysis 366 6.7 Forced Vibration^ of Machine Tools 378 Review Questions 383 References 385 7\ CONTROL SYSTEMS IN MACHINE TOOLS 7 . t Functions, Requirements and Classification 386 7.2 Control Systems for Changing Speeds and Feeds 386 1.2 Control Systems for Executing Forming and Auxiliary Motions 396 7 ,4 Manual Control Systems 397 IS Automatic Control Systems 410 7.6 Adaptive Control Systems 415 References 8. NUMERICAL CONTROL OF MACHINE TOOLS 419 8.1 Fundamental Concepts, Classification and Structure of Numerical Control Systems 419 8.2 Manual Port Programming 440 8.3 Computer Aided Fart Programming 465 Review Questions 486 Referenceit 493 9, EXTENSIONS OF NUMERICALCONTROL— CNQ DIS C, 494 MACHINING CENTRES 9.1 Distributive Numerical Control (DNC-1J 495 9.2 Computer Numerical Control (CNC) 495 9.3 Machining Centres 498 9.4 Direct Numerical Control (DNC-3) 501 9.5 CNC Programming 504 Review Questionns 538 Index 543
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عدد المساهمات : 43 التقييم : 59 تاريخ التسجيل : 25/03/2011 العمر : 35 الدولة : مصر العمل : خريجة هندسة تحضر دبلوما
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عدد المساهمات : 18928 التقييم : 35294 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
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