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Heat Treatment of Gears: A Practical Guide for Engineers

A.K. Rakhit
Format
Book
Published
Materials Park, OH : ASM International, c2000.
Language
English
ISBN
0871706946
Contents
  • Chapter 2 Properties of Iron 5
  • Alloys of Iron and Carbon 7
  • Transformation (Decomposition) of Austenite 10
  • Chapter 3 Heat Treatment of Gears 17
  • Major Heat Treat Processes 18
  • Chapter 4 Through-Hardening Gears 21
  • Through-Hardening Processes 22
  • Some Hints on Through-Hardened Gear Design 24
  • Hardness Measurement 25
  • Heat Treat Distortion of Through-Hardened Gears 25
  • Applications 26
  • Case History: Design and Manufacture of a Rack 27
  • Material Selection 27
  • Process Selection 29
  • Chapter 5 Carburizing and Hardening Gears 33
  • Gas Carburizing 34
  • Carburizing Temperature 34
  • Furnaces and Equipment for Gas Carburizing 36
  • Hardening 37
  • Direct Quenching 38
  • Reheating of Carburized Gears and Quenching 39
  • Surface Hardness Variations after Quenching 40
  • Tempering of Carburized and Quenched Gears 40
  • Recarburizing 42
  • Cold Treatment 43
  • Selection of Materials for Carburized Gears 44
  • Hardness and Hardenability 45
  • Carbon Content and Case Property 50
  • Core Hardness of Gear Teeth 62
  • Microstructure of Carburized Cases 68
  • Some Carburizing Problems 68
  • Heat Treat Distortion of Carburized and Hardened Gears 76
  • Mechanics of Heat Treat Distortion 77
  • Material and Heat Treat Process Factors 77
  • Vacuum-Melted versus Air-Melted Alloy Steels 81
  • Measurement of Gear Distortions 85
  • Some Recommendations to Minimize Distortion 86
  • Preheating of Gears 90
  • Distortion Characteristics of Some Gear Materials 90
  • Improvement in Gear Design to Control Heat Treat Distortion 91
  • Grinding Stock Allowance on Tooth Flanks to Compensate for Distortion 100
  • Grinding of Distorted Gears 101
  • Actual Stock Removal and Tooth Surface Hardness 103
  • New Pitting Life 105
  • Distortion Derating Factor 107
  • Side Effects of Grinding Carburized and Hardened Gears 108
  • Shot Peening of Carburized and Hardened Gears 111
  • Heat Treat Characteristics of Two Commonly Used Gear Materials: AISI 4320 and 9310 121
  • Carburizing Cost 122
  • Applications 123
  • Case History: Distortion Control of Carburized and Hardened Gears 123
  • New Heat Treat Facilities 124
  • Tests 125
  • Chapter 6 Nitriding Gears 133
  • Gas Nitriding Process 133
  • Recommended Tip and Edge Radii of Teeth 137
  • White Layer in Nitrided Gears 137
  • General Recommendations of Nitrided Gears 140
  • Microstructure of Nitrided Cases and Cores 141
  • Overload and Fatigue Damage of Nitrided Gears 143
  • Bending-Fatigue Life of Nitrided Gears 144
  • Nitriding Cost 145
  • Distortion in Nitriding 145
  • European Nitriding Steels 146
  • Applications 147
  • Case History A Nitriding 148
  • Case History B Failure of Nitrided Gears 152
  • Chapter 7 Modern Nitriding Processes 159
  • Ion/Plasma Nitriding Gears 159
  • Case History: Application of Ion Nitriding to an Internal Ring Gear at an Epicyclic Gear Box 164
  • Chapter 8 Carbonitriding Gears 171
  • Case Depth in Carbonitriding 172
  • Measurement of Case Depth 172
  • Materials 172
  • Distortion 172
  • Applications 173
  • Chapter 9 Induction Hardening Gears 175
  • Materials 176
  • Pre-Heat Treatment 176
  • Hardening Patterns 176
  • Heating with Induction 177
  • Quenching 178
  • Tempering 178
  • Surface Hardness and Case Depth 178
  • Induction Hardening Problems 180
  • Applications 182
  • Recent Advancements in Induction Hardening 182
  • Dual-Frequency Process 182
  • Flame Hardening 184
  • Chapter 10 Selection of Heat Treat Process for Optimum Gear Design 185
  • Materials Selection 185
  • Gear Design Feature 187.
Description
ix, 209 p. : ill. ; 27 cm.
Notes
Includes bibliographical references (p. [189]-192) and index.
Technical Details
  • Access in Virgo Classic
  • Staff View

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    g| Chapter 2 t| Properties of Iron g| 5 -- t| Alloys of Iron and Carbon g| 7 -- t| Transformation (Decomposition) of Austenite g| 10 -- g| Chapter 3 t| Heat Treatment of Gears g| 17 -- t| Major Heat Treat Processes g| 18 -- g| Chapter 4 t| Through-Hardening Gears g| 21 -- t| Through-Hardening Processes g| 22 -- t| Some Hints on Through-Hardened Gear Design g| 24 -- t| Hardness Measurement g| 25 -- t| Heat Treat Distortion of Through-Hardened Gears g| 25 -- t| Applications g| 26 -- t| Case History: Design and Manufacture of a Rack g| 27 -- t| Material Selection g| 27 -- t| Process Selection g| 29 -- g| Chapter 5 t| Carburizing and Hardening Gears g| 33 -- t| Gas Carburizing g| 34 -- t| Carburizing Temperature g| 34 -- t| Furnaces and Equipment for Gas Carburizing g| 36 -- t| Hardening g| 37 -- t| Direct Quenching g| 38 -- t| Reheating of Carburized Gears and Quenching g| 39 -- t| Surface Hardness Variations after Quenching g| 40 -- t| Tempering of Carburized and Quenched Gears g| 40 -- t| Recarburizing g| 42 -- t| Cold Treatment g| 43 -- t| Selection of Materials for Carburized Gears g| 44 -- t| Hardness and Hardenability g| 45 -- t| Carbon Content and Case Property g| 50 -- t| Core Hardness of Gear Teeth g| 62 -- t| Microstructure of Carburized Cases g| 68 -- t| Some Carburizing Problems g| 68 -- t| Heat Treat Distortion of Carburized and Hardened Gears g| 76 -- t| Mechanics of Heat Treat Distortion g| 77 -- t| Material and Heat Treat Process Factors g| 77 -- t| Vacuum-Melted versus Air-Melted Alloy Steels g| 81 -- t| Measurement of Gear Distortions g| 85 -- t| Some Recommendations to Minimize Distortion g| 86 -- t| Preheating of Gears g| 90 -- t| Distortion Characteristics of Some Gear Materials g| 90 -- t| Improvement in Gear Design to Control Heat Treat Distortion g| 91 -- t| Grinding Stock Allowance on Tooth Flanks to Compensate for Distortion g| 100 -- t| Grinding of Distorted Gears g| 101 -- t| Actual Stock Removal and Tooth Surface Hardness g| 103 -- t| New Pitting Life g| 105 -- t| Distortion Derating Factor g| 107 -- t| Side Effects of Grinding Carburized and Hardened Gears g| 108 -- t| Shot Peening of Carburized and Hardened Gears g| 111 -- t| Heat Treat Characteristics of Two Commonly Used Gear Materials: AISI 4320 and 9310 g| 121 -- t| Carburizing Cost g| 122 -- t| Applications g| 123 -- t| Case History: Distortion Control of Carburized and Hardened Gears g| 123 -- t| New Heat Treat Facilities g| 124 -- t| Tests g| 125 -- g| Chapter 6 t| Nitriding Gears g| 133 -- t| Gas Nitriding Process g| 133 -- t| Recommended Tip and Edge Radii of Teeth g| 137 -- t| White Layer in Nitrided Gears g| 137 -- t| General Recommendations of Nitrided Gears g| 140 -- t| Microstructure of Nitrided Cases and Cores g| 141 -- t| Overload and Fatigue Damage of Nitrided Gears g| 143 -- t| Bending-Fatigue Life of Nitrided Gears g| 144 -- t| Nitriding Cost g| 145 -- t| Distortion in Nitriding g| 145 -- t| European Nitriding Steels g| 146 -- t| Applications g| 147 -- g| Case History A t| Nitriding g| 148 -- g| Case History B t| Failure of Nitrided Gears g| 152 -- g| Chapter 7 t| Modern Nitriding Processes g| 159 -- t| Ion/Plasma Nitriding Gears g| 159 -- t| Case History: Application of Ion Nitriding to an Internal Ring Gear at an Epicyclic Gear Box g| 164 -- g| Chapter 8 t| Carbonitriding Gears g| 171 -- t| Case Depth in Carbonitriding g| 172 -- t| Measurement of Case Depth g| 172 -- t| Materials g| 172 -- t| Distortion g| 172 -- t| Applications g| 173 -- g| Chapter 9 t| Induction Hardening Gears g| 175 -- t| Materials g| 176 -- t| Pre-Heat Treatment g| 176 -- t| Hardening Patterns g| 176 -- t| Heating with Induction g| 177 -- t| Quenching g| 178 -- t| Tempering g| 178 -- t| Surface Hardness and Case Depth g| 178 -- t| Induction Hardening Problems g| 180 -- t| Applications g| 182 -- t| Recent Advancements in Induction Hardening g| 182 -- t| Dual-Frequency Process g| 182 -- t| Flame Hardening g| 184 -- g| Chapter 10 t| Selection of Heat Treat Process for Optimum Gear Design g| 185 -- t| Materials Selection g| 185 -- t| Gear Design Feature g| 187.
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    a| Gearing x| Heat treatment.
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    a| ASM International.
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    a| TJ184 .R35 2000 w| LC i| X004477778 l| STACKS m| SCI-ENG t| BOOK
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