Modern Gear Production
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Modern Gear Production focuses on the processes and methods in gear making. The book first gives information on the history of gear making and types of gears. Topics such as the classification of gears based on the disposition of their shafts; shafts lying in the same plane with axes intersecting; and shafts lying in parallel planes but with axes inclined to one another are then discussed. The text describes gear groups, tooth forms, and gear materials. Heat treatment of steels, casehardening, nitriding, induction hardening, sulfinuzing, and flame hardening are explained. The book takes a look at blank manufacture, gear milling, and gear shaping and planning. The text further examines gear hobbing. Topics include precision of hobbing machines, worm-wheel hobbing, hob setting, control of accuracy of gears, and hobbing gears for general purposes. The different kinds of hobs, profile grinding, and shaving and lapping are also discussed. The book also focuses on other manufacturing methods, such as thread whirling, broaching gear teeth, tooth rounding, work hardening, and electrochemical machining. The text is a vital source of data for readers interested in gear making.
Table of Contents
Introduction
Acknowledgments
1. Brief History of Gear Making
2. Types of Gear
2.1. Classification of Gears Based on The Disposition of Their Shafts
2.1.1. Shafts Lying in Same Plane and Parallel—Spur Gears
2.1.2. Helical Gears
2.2. Shafts Lying in Same Plane with Axes Intersecting—Bevel Gears
2.2.1. Straight Bevel Gears
2.2.2. Spiral Bevel Gears
2.2.3. Conical Bevel Gears
2.3. Shafts Lying in Parallel Planes But with Axes Inclined to One Another
2.3.1. Hypoid Gears
2.3.2. Spiroid Gears
2.3.3. Worm Gears
2.3.4. Crossed Helical Gears
3. Gear Groups and Tooth Forms
3.1. Grouping of Gears
3.1.1. Cylindrical Gears
3.1.2. Conical Gears
3.1.3. Double-Enveloping and Parallel Worm Gears
3.2. Tooth Forms
3.2.1. Cycloidal Teeth
3.2.2. Teeth Based on Circular Arcs
3.2.2(A). Circular Arc Pump Rotors
3.2.2(B). Wildhaber-Novikov Gears
3.2.2(C). Arc-Contact and Niemann Worm Gears
3.2.3. Enveloping Gears
3.2.3(A). Vickers-Bostock-Bramley Enveloping Gears
3.2.3(B). Double-Enveloping Worm Gears
3.2.4. Involute Teeth
4. Materials
4.1. Gear Materials
4.1.1. Cast Iron
4.1.2. Inoculated Irons
4.1.3. Spheroidal Graphite Or Nodular Cast Iron
4.1.4. Alloy Cast Irons
4.2. Steels
4.2.1. Carbon Steels
4.2.2. Forged Carbon Steels
4.2.3. Cast Carbon Steels
4.3.1. Forged Alloy Steels
4.3.2. Through-Hardening Alloy Steels
4.3.3. Casehardening Alloy Steels
4.3.4. Cast Alloy Steels
4.4.Non-Ferrous Metals
4.4.1. Copper Alloys
4.4.2. Aluminum Alloys
4.5. Plastics
5. Heat Treatment
5.1. Heat Treatment of Steels
5.1.1. Normalizing
5.2. Direct Or Through-Hardened Steels
5.3. Casehardening
5.3.1. Work Support During Casehardening
5.3.2. Preventing Carbon Penetration
5.3.3. Pack Carburizing
5.3.4. Gas Carburizing
5.3.5. Scale Prevention
5.3.6. Casehardening Large Gears
5.3.7. Salt-Bath Casehardening
5.4. Nitriding
5.4.1. Gas Nitriding
5.4.2. Salt-Bath Nitriding
5.5. Induction Hardening
5.5.1. Power Generators
5.5.2. Inductors
5.5.3. Induction Hardening Machines For Large Gears
5.5.4. Induction Hardening Machines For Small Gears
5.6. Flame Hardening
5.6.1. Flank Hardening
5.6.2. Spin Hardening
5.7. Sulfinuzing
6. Methods of Manufacture
6.1. Casting
6.1.1. Investment Casting
6.1.2. Die Casting
6.1.3. Shell Molding
6.1.4. Centrifugal Casting of Bronze
6.1.5. Centrifugal Casting of Steel
6.2. Powder Metallurgy Applied to Gear Production
7. Blank Manufacture
7.1. Blank Manufacture
7.1.1. Helical and Spur Gears
7.1.2. Solid Forgings
7.1.3. Wheel Rims
7.2. Welded Wheels
7.2.1. Electron Beam Welding
7.3. Cast Steel Wheel Blanks
7.4.1. Turning Blanks For Cylindrical Gears
7.4.2. Bevel Gear Blanks
7.5.1. Worm-Wheel Blank Manufacture
7.5.2. Cast-On Rims
7.5.3. Small Worm-Wheel Blanks
7.6.1. Lathes For Blank Manufacture
7.6.2. Numerical Control
8. Gear Milling
8.1. Milling
8.1.1. Circular Milling Cutters
8.1.2. End Milling
8.2.1. Spiral Bevel Gear Production— The Gleason Process
8.2.2. Oerlikon Spiromatic Spiral Bevel Gear Milling Process
8.2.3. Fiat Spiral Bevel Gear Milling Process
8.2.4. Klingelnberg Bevel Gear Cutting Process
8.2.5. Gleason Epicurv Method of Bevel Gear Cutting
8.2.6. Hypoid Gear Cutting
9. Gear Planing and Shaping
9.1. Gear Planing
9.1.1. The Sunderland Process
9.1.2. The Maag Planing Process
9.2. Straight Bevel Gear Cutting
9.2.1. Straight Bevel Gear Planing
9.2.2. Heidenreich and Harbeck Method
9.2.3. Gleason Coniflex Method
9.2.4. Gleason Revacycle Method
9.3. Gear Shaping
9.3.1. The Fellows Process
9.3.2. The Sykes Process
9.3.3. Gear Shaper Cutters
9.4. Internal Gear Cutting
10. Gear Hobbing
10.1. Hobbing
10.1.1. The Conventional Hobbing Process
10.1.2. Creep Hobbing Machines
10.2. Precision Hobbing Machines
10.2.1. Precision Gear Hobbing
10.2.2. Hobbing Precision Pinions
10.3. Control of Accuracy of Gears
10.4. Hobbing Gears For General Purposes
10.5. Hob Setting
10.6.1. High-Speed Hobbing Machines
10.6.2. Automatic Control of Hobbing Machines
10.7. Worm-Wheel Hobbing
10.8. Klingelnberg Bevel Gear Hobbing
11. Gear Hobs
11.1. Gear Hobs
11.1.1. Materials
11.1.2. Design
11.1.3. Manufacture
11.1.4. Heat Treatment
11.1.5. Finishing Processes
11.2. Multiple-Start Hobs
11.3. The Klingelnberg Roughing Hob
11.4. Worm-Wheel Hobs
11.4.1. Serrated Hobs
11.4.2. Hobs For Double-Enveloping Worm Gears
11.4.3. Fly Hobs
11.5. Protuberance Hobs
12. Profile Grinding
2.1. Gear Profile Grinding
12.1.1. The Maag Gear Grinding Process
12.1.2. The Reishauer Method of Gear Grinding
12.1.3. The Niles Method of Gear Grinding
12.2. Form Grinding
12.2.1. The Orcutt Method of Gear Grinding
12.3. Worm Grinding
13. Shaving and Lapping
13.1. Gear Shaving
13.1.1. Worm-Wheel Shaving
13.1.2. Crossed-Axis Shaving
13.1.3. Shaving Cutters
13.1.4. Crossed-Axis Angle
13.1.5. Application of Load
13.1.6. Shaving of Larger Gears
13.2. The Fellows Fini-Shear Process
13.3. Lapping
13.3.1. Lapping Bevel and Hypoid Gears
13.3.2. The Mechanical Lapping Process
13.3.3. Lapping Spur and Helical Gears
13.3.4. Gears Lapped in Their Cases
13.4. Running-In Materials
13.5. Gear Honing
14. Other Manufacturing Method
14.1. Thread Whirling
14.2. Gear Rolling
14.2.1. Cold Rolling
14.2.2. Hot Rolling
14.2.3. Cold Extrusion of Gears
14.2.4. Hot Forging of Gears
14.3. Broaching Gear Teeth
14.4. Tooth Rounding
14.5. Electrochemical Machining
14.6. Work Hardening
14.6.1. Shot Peening
14.6.2. Fillet Rolling
15. Surface Finishing Processes
15.1. Vapour Blasting
15.2. Electrochemical and Chemical Finishing
15.3. Gear Surface Treatments
15.3.1. Phosphating
15.3.2. Molybdenum Disulphide and Graphite
15.4. Electroplating
15.4.1. Hardfacing
15.5. Metal Spraying
16. Accuracy, Quality and Inspection of Gear-Making Machines
16.1. Accuracy of Gear Generating Machines
16.1.1. Machine Table and Bed
16.1.2. Truth of The Column in Hobbing and Grinding Machines
16.1.3. Master Worms
16.1.4. Feed Screw Accuracy
16.1.5. Hob Saddle
16.1.6. Hob Spindle and Hob Arbor
16.1.7. Hob Spindle Drive
16.1.8. Table Bearings
16.1.9. Thermal Equilibrium
16.2. Automatic Correcting Devices
16.2.1. Temac System of Measurement and Correction
16.2.2. Inductosyn System of Correction
16.2.3. The National Engineering Laboratory Portable Grating Method of Measuring Transmission Errors
16.2.4. Seismic Method of Error Measurement
16.3. Accuracy of Index Plates
16.4. Foundations for Hobbing Machines
16.4.1. Foundations for Other Gearmaking Machines
16.5. General Comments on Gearcutting-Machine Accuracy
17. Measurement of Gear Accuracy
17.1. Accuracy of Gears
17.1.1. Measurement of Gear Blanks
17.1.2. Setting Gear Blanks and Tools in Gear-Cutting Machines
17.2. Measurement of Pitch Errors
17.2.1. Manually Operated Pitch-Measuring Instruments
17.2.2. Cumulative Pitch Measurement
17.2.3. Adjacent Pitch Measurement
17.2.4. Base Pitch Measurement
17.2.5. Automatic Pitch-Measuring Instruments
17.3. Double Flank Testing Fixture
17.4. Helix Modification and Measurement
17.5. Profile Measurement
17.5.1. Profile Measurement By Coordinates
17.6. Determination of Undulations
17.7. Phasing Errors in Double Helical Gears
17.8. Measurement of Journal Roundness
17.9. Inspection Methods
17.10. Measurement of Surface Texture
17.11. Accuracy of Meshing
Bibliography
British Standard Specifications
Index
Product details
- No. of pages: 376
- Language: English
- Copyright: © Pergamon 1970
- Published: January 1, 1970
- Imprint: Pergamon
- eBook ISBN: 9781483157344