T. Z. Blazynski

Design of Tools for Deformation Processes (eBook, PDF)

• Format: PDF

Produktbeschreibung

Although the problem of tool design - involving both the selection of suitable geometry and material- has exercised the attention of metal forming engineers for as long as this industrial activity has existed, the approach to its solution has been generally that of the 'trial and error' variety. It is only relatively recently that the continuing expansion of the bulk metal-forming industry, combined with an increase in the degree of sophistication required of its products and processes, has focussed attention on the problem of optimisation of tool design. This, in turn, produced a considerable expansion of theoretical and practical investi gations of the existing methods, techniques r,nd concepts, and helped to systematise our thinking and ideas in this area of engineering activity. In the virtual absence, so far, of a single, encyclopaedic, but sufficien tly deep, summation of the state of the art, a group of engineers and materials scientists felt that an opportune moment had arrived to try and produce, concisely, answers to many tool designers' dilemmas. This book attempts to set, in perspective, the existing - and proven - concepts of design, to show their respective advantages and weaknesses and to indicate how they should be applied to the individual main forming processes of rolling, drawing, extrusion and forging.

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Produktdetails

• Verlag: Springer Netherlands
• Seitenzahl: 291
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9789400941779
• Artikelnr.: 43985667

Inhaltsangabe

1. Concepts of Tool Design.- 1.1. Introduction.- 1.2. Pass Geometry and Product Quality.- 1.3. Empirical and Theoretical Bases for Design.- 1.4. Design Concepts and Their Effects.- References.- 2. Longitudinal and Oblique Rolling.- 2.1. Longitudinal Rolling: Hollow Sections.- 2.2. Roll Groove Design: Sinking and Stretch-Reducing Mills.- 2.3. Longitudinal Rolling: Bar and Rod.- 2.4. The Pilger Process: Rotary Forging.- 2.5. The Push Bench Process.- 2.6. The Diescher Mill: Elongation by Oblique Rolling.- 2.7. Expanding by Oblique Rolling.- 2.8. The Assel Mill: Oblique Elongating by Three Stepped Rolls.- 2.9. Three-Roll Planetary Rolling.- 2.10. Rotary Piercing.- References.- 3. The Drawing of Metals.- 3.1. Developments in the Drawing of Metals.- 3.2. Developments in Drawing Lubricants.- 3.3. Development of Tool Materials.- 3.4. The Mechanical Design of Draw Tools.- 3.5. Theoretical Considerations.- 3.6. Unusual and Recent Developments in Drawing.- References.- 4. Extrusion.- 4.1. Introduction.- 4.2. Design of Tools for Hot Extrusion.- 4.3. Industrial Practice in Tool Design.- 4.4. Theoretical Approaches and Limitations.- 4.5. Future Developments.- 4.6. Conform.- 4.7. Cold Extrusion of Steel.- 4.8. Cold Extrusion of Non-Ferrous Components.- 4.9. Hydrostatic, HERF and Other Extrusion Techniques.- References.- 5. Forging.- 5.1. Forging Process Variables Affecting Die Design and Manufacture.- 5.2. Importance of Forging Geometry and Shape Complexity.- 5.3. Design of Finisher Dies.- 5.4. Design of Blocker Dies.- 5.5. Computer-Aided Methods for Designing Forging Dies.- 5.6. Metal Flow Simulation for Optimizing Die Design.- 5.7. Manufacturing of Forging Dies.- 5.8. Dies for Special Forging Techniques.- References.- 6. Friction and Tools.- 6.1. Influence of Friction in Metal-Working.- 6.2. The Mechanics of Asperity Deformation.- 6.3. The Origin of Friction Stresses.- 6.4. Lubrication.- 6.5. Measurement of Friction.- 6.6. Friction and Normal Stress Distributions in Various Metal-Forming Processes.- 6.6.1. Upsetting.- References.- 7. Selection of Tool Materials.- 7.1. Introduction.- 7.2. Required Properties of Metal-Forming Tooling.- 7.3. Steels.- 7.4. Near Net Shape Tooling.- 7.5. Cemented Carbide.- 7.6. Ceramic and Ultra Hard Tool Materials.- 7.7. Titanium Carbide: High-Speed Steels.- 7.8. Surface Treatments and Coatings on Tool Materials.- 7.9. Concluding Remarks.- References.- 8. Computer Design.- 8.1. Introduction.- 8.2. Computer-Integrated Manufacturing.- 8.3. Computer-Aided Design: A Review.- 8.4. Computer-Aided Manufacture.- 8.5. Applications of Solid Modelling.- 8.6. Conclusion.- References.