Powder Metallurgy Diamond Tools

Powder Metallurgy Diamond Tools is the first book of its kind to cover the role of powder metallurgy in the production of diamond-impregnated tool components. Providing essential information on modelling, design, composition, fabrication, performance, wear and applications, this book is ideal for manufacturers, tool designers, end-users, metallurgists, R&D departments, specifiers and consultants.

Diamond-impregnated tools are used increasingly in industries where wear-resistant drills or cutting tools are required. The cobalt matrix in which the diamond is embedded is manufactured by pressing and sintering, techniques commonly used in powder metallurgy, but the process is complex and intricate. This book provides a comprehensive account of all you need to know about the role of powder metallurgy in the production of diamond-impregnated tools, giving metal powder manufacturers a better understanding of the requirements of diamond tool producers and end users, leading to the development of superior products.

This book will… 1. Clarify the science and properties involved in powder metallurgy and the production of diamond tools 2. Explain the manufacturing process 3. Help improve your machining and finishing techniques, leading to better results 4. Optimise your tool use and wear, helping you to save time and money 5. Help you to consider new applications, optimising your equipment and resources

Author is a leading authority on diamond tools and has published extensively on the subjectA comprehensive account of all you need to know about the role of powder metallurgy in the production of diamond-impregnated tool componentsAn important reference for manufacturers of powdered diamond and cobalt for the tool industry, tool designers and manufacturers, users of diamond-impregnated tools, metallurgists, designers, R&D Departments, specifiers and consultants

Historical development of diamond tools Classification of diamond tools Loose diamond abrasives Single-crystal diamond Bonded diamond grits and powders Polycrystalline diamond (PCD) CVD diamond Machining with diamonds – theoretical model Circular sawing Frame sawing Wire sawing Core drilling; Concluding remarks Diamond tool design and composition The effect of tool design on its performance Metal matrix selection Cobalt powders Cobalt substitutes Other matrix powders Diamond grit selection Coated grits Diamond tool fabrication Powder metallurgy Matrix powder preparation Matrix-diamond mixture preparation Cold pressing Hot pressing Sintering Hot isostatic pressing Infiltration Other consolidation routes Deburring Quality control Finishing operations Radius grinding Brazing/laser welding Truing and dressing Tensioning Wire saw assembly Microstructure of the matrix Processing to near full density Grain size Recovery and recrystallisation Phase composition Mechanical properties of the matrix Hardness Yield strength; Bending strength Impact strength Wear properties of the matrix Resistance to abrasive wear Two-body abrasive wear Three-body abrasive wear Resistance to erosive wear The role of diamond Main application areas and operating guidelines for diamond impregnated tools Sawing Core drilling Grinding and polishing