TAILIEUCHUNG - Cutting Tools P3

The condition and physical properties of the work material have a direct influence on the machinability of a work material. The various conditions and characteristics described as ‘condition of work material’, individually and in combinations, directly influence and | Cutting Tool Applications Upcoming Chapters Metal Removal Cutting-Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines Grooving and Threading Shaping and Planing Hole Making Processes Drills and Drilling Operations Drilling Methods and Machines Boring Operations and Machines Reaming and Tapping Chapter 3 Machinability of Metals Multi Point Machining Milling Cutters and Operations Milling Methods and Machines Broaches and Broaching Saws and Sawing Abrasive Processes Grinding Wheels and Operations Grinding Methods and Machines Lapping and Honing George Schneider Jr. CMfgE Professor Emeritus Engineering Technology Lawrence Technological University Former Chairman Detroit Chapter ONE Society of Manufacturing Engineers Former President International Excutive Board Society of Carbide Tool Engineers Lawrence Tech. Univ. http Prentice Hall http Introduction The condition and physical properties of the work material have a direct influence on the machinability of a work material. The various conditions and characteristics described as condition of work material individually and in combinations directly influence and determine the machinability. Operating conditions tool material and geometry and workpiece requirements exercise indirect effects on machinability and can often be used to overcome difficult conditions presented by the work material. On the other hand they can create situations that increase machining difficulty if they are ignored. A thorough understanding of all of the factors affecting machinability and machining will help in selecting material and workpiece designs to achieve the optimum machining combinations critical to maximum productivity. Condition of Work Material The following eight factors determine the condition of the work material microstructure grain size heat treatment chemical composition fabrication hardness yield .

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