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Mechanical Properties of Steel
Cutting Tools Materials
High Speed Steels
Polycrystalline Cubic Boron Nitride (PCBN)
Depth of Cut and Feed Rate
Cutting Speeds for Carbon Steels
Cutting Speeds for Alloy Steels
Cutting Speeds for Stainless Steels
Cutting Speeds for Tool Steels
Metal Removal Rate
Unit Power and Power Constant
Calculating Required Machining Power
Appendix 1: Hardness Conversion
Appendix 2: Carbon Steels
Appendix 3: Alloy Steels
Appendix 4: Stainless Steels
Appendix 5: Tool Steels
Machining is one of the most important manufacturing processes, which remove unwanted material in the form of chips from a workpiece. Material removal operations are among the most expensive; in the U.S. alone, more than $100 billion were spent on machining in 1999. These high costs put tremendous economic pressures on production managers and engineers as they struggle to find ways to increase productivity.
Machining recommendations provided in this book cover turning since it allows removing more material per unit of time and consuming more power at the roughing operations than end milling, boring or drilling. Machining recommendations relate to cutting speeds, feed rates, and depth of cuts. Such recommendations depend on the workpiece material properties and the cutting tool material. Workpiece materials described in this book are the most commonly used grades of carbon, alloy, stainless, tool, and maraging steels. Cutting tool materials are cemented carbides, cermets, and ceramics.