TAILIEUCHUNG - Cutting Tools Part 15

Tham khảo tài liệu 'cutting tools part 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 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 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 CHAPTER15 Saws and Sawing Introduction Once sawing was considered a secondary machining process and saws were used mostly for cutting bar stock in preparation for other machining operations. In recent years the development of new types of saws and better blade materials have made metal sawing a much more effective versatile and economical process. In many cases bandsaws are now being used as the primary means of shaping certain types of metal parts. When the proper sawing machines and blades are used sawing is one of the most economical means of cutting metal. The saw cut kerf is narrow and relatively few chips are produced in making a cut. When a bandsaw is used for cutting the contours of complex shapes only a small portion of the metal is removed in the form of chips. Therefore the power used in removing large amounts of waste metal is at a minimum. 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 Prentice Hall- Sawing S awing is a proce s s where a narrow slit is cut into the workpiece by a tool consisting of a series of narrowly spaced teeth called a saw blade. Sawing is normally used to separate work parts into two or more pieces or to

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