Tham khảo tài liệu 'cutting tools part 18', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Upcoming Chapters CHAPTIR18 Lapping and Honing Introduction 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 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- Lapping is a final abrasive finishing operation that produces extreme dimensional accuracy corrects minor imperfections of shape refines surface finish and produces close fit between mating surfaces. Most lapping is done with a tooling plate or wheel the lap and fine-grained loose abrasive particles suspended in a viscous or liquid vehicle such as soluble oil mineral oil or grease. A typical lapping operation is shown in Figure . Honing is a low velocity abrading process. Material removal is accomplished at lower cutting speeds than in grinding. Therefore heat and pressure are minimized resulting in excellent size and geometry control. The most common application of honing is on internal cylindrical surfaces. The cutting action is obtained using abrasive sticks mounted on a metal mandrel. Since the work is fixed in such a way as to allow floating and no clamping or chucking there is no distortion. Lapping Processes The principal use of the lapping process is to obtain surfaces that are truly flat and smooth. Lapping is also used to .
