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Machinability and Surface Integrity Part 10

Tham khảo tài liệu 'machinability and surface integrity part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Machinability and Surface Integrity 359 Mininum Insert edge s undeformed Rounding effect region chip thickness Figure 184. The insert s cutting edge illustrating the rounding effect exaggerated or a manufacturer s edge preparation and the material flow conditions that arise as a result the machining operation but it also provides the user with validated and relevant data analysis. These positive benefits enable tool designers and users alike to design and develop advanced cutting tools and to undertake efficient and optimised machining operations. Beyond the positive advantages of tool optimisation simulation can significantly reduce tooling development costs and lead times to bring a newly-developed product to market. The role of machining simulation is likely to rapidly grow as more tooling and production engineers become aquainted with these software packages. 360 Chapter 7 7.10 Surface Integrity of Machined Components -Introduction Previously in Section 7.5 concerning machined surface texture the discussion was principally concerned with the resultant surface topography where the topographical information was valid but disguised the fact that potential sub-surface material layers might have compromised and altered the machined component. The concept of the overall functional performance of a surface and its accompanying sub-surface condition was recognised by Field and Kahles 1971 where they used the term Surface Integrity to describe its potential state. The overall concept of surface integrity ant its various generating mechanisms in conjunction with the production process is known as the unit event 81. This unit event has now been reclassified into five discrete generating mechanisms chemical mechanical mechano-thermal thermo-mechanical and thermal - the order they are listed reflects their respective power density per unit area. For example increases in the power density from the chemical end of the series results in an augmented level of thermal energy .