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  • The ABC's of Rz
    depth-is the most commonly specified surface finish parameter in Germany and several other European countries, instead of the U.S. preferred choice, Ra. However, it turned out that the Rz specified was not the current ISO or U.S. standard version they were used to, but a much older Japanese domestic
  • Surface Finish: A Machinist`s tool. A Design Necessity
    Surface finish, or texture, can be viewed from two very different perspectives. From the machinist's point of view, texture is a result of the manufacturing process. By altering the process, the texture can be changed. From the part designer's point of view, surface finish is a condition
  • Surface Analysis: Beyond Roughness
    Most discussions on the quality of surface finish revolve around the measure of roughness. Indeed, roughness is the most common measure of surface finish, and parameters such as average roughness (Ra) and mean roughness depth (Rz) are the most commonly specified. But the ways to measure a surface
  • Apples, Oranges and Surface Finish Parameters
    . 4. 5. 6. 7. 8. 9. 10. News. 11. 12. 13. 14. 15. 16. 17. Editorial Archives. Apples, Oranges and Surface Finish Parameters. 18. 19. 20. 21. 22. 23. 24. Article Reprints. 25. 26. 27. 28. 29. 30. 31. Letters From The Editor. Brain Teasers. Here's a question that is all too familiar to surface finish
  • Measuring Surface Roughness and Texture
    and the deepest valley in five sampling lengths,. or cutoffs. Rz is more sensitive than Ra to the changes in surface. finish, because maximum profile heights, and not the averages,. are being examined. There is no firm conversion between Ra and. Rz parameters, as the actual ratio depends upon the shape
  • Beyond Roughness (.pdf)
    Most discussions on the quality of surface finish revolve around the measure of roughness. Indeed, roughness is the most common measure of surface finish, and parameters such as average roughness (Ra) and mean roughness depth (Rz) are the most commonly specified. But the ways to measure a surface
  • Medical Device Link .
    forging and investment casting with finishes obtained by grinding and polishing reveals that initial surface finishes can be quite rough. Ultimately, however, an implant 's working surfaces, such as knee condyles, are buffed to a mirrorlike finish. Most manufacturers use proprietary processes. Still
  • Comparing Tactile and Optical Technologies (.pdf)
    algorithms to incorporate three dimensional surface data, but it's not as easy at it might. seem. For example, in the various Rz parameters (there are several), a "peak " is defined in relation of a mean. line. In two dimensions, this is fairly straightforward, but when you add a third dimension, that mean