Does your measurement device for cylindrically ground workpieces output cryptic displays of UPRs and FFTs? What exactly are “undulations per rev” and “Fourier Transforms”? The 91st episode of the CTE Grinding Doc video series discusses these outputs and what they mean.
About the Grinding Doc Video Series: Thanks to his grinding courses and his work as an independent grinding consultant and the author of the "Ask the Grinding Doc" column in Cutting Tool Engineering magazine, Badger routinely receives questions about grinding from shops all over the world. Through the magazine column and this video series, he provides shops with the insight and guidance they seek.
For more information about the Grinding Doc, visit his website here.
Related Glossary Terms
Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.
- undulations per revolution (UPR)
undulations per revolution (UPR)