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Description
English: A line drawing showing some basic concepts of speeds and feeds in the context of lathe work. The angular velocity of the workpiece (rev/min) is called the "spindle speed" (light blue) by machinists. Its tangential linear equivalent at the tool-cutter interface (m/min or sfm) is called the "cutting speed", "surface speed", or simply the "speed" (dark blue) by machinists. The "feeds" may be for the X-axis (purple) or the Z-axis (pink) (typically mm/rev or inch/rev for lathe work; sometimes measured as mm/min or inch/min). Notice that as the tool plunges closer to the workpiece's center, the same spindle speed will yield a decreasing surface (cutting) speed (because each rev represents a smaller circumferential distance, but takes the same amount of time). Most CNC lathes have CSS to counteract that natural decrease, which speeds up the spindle as the tool plunges in.
Date
Source Own work
Author Three-quarter-ten

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4 January 2011

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Date/TimeThumbnailDimensionsUserComment
current02:21, 7 January 2011Thumbnail for version as of 02:21, 7 January 2011465 × 633 (14 KB)Three-quarter-tenRotated 90°, because it provides a view much closer to that of the traditional "operator's viewpoint".
00:59, 7 January 2011Thumbnail for version as of 00:59, 7 January 2011633 × 465 (14 KB)Three-quarter-tenCleaner drawing; separate arrows for spindle speed vs surface speed; better for interlingual use (each lang can make labels as desired).
01:07, 5 January 2011Thumbnail for version as of 01:07, 5 January 2011800 × 617 (15 KB)Three-quarter-ten{{Information |Description={{en|1=A line drawing showing some basic concepts of speeds and feeds in the context of lathe work.}} |Source={{own}} |Author=Three-quarter-ten |Date=2011-01-04 |Permission= |other_versions= }} [[Cate

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