feed per revolution is meant by feed in lathe machine.
feed per revolution is meant by feed in lathe machine.
what is meant by feed in lathe machine?
feed per revolution
the ratio of the spindle speed and the feed rate controls how aggressive the cut is, and the nature of the swarf formed.









































section::::feed rate.:formula to determine feed rate.









































this formula can be used to figure out the feed rate that the cutter travels into or around the work. this would apply to cutters on a milling machine, drill press and a number of other machine tools. this is not to be used on the lathe for turning operations, as the feed rate on a lathe is given as "feed per revolution."









































formula_8









































where:
speeds and feeds
between 1800 and 1840, on the machine-screw side, it became common practice to build all of the relevant screw-cutting machine elements into engine lathes, so the term "screw-cutting lathe" ceased to stand in contradistinction to other metalworking lathe types as a "special" kind of lathe. meanwhile, on the wood-screw side, hardware manufacturers had developed for their own in-house use the first fully automatic [mechanically automated] special-purpose machine tools for the making of screws. the 1760–1840 development arc was a tremendous technological advance, but later advancements would make screws even cheaper and more prevalent yet again. these began in the 1840s with the adaptation of the engine lathe with a turret-head toolholder to create the turret lathe. this development greatly reduced the time, effort, and skill needed from the machine operator to produce each machine screw. single-pointing was forgone in favor of die head cutting for such medium- and high-volume repetitive production. then, in the 1870s, the turret lathe's part-cutting cycle (sequence of movements) was automated by being put under cam control, in a way very similar to how music boxes and player pianos can play a tune automatically. according to rolt (1965), the first person to develop such a machine was christopher miner spencer, a new england inventor. may have contemporarily independently invented a machine similar to spencer's. however, the wood-screw-making machines of the 1840s and 1850s [special-purpose factory production machine tools as opposed to small-machine-shop machine tools], such as those developed by cullen whipple of the new england screw company and thomas j. sloan of the american screw company, had anticipated the machines of spencer and vander woerd in various ways, albeit approaching the problem of automated screw production from a different commercial angle. all of the above machine tools (i.e., screw-cutting lathes; suitably equipped engine lathes and bench lathes; turret lathes; turret-lathe-derived screw machines; and wood-screw-factory screw machines) were sometimes called "screw machines" during this era (logically enough, given that they were machines tailored to screw making). the nomenclatural evolution whereby the term "screw machine" is often used more narrowly than that is discussed above.
automatic lathe