If the cutting speed is increased, then the built -up-edge

becomes longer

may or may not form

becomes smaller and finally does not form at all

has nothing to do with speed

direction of the tool axis

direction of tool travel

perpendicular to the direction of the tool axis

central plane of the work piece

high metal removal rate

dry machining

use of soft cutting tool

surface finish

shear velocity

chip velocity

cutting velocity

mean velocity

tool relative to the work piece

chip relative to the tool

tool along the tool face

none of these