INVESTIGATION OF CUTTING FORCE IN HARDENED STEEL TURNING

The paper presents results of the processing parameter effect, i.e. the magnitude of cutting speed and cutting force component feed in turning of hardened steel grades 45, 40X, 50X, CVH hardness 45..50 HRC with the help of the tool equipped with cutting ceramics EQA-60. The laboratory bench has been used for experimental studies, including a screw-cutting lathe 1K625 and the measuring device STD.201-2. The presence of the cutting speed range providing the minimum magnitude of the cutting force components is established