| Abstrakt: |
1.When different additives (S, Se, Pb, Ca, etc.) are added to steel, its machinability improves on account of the active participation of the forming inclusions in the processes occurring in the cutting zone.2.When high-speed steel tools are used on automatic lathes, it is most expedient to machine lead-containing and sulfur-lead-containing steels.3.In machining at cutting speeds above 70 m/min with sintered alloy tools it is recommended to use steels with additions of selenium or first-generation calcium steels.4.At even higher cutting speeds and machining with sintered alloy tools it is most expedient to use second-generation calcium steel. The range of effective application of steels with improved machinability can be extended by complex alloying. |
Full text from SpringerLink